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It is well-known to us that tires are crucial for bicycles, tires play a key role. Especially in high-intensity usage scenarios, improper use and lack of maintenance can accelerate tire wear, leading to tire aging, blowouts, and other issues. Therefore, it is vital for vehicle owners to maintain their tires properly. What are the key points for tire maintenance? Here are several suggestions for your reference. Proper Tire Pressure Insufficient tire pressure can lead to flat tires, which not only increases resistance and makes riding more laborious but also enlarges the friction area, accelerating tire wear. Conversely, over-inflated tires can cause internal air expansion, shortening the tire's lifespan. Therefore, you should inflate your tires according to the specified pressure values; in winter, inflate to the highest value, and in summer, slightly lower. Tire Cleaning After riding, you should clean the tires to remove debris and wipe them dry with a cloth. This prevents oils, hydrocarbons, and corrosive substances from adhering to the tires and causing deterioration. Also, avoid direct sunlight exposure. If not used for an extended period, road bike tires should be inflated to 70-90 psi, and mountain bike tires should be kept at 30-40 psi. As Qualisports Nemo kept at 35-45 psi, Volador at 40-65 psi, Dolphin at 35-60 psi, Beluga at MAX.35 psi. Overloading Although overloading rarely occurs with cyclists, it is undoubtedly one of the factors affecting tire lifespan. It will accelerating tire wear. Avoiding Sun Exposure Owners of bicycles typically take great care to avoid exposing their bikes to the sun. Tires are made of rubber, exposure to intense sunlight can accelerate tire aging. Besides, our electric bikes are equipped with lithium-ion battery, you should avoid strong sunlight as much as possible for batteries. Avoiding Chemicals Bicycle tires should be kept away from salt, acids, alkalis, and oils. Particularly when applying chain oil to bicycle parts, be careful not to let it drip onto the tires, as this may cause tire deterioration and reduce their lifespan. Exchange Front and Rear Tires After using the tires for a period, it is best to swap the front and rear tires.  This can helps even out tire wear and extends their lifespan. For the driving wheels of tires, wear is relatively high.

Protecting an e-bike's lithium battery in winter is important to ensure optimal performance and longevity. Cold temperatures can have a negative impact on the battery's efficiency and overall health. Here are some tips to help you protect your e-bike's lithium battery during the winter. Store Indoors:   Keep your e-bike and its battery indoors when not in use. Extreme cold temperatures can affect the chemical reactions within the battery, leading to a decrease in performance and capacity. Avoid Extreme Temperatures: Try to avoid exposing your e-bike to extremely cold temperatures. If you must ride in cold weather, store the battery separately and keep it indoors until you're ready to use it. Charge Indoors: Charge your e-bike's battery indoors where the temperature is more controlled. Charging in cold temperatures can lead to reduced efficiency and may even damage the battery. Use a Battery Cover: Some e-bike batteries come with covers or insulating material. If your battery doesn't have a cover, consider purchasing one. These covers can help to retain heat and protect the battery from extreme cold. Keep Battery Warm During Riding: If you're riding in very cold conditions, try to keep the battery warm. You can use insulating material or a battery warmer to maintain a stable temperature. Monitor Battery Health: Keep an eye on the battery's state of charge and overall health. If you notice a significant drop in performance or capacity, it might be worth consulting with the manufacturer or a professional to assess the battery's condition. Avoid Full Discharges: Lithium-ion batteries don't like to be fully discharged, especially in cold weather. Try to keep the battery at a reasonable state of charge, and avoid letting it sit in a fully discharged state for an extended period. Store at Partial Charge: If you're not planning to use your e-bike for an extended period during winter, store the battery at around 40-60% charge. This helps to prevent the battery from degrading during long periods of inactivity.   Always refer to your e-bike manufacturer's guidelines and recommendations for specific care instructions, as different models may have varying specifications and requirements.

Cycling in winter can be an enjoyable and invigorating experience, but it does require some additional preparation and precautions due to colder temperatures, potential snow, and icy conditions. Here are some tips to help you cycle safely in winter:   Dress in Layers: Wear moisture-wicking base layers to keep sweat away from your skin. Add insulating layers to retain body heat. Wear a windproof and waterproof outer layer to protect against the elements. Don't forget gloves, a hat, and a neck gaiter or balaclava to keep extremities warm.   Choose the Right Bike: Consider using a bike with wider tires for better traction. If there's a lot of snow, a fat bike with even wider tires can provide extra stability.   Check Your Bike: Ensure your bike is in good condition. Pay attention to the brakes, tires, and overall maintenance. Consider switching to winter tires with better grip.   Use Lights and Reflective Gear: Days are shorter in winter, so use bright front and rear lights for visibility. Wear reflective clothing to make yourself more noticeable to drivers.   Mind the Road Conditions: Be cautious of icy patches, especially in shaded areas or on bridges. Consider studded tires if you frequently encounter icy conditions.   Lower Your Tire Pressure: Lowering tire pressure slightly can provide better traction on snowy or icy surfaces.   Stay Hydrated: Even in cold weather, it's important to stay hydrated. Drink water before, during, and after your ride.   Plan Your Route: Stick to well-traveled routes that are more likely to be plowed or treated for ice. Inform someone of your route and expected return time.   Adjust Your Riding Style: Ride at a slower pace and increase your following distance. Be prepared to stop more gradually in icy conditions.   Carry Essentials: Pack a basic toolkit, a spare tube, and a pump. Bring a fully charged phone in case of emergencies.   Know When to Skip a Ride: In extreme weather conditions, use your judgment and consider skipping the ride if it's unsafe.   Remember, safety is the top priority when cycling in winter. With the right preparation and gear, you can enjoy the unique beauty of winter while staying safe on your bike.

So, you just buy a new electric bike? Can't wait to go out for a ride? Wait! Do you know what your bike needs? You need more accessories to make it more functional, more safer. Let us introduce the top 8 accessories you should have to be an electric bike rider. NO.8 BIKE LOCK Prices from $2.99 to $300+ on Amazon, you can choose a suitable one by referring to lock test reviews on YouTube. You must have a bike lock because you will ride your loverly electric bike to visit your friends or go to store for some shopping, you have to leave your electric bike outside, so give your electric bike a high-quality lock; they come with various shapes and sizes, such as normal U-lock, chain lock, Disc-lock... personally, I prefer the Disc-lock because the size, very space-saving (BUT your e-bike must have Disc brake). We suggest you never ever leave your electric bike outside by itself being unlocked, Because e-bikes are not cheap, and if lost, that will be very sad. Learn more: Pros And Cons Of Different Bike Lock Types   NO.7 BIKE BELL I'm not joking, it is a really important part, when you ride past other people, you should let them know you are coming to prevent an accident.It always comes from mechanical or electrical, my suggestion is the mechanical one, cheap and enough for use. The good news is all types of Qualisports folding electric bikes are equipped with a bell, no need to buy it extra. NO.6 BIKE ALARM If you often need to leave your e-bike outside for a long time, you should consider buying a bike alarm. The electric bike is not as heavy as a car, if someone wants to steal it, the lock just can slow the thief down; but with the alarm, when it detects movement of your electric bike, it will go off to let other people notice that someone is moving your electric bike. If you want to save some space on your e-bike, you can try some alarms that also have the function of a bell or headlight or any other functions. NO.5 GLOVE While riding, whether you like it or not, you should wear gloves to prevent any damage to your hands while crashdown, nobody wants to crash, but it does happen, so we should prepare for it.There are many types of gloves, generally, we can divide them into full-finger type and half-finger type. Different people prefer different types, choose one you like, but remember, it must comfortable while wearing it, have a good trip.Do you think wearing gloves is just for safety? NO! Many riders may suffer from handlebar palsy, due to long-time compression of a nerve in their wrist, that also lets them feel pain. If it is serious, they may risk suffering from nerve damage too.Learn more: 5 Reasons Why You Should Wear Gloves While Riding   NO.4 PEDAL What? pedals? yes, but what I mean is quick-release pedals or foldable pedals, especially for folding electric bikes! When you fold your electric bikes and carry them, the normal pedals might scratch your car, good news is, our electric bikes are all equipped with foldable pedals. NO.3 PHONE MOUNT Actually, the phone mount was the first accessory I bought for my folding electric bike. I like riding my electric bike for exploring many new places, and I need a map to ensure not lost my way, so I use my phone for directions, I don't want to stop every several minutes to look at my phone to make sure where I am. it's very convenient to look for directions on my phone with a phone mount. BUT, DO NOT operate your phone while riding!   NO.2 FRONT & TAIL LIGHT It's very important to have front and tail lights on your electric bike. They can make you more visible both at daytime and night, let other people or vehicles notice, and also light up your way when at night.Honestly, I hadn't bought lights for my first bike until I got crashed because of a big gap on the road, I can't see the road clearly at night, so I broke my new bike's rim, and my both hands were injured. Yes, not only I didn't have lights, but also I didn't wear gloves... I'm so pitiful...The good news is, now our folding electric bikes are all equipped with lights.   NO.1 HELMET Whether it's legal to ride a normal bike or electric bike in your region without a helmet, we HIGHLY recommend you wear a helmet for your safety. Nowadays, electric bikes are fast, class 1&2 e-bikes can reach 20 MPH, class 3 e-bikes can reach 28 MPH, so an approved helmet is needed.Learn more: What Is Class 1 & 2 & 3 Of Electric Bike? Contact us:Email: info@qualisports.usPhone: +1 (909) 678-2995 - CarlosAddress: 1150 S Milliken Ave #1062, Ontario, CA 91761Official Website: https://www.qualisports.us/YouTube: https://www.youtube.com/c/QualisportsFacebook: https://www.facebook.com/qualisportsusa/Pinterest: https://www.pinterest.com/qualisportsusainc/Instagram: https://www.instagram.com/qualisports_usa/

Increasing the mileage of an electric bike can be a challenge, as the range provided by manufacturers is often based on ideal conditions that are difficult to replicate. However, there are several things you can do to extend your electric bike's range during actual use. By following the tips below, you can improve your electric bike's efficiency and ride farther: Tire pressure Check your tire pressure regularly and maintain it at the recommended level. This can significantly affect your electric bike's mileage, as higher tire pressure leads to lower rolling resistance and better performance. Different tires require different tire pressures, so make sure you know the recommended pressure for your electric bike's tires. If you try to ride with a nearly flat tire, you may find it's very hard and slow, the same to the electric bike motor, it will need more electricity to rotate. so pump up your tire to the suggested pressure marked on the sidewall. For example, our new folding electric bike 'Dolphin Plus', its recommended tire pressure from 35psi/2.4bar/240kpa to MAX. 60psi/4.2bar/420kpa. Tire choice The tire should fit with what you are doing. Many E-bikes have big and wide tires with big anti-slider on them, also called knob tires. Yes, those tires can provide extreme grip when DH(Down Hill), also with bigger rolling resistance, but there is no need for those tires if you just ride on normal roads such as city streets or country roads. Using those big and wide tires on normal roads will dry your battery faster. Some 'fat tire electric bikes' called, tires above 3.0 or 4.0 inches wide, are more suitable for snowfield or sand rides, if you use those fat tires on normal roads, your mileage will decrease(not too much). But there is an advantage of those fat tires, when used on normal roads, they are more comfortable compared with thinner tires(1.5 inches wide or lower), if you come across a step or a hole, the 'fat tire E-bike' can filter through most bumpings, let you feel better, I had felt the difference, that's true. If you just need an electric bike for commuting, we must recommend you a Qualisports Volador which with 20*1.95 inch tire, that's enough for commuting. But if you want riding on beach, we would like introduce the Qualisports Beluga for you, 20*4.25 inch tire, which can ride both on normal roads and beach, have more fun. Lube the chain If your electric bike has a Mid-drive motor, it powers your electric bike through your chain wheel to chain to freewheel, if your chain didn't in good condition, that will increase the resistance and decrease the mileage. Don't you feel much easier after lubing the chain, even riding a normal folding bike? Regularly lubricating the chain can make it easier to pedal and extend your e-bike's range. Don't dry the battery out Try not to dry the battery out often! Nowadays, nearly every electric bike's battery is lithium-ion battery, this type of battery shouldn't run until dead, which will cause damage to your battery permanently, and reduce your battery's mileage. You may not feel the damage at the beginning, but as time pass, after one year you always dry the battery out, and you can feel your battery's mileage is less than before.   Why did I so sure? Because I had done an experiment on my own folding electric bike and two iPhone 13. As for comparison, let me tell you about the experiment between two iPhone 13. Usually, my iPhone often charged when the battery is above 40% and below 90%; my wife's iPhone always gets charged when the battery is below 10% or after shutdown. After one year, my 'battery health' says it can hold 97% of its MAX capacity while my wife's battery just can hold 83%. See the difference? I'm not joking, the experiment won't cheat you. Pedal harder It's easy to know, when you want to go from one place to another place with your electric bike, there are 3 ways: pedal your electric bike yourself; or let the motor 'pedal' for you; or pedal with the motor together. When the motor boosts you up, it needs electricity from the battery, and the electricity stored by your battery is limited, if you want to travel further with limited electricity, the only thing you can do is pedal harder, you do the most effort yourself, let the motor have a rest or at low power.   Gear choice This is a riding technique, when going uphills, you need to switch to lower gears to gain more torque; but when on flat terrains, you can use the higher gears to get a higher speed. This will affect mileage both on Mid-drive or hub motor electric bikes, mid-drive motor electric bikes will have more affection than hub motor E-bike if you didn’t choose the suitable gears while in pedal assist mode. If your electric bike is riding in pure electric mode, this tip can only affect the mid-drive motor E-bike, because the mid-drive electric bike boosts your bike through chain and freewheel. So, you should choose a suitable gear to gain enough torque or speed and keep them in balance through gear reduction.     Riding weight Don't take too many things with you when riding, do those things in need? Ride in short distances that will be almost no difference, but if you have a long way to go, you must consider this.   Ways using the power I can share with you the result of my experiment: When starting up, the motor will consume more power; when traveling at a higher speed, the motor will consume more power. so if it's not so hurried, you can try lower speeds such as 15.5mph, and pedal with the motor when starting up to go further.   Follow for more: qualisports YouTube qualisports Instagram qualisports Facebook

Spring is a great time to dust off your electric bike and hit the road again. Whether you're commuting to work, running errands, or just out for a leisurely ride, there are a few things you can do to get the most out of your ebike this season. Here are some tips to help you boost your spring ride: Check your tires: After a long winter, your tires may be low on air or even flat. Make sure to check the pressure and inflate them as needed. If your tires are looking worn or damaged, it may be time to replace them. Clean your bike: Winter weather can leave your bike covered in dirt, grime, and salt. Give it a good cleaning to get rid of any buildup and prevent rust. You can use a soft brush or sponge, warm soapy water, and a gentle hose to clean your bike. Lubricate your chain: A well-lubricated chain is essential for a smooth ride. Clean your chain with a degreaser, and then apply a lubricant that's appropriate for your bike's drivetrain. Be sure to wipe off any excess lubricant to prevent dirt and grime buildup. Check your brakes:   Brakes are crucial for safety when riding an ebike. Make sure your brake pads aren't worn down and that they're properly aligned. Test your brakes before hitting the road to make sure they're working correctly. Adjust your seat and handlebars:   Make sure your bike fits you properly for maximum comfort and efficiency. Adjust your seat height and angle, and adjust your handlebars to a comfortable position. Charge your battery:   Your battery may have lost some charge over the winter, so make sure it's fully charged before heading out on a ride. Depending on the model of your ebike, you may need to charge the battery for several hours. Plan your route:   Spring weather can be unpredictable, so plan your route accordingly. Check the weather forecast and plan for any potential hazards or obstacles, such as wet roads or construction. Wear appropriate clothing:   Dress in layers so you can adjust your clothing as needed for changing temperatures. Wear bright, reflective clothing to increase your visibility to motorists. Practice safe riding:   Obey traffic laws, ride defensively, and always wear a helmet. Be aware of your surroundings and watch for potential hazards, such as potholes or gravel. By following these tips, you can boost your spring ride on your ebike and enjoy a safe, comfortable, and efficient ride. So get out there and hit the road!

The mechanical structure of hydraulic disc brakes is more precise and complicated than that of C brakes, so riders are not recommended to replace them on their own except for simple debugging.    Problems commonly encountered with hydraulic disc brakes include strange noises, improper trips, air mixing, oil leaks, overheating, etc. Generally speaking, other than the strange noises associated with calipers, other problems can be described as "oil" related.   Over-tightened brakes Newly purchased electric bikes with mechanical brake and e-bikes with hydraulic brakes may have the problem of small gaps and tightness. You can try break-in method: choose a flat and open outdoor road, ride the bike to a speed above 10 mph, brake hard to walking speed, i.e., about 3 mph, repeat 20 times; then ride the bike to a speed of about 15mph, apply the brakes to the end, repeat 10 times, the break-in will be over, and you will feel the braking effect getting better.  Our four models of folding electric bike hardly have those problems, such as 16 inch folding e-bike Nemo, 20 inch folding e-bike Volador with mechanical disc brake, and 20 inch folding e-bike Dolphin, 20 inch fat tire folding e-bike Beluga with hydraulic disc brake, we will adjust all parts before leaving the factory, just enjoy your ride.   Brake noise The problem that causes brake noise is mainly due to improper installation position or the caliper is mixed with mud and foreign matter. We can solve this in order by elimination method.First, check whether the disc is located in the middle of the two lining pads, which the knob on the caliper can adjust; then, check whether the disc is deformed and deflected. A slight deformation can be corrected or replaced with a new disc; finally, check whether the wheelset is correctly installed. If there is deflection, the wheelset must be reassembled.If there is no problem in the first step, proceed to the second step: clean the caliper disc and replace the liner plate. First, we can remove the brake lining pads and wipe the pads and discs with a liquid mixture of alcohol in equal proportions. Then dry them with paper towels; secondly, check whether the pads are stained with oil and if they need immediate replacement. Watch the video below if can help you:   Brake system full pressure Full pressure in the oil disc means that the oil circuit is overfilled with oil or absorbs water vapor, especially DOT brake fluid, which is highly hygroscopic. As time goes by, the pressure of the fluid line that absorbs moisture rises, resulting in smaller and smaller gaps and poor rebound of the lining, which makes it easy for the wheels to rotate poorly and hold when the brakes are applied, causing potential danger.We can replace the oil. This is suitable for vehicles that have not been ridden for a long time and for vehicles that have been changed more than half a year since the last oil change. The oil quality has dropped significantly, and in this case, the brakes and discs will rub excessively, so a new oil change is more effective; or drain the oil properly. Loosen the oil filler screw at the oil filler hole on the brake handle, and the excess oil will spill out naturally. Wipe the oil with a paper towel to tighten the screw. If the wheel is hard to turn, we can repeat this step until the wheel turns smoothly. Too much trouble? let me tell you a good news: All Qualisports electric bikes with hydraulic brake, are using mineral oil, but attention, do not mix them together.   Brakes out of fluid and air Due to the damage to the oil circuit, disc brakes will be short of oil or mixed with air, which will lead to a soft grip and weak braking. Then, we need to expel the air and replenish the oil. At present, except for some brand like Shimano hydraulic disc brakes which use mineral oil brake fluid, some other brands use DOT oil. The boiling point of mineral oil and DOT oil after absorbing moisture are both lower (such as DOT4's dry boiling point is 446 ℉, and the so-called wet boiling point is the boiling point after mixing with water. The more water content, the lower the boiling point), resulting in frequent braking under the oil circuit heating up and boiling after damaging the oil pipe, especially the oil pipe connected to the caliper, more likely to leak oil and mix with air.If there is air in the uppermost part of the oil circuit, you can use a needle syringe to inject the corresponding oil and fill it up. You can choose discs with better heat dissipation using mineral oil disc brakes to avoid boiling and oil leakage.How do we determine if the oil brake is leaking? An oil stain on the surface of the brake does not necessarily mean an oil leak. We also need to judge whether the oil leak is confirmed according to the actual situation after the oil disc is actuated.First, we must do some preparation work: clean the hydraulic brake. Wipe off the dust on the handle with alcohol wool. Next, we need to make a preliminary judgment on the clamp end and carefully observe whether there is oil leakage from the four clamp parts.The first part is to observe the position of the seam of the clamp. If there is oil, it may be caused by the damage or leak to the upper and lower seat seals.The second part is to observe whether there is oil leakage from the joint screw patch. Excessive deformation and rupture of the brass sleeve, improper assembly of the oil tube, and slipping of the screws can also lead to oil leakage.The third part is observing whether oil is oozing out of the oil leak nozzle. If there is oil, it may be that when locking into the oil spout screw, the teeth seam is stained with mineral oil. After riding or the external temperature is too high, the oil is discharged outward, and dirt is attached to it, mistaking it for an oil leak. In the last part, carefully remove the brake lining and check if there are oil stains on the back plate of the lining. If there are oil stains, it is likely that the piston is leaking oil and needs further determination. We need to use an alcohol cotton ball or ultrasonic cleaning machine to clean the inside and outside of the clamp, then spray the surface of the oil disc with an air gun to keep it clean, install the oiling block and press the brake to check if it is solid. If it feels soft, you need to make up the oil. After making up the oil, you also need to clean up the oil stains to avoid misjudgment.If there are persistent bubbles on the edge of the upper and lower seat pistons and oil stains when the block is removed, the clamp must be leaking oil, and the whole clamp set needs to be replaced. If there is no oil stain and no air bubble in the piston area, there is no oil leakage.Next, we need to determine if the brake handle is leaking. Operate the brake handle 5~10 times and observe if there is any oil leakage from the three screws. Improperly assembled oil groove washers or deformed washers can lead to oil leaks. Continue to operate and observe if oil is coming out of the oil groove cover. Then observe whether oil flows out from the piston part of the handle. Debris on the aluminum piston seal and piston surface can cause the aluminum piston to wear and leak oil. Observe whether there is oil seepage from the handlebar connecting the screw part. If there is oil seepage, it may be caused by deformation and rupture of the copper sleeve or improper assembly of the oil tube. If there is oil leakage in the above handlebar parts, then the whole handlebar set needs to be replaced.When your bike encounters a problem, it is recommended to be referred to a professional repair store to ensure that your bike's brake system can operate safely.  Qualisports have been focused on manufacturing high quality folding electric bicycles for more than 5 years. Now we have four unique models of folding e-bike: Nemo, Volador, Dolphin and Beluga. Our folding e-bikes are suitable for commuters, adventures and everything in between. Can be used as a chair or taken on the underground or bus because of its small size. Have fun riding, Qualisports, delight your life. Contact us: Email: info@qualisports.us Phone: +1 (909) 678-2995 - Carlos. Website: https://www.qualisports.us/ YouTube: https://www.youtube.com/c/Qualisports Facebook: https://www.facebook.com/qualisportsusa/ Pinterest: https://www.pinterest.com/qualisportsusainc/ Instagram: https://www.instagram.com/qualisports_usa/

An electric bike is not only a daily commuter but also a very important partner. It brings various convenience to our life, and also brings us health as it helps us to get more exercise. So it is important to pay attention to regular maintenance and cleaning so that your electric bike is always in the best condition. Every bicycle needs cleaning and your Qualibike is no different. Some riders may wonder how often should we clean the e-bike. The answer depends on the frequency of using the bike and the type of terrain on which you ride. Regular cleaning and maintenance can keep the vehicle in a good range of service life. The following tools are usually used to clean folding bicycles: wrench tool, toothbrush, chain oil, transmission cleaner, and car wash wax.   1. Cleaning Body One of the first and most common tasks is to clean the body. It is often recommended to wash it directly with a water gun. However, we are more accustomed to the practice of picking up a bucket of clean water, dripping in some car wash wax, and then slowly wiping the entire body with a damp towel. The process might be slow, but it has its benefits: on the one hand, you can carefully check the overall condition of the vehicle, and in the process of wiping, you can find any knocks or obvious faults that need to be repaired; on the other hand, wiping can avoid a lot of water impacting other transmission parts and avoiding noise from the transmission center shaft or bearings. Cleaning the bodywork is just the first step and can be done easily with wiping. A clean folding bike is not only enjoyable to ride, but it also reduces the damage caused by the long-term lack of cleaning. 2. Cleaning Transmission After cleaning the body, we will focus on cleaning the transmission part of the folding bike, which mainly contains flywheel, chain and guide wheel. For those who pursue the ultimate cleanliness, they are used to removing the flywheel, chain and guide wheel parts for cleaning. However, in daily life, sometimes we do not have the conditions to disassemble the parts and cannot take them down for cleaning, so we prefer to clean them with a toothbrush after spraying the cleaner. There are a very large number of transmission cleaners on the market, usually with a spray nozzle bottle design. Turn on the nozzle switch, aim it at the parts to be cleaned, spray some cleaner and leave it for a while so that the cleaner can dissolve the stubborn oil stains on the parts. For stains that can't be dissolved, you need to scrub them repeatedly with a toothbrush, and this is the step where you will feel the most accomplished. It's easy to get great satisfaction from seeing the previously dirty flywheel start to regain its silver color after some cleaning. You can take a discarded hard card and wrap a rag around one end of it so that you can easily clean the stain from the middle crevice of the flywheel. 3. Checking Brakes Brakes are one of the things we focus on every time we do maintenance, after all, they play a vital role in the riding process. An excellent brake feel not only maintains a better braking effect, but also gives you a safer chance in case of emergency braking. The brakes are relatively simple to tune. When the wire pulling disc brake is found to be inappropriate in strength, you could check where it most likely needs to be tuned by controlling the variable method. Generally, you need to check if the brake clamp is too large. By adjusting the position, you can easily adjust the brakes to the feel you need. You can also adjust the brake cable strength to maintain a good feel. The maintenance of hydraulic brakes is a bit more complicated, you need to check the brake fluid on the brake handle for air or insufficient brake fluid, and sometimes you may need to change the brake fluid.   4. Checking Shifting Another factor that affects the ride is the shifting effect and feel of the transmission. A folding ebike that has not been maintained for a long time is prone to poor shifting and even some gears not shifting properly. If you can't replace the shifting cable, you can also control the shifting effect by adjusting the strength of the rear derailleur limit screw. Usually we will screw half a turn for one dimension, and check if it can be shifted properly after screwing.   5. Whole Bike Inspection After completing the above actions, most of a routine maintenance is over. What remains is a detailed inspection of the whole bike: check whether the tire pressure is normal, whether the seat tube needs to be cleaned, whether the screws of each part are loose, whether the safety function of the folding buckle is normal, etc. Through maintenance, we can keep our bikes in the best condition for a long time, which in turn will benefit our next ride, and it can accompany us to see more distant scenery.  

Latest updated time: 03/26/2024   In recent years, lithium-ion batteries are gaining popularity for their lightweight, environmentally friendliness, and long life. As we all know, the battery is an integral part of the e-bike system. It stores the electricity in it and boosts you up with the motor. When the battery gets to the end of its life cycle, it won't stop working immediately, you will find you can get 30 miles before, but now just can go 25 then 20 or less on a full charge.   Something you must know before you read this article: 1, All li-ion battery life is limited, depending on our actual use, it might be shorter or longer. 2, All li-ion batteries begin ages after they are born, even if not used. 3, One charge cycle is counted as charging the battery from 0% to 100%. 4, Usually, a Li-ion battery can reach 600 to 800 cycles (sometimes more).   To extend the battery's life, here are some tips for you to refer to:   Try to avoid high-current discharge   If you ride an e-bike in pure electric mode, the faster you go, the higher current the battery takes; the higher current result in lower battery efficiency. The same as going up hills, the steep the incline is, the higher current will be.   When at 10 mph, the battery discharge at about 3 Amps, efficiency is around 99%; 15 mph at 5 Amps with 95% efficiency; 20 mph at 8 Amps with 90% efficiency. *Tested on a 48V 500W(rated) motor, there will be differences.   We have done an experiment on an e-bike equipped with a 48V 13Ah battery; in pure electric mode, it can reach 51 miles when kept 16 mph, if at 31 mph, just can reach 23 miles. See the differences? The battery's efficiency when at 31mph just reached 89% of 16mph, that's the result of a higher discharge current for the battery.   Frequent acceleration especially full-acceleration also will drain the battery in a high current, when cruising at 10mph, output power is around 150 watts(current 3 Amps); when full-acceleration from standstill, output power(peak) is around 750 watts(current 15 Amps).   So, try to maintain a suitable and constant speed to keep the battery working steadily, it can make your battery last longer.   Try to avoid a deep discharge rate   Many factors can affect the life of the battery, one of the most important factors is the depth of discharge. A study published by Cadex Electronics described that a Lithium-ion battery would have a 50% longer lifespan if it is charged after 50% discharge instead of fully discharged(like dropping to 0%). What's more, charging after only a 25% discharge rate resulted in a 67% longer lifespan!   So, try not to dry it out totally, like discharge it way down to 0 % before recharging it, According to many articles and experiments, the lithium-ion battery doesn’t like being fully(deep) discharged; try to avoid draining your batteries below 25% when possible.   For example, I had done an experiment: On two iPhone 13 which also use the lithium battery. Usually, my iPhone always gets charged when the battery is around 50%, and my wife's iPhone always gets charged around 1% or after shut down(0%); After one year, my Battery Health says it can hold 97% of its MAX capacity while my wife's battery just can hold 83%. See the differences?   By the way, If you use 25 percent of the battery’s capacity, then recharge to 100 percent, you can do this 4 times to reach one charge cycle.   Try to charge the battery up to 80%   To maximize battery life. It is better to charge to 80 percent if you know you don't need a full battery(Pro tip: Chargers are less expensive and last much longer. If you're considering the purchase of a second battery to keep at the office, buy a second charger instead.).   Most would agree that you will get more charge cycles if you charge your battery to 80%; in my experiment, I charged 100% every time, because I think the battery is just for me to use, and I want to go anywhere any time I want, enjoy my life. From the test result I did on two iPhone, this makes a little difference.   But if you want, you can get a Timer, we all have better things to do than to sit and watch a battery charging; many Timers can cut off the power automatically, so get yourself one and set it for hours when charged nearby 80%   Lithium-ion batteries have NO memory effect, this was for Nickel Cadmium batteries that went out of style decades ago, yet this is a surprisingly common question people ask about any rechargeable battery. Learn more: Lithium-ion batteries do not have “battery memory”   Store batteries charged at 50%   Are you not using your e-bike for a longer period of time? Avoid leaving the lithium-ion battery in a state of long-term power loss, this will result in a much-reduced lifespan for sure. Try to keep your battery charged between 40% and 60%.   Unlike most other battery types (especially lead-acid), lithium-ion batteries do not like being stored at high charge levels   For storing batteries long term, charge them to about 50% and check on them every 2 to 3 months, Is it below 40%? (the battery will self-discharge over time), if so, give it a booster charge to return to the 50 percent range.   Store batteries in a cool & dry location   Try to keep your batteries cool whenever possible, Storing at temperatures higher than 185℉ or lower than -49℉ can be really bad for your e-bike battery.   This is why it is important not to leave your battery in the car, during summertime, the inside of your car can exceed above 140℉ in 20 to 30 minutes under direct sunlight, the highest even reaching 186℉. Keep an eye on the temperature. even The best BMS in the world can’t keep a battery from frying in a 186℉ car.   It is recommended to store your batteries between 0-40℃, which is 32-104℉.   To Summary  • Try not to discharge to 0% often • Charge your battery to about 80% to get more cycle life. • All batteries get ages naturally, whatever is it used, just buy it when you need to use it.  • Get a larger battery if possible, so you can still get enough range and high cycle life by light discharge. • Avoid exposing your battery to high temperatures and store it in a cool and dry place with 50% charged.   Keep in mind you can do all or none of the above, the bike will still work fine, but the battery may not live as long.  As time goes on, battery management systems (often referred to as BMS) and smart chargers get better and better, allowing you to be more carefree with the battery. (Something the BMS can't do anything about, like exposed to sunlight)     Contact us: Email: info@qualisports.us Phone: +1 (909) 678-2995 - Carlos Address: 1150 S Milliken Ave #1062, Ontario, CA 91761 Official Website: https://www.qualisports.us/ YouTube: https://www.youtube.com/c/Qualisports Facebook: https://www.facebook.com/qualisportsusa/ Pinterest: https://www.pinterest.com/qualisportsusainc/ Instagram: https://www.instagram.com/qualisports_usa/