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3 WAYS TO PROLONG THE LIFE OF YOUR ELECTRIC BIKE BATTERY
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3 WAYS TO PROLONG THE LIFE OF YOUR ELECTRIC BIKE BATTERY

Views: 0     Author: Site Editor     Publish Time: 2023-07-13      Origin: Site

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The battery for your electric bike is typically worth about a third of the value of the entire bicycle, so it’s important to find a good quality one and take care of it.


Below are three things you can do to ensure you get the longest usage out of your electric bike battery.


#1. Keep The Battery Cool


Environmental conditions are an important factor affecting lithium-ion batteries. For example, leaving one in your car in the hot sun will guarantee you lessen the life of your battery. In fact, that would be the worst situation: keeping a fully charged battery at elevated temperatures. It’s a good rule of thumb to store your bike out of the direct sunlight for long periods and when not in use, keep your battery in a cool place, preferably below 20°C (68°F). The chart below, provided by Battery University, shows the impacts of temperature upon recoverable capacity of a battery.

the impacts of temperature upon recoverable capacity of a battery.

#2. Store A Battery Partially Charged – But Not Too Low!


You’ll also notice in the above chart that storing a fully-charged battery has an impact on the recoverable capacity. Even more important, storing a fully depleted battery may be disastrous because, as we mentioned above, a lithium-ion battery will slowly discharge over time even when you’re not using it. If the voltage drops below a certain point this may cause irreparable cell damage, depending on the time it’s left sitting. Ideally, when storing the battery for a long period, ensure it has a charge between about 80% and 40% of a full charge. Some chargers have a lower ‘storage’ voltage setting, so just switch to this before charging it for storage. An easy alternative is to take the bike for a ride after you’ve charged it fully and before storing.


Also, don’t leave your battery on the charger for long periods of time, as storing it at or close to 100% will reduce the life of the battery. You can also check your battery every couple of months over winter. If you notice that the battery indicator has dropped too low, you can give it a quick charge to bring it back to the ideal storage voltage (this is unlikely to be needed if the battery was at 40% or above). If you don’t have a battery indicator, it’s probably a good idea to charge the battery for half an hour every few months. Again, try not to put the battery away fully charged (but it won’t be the end of the world if this happens.)


#3. Don’t Regularly Fully Discharge Your Battery


It’s amazing that we still see tech sites advising regular full discharge of your battery, even when this has been proven as detrimental. The chart below, again provided by Battery University, proves that regularly discharging lithium-ion batteries to 0% is harmful and partial discharges with regular top-ups are recommended to extend the recharge-cycle lifespan of the batteries.  The occasional full discharge on that extra long ride is no problem! It’s ok to top up lithium-ion batteries regularly and, as the chart below shows, it’s best to operate them in the top half of their discharge cycle; lithium-ion batteries don’t have a ‘memory effect’ that some other battery chemistries have. If you are doing short rides on a regular basis, it is slightly better to charge it every few rides rather than every ride (to avoid long periods at or close to 100% charge, as discussed above).


depth of discharge

As an extra note for the winter season, make sure your battery is above freezing before charging, otherwise you could harm the cells. It is no problem to ride the bike in below-freezing conditions (it doesn’t harm the battery), just make sure you let the battery warm up before charging. When you are riding in very cold weather, you will notice a drop in power and range; this is normal and expected.  You can help avoid this by bringing the battery inside whenever you aren’t riding to keep the temperature of the battery up. That way you will get that extra bit of power!


Correct maintenance and storage of your battery as detailed above will significantly increase its lifespan. A well-maintained lithium-ion battery will last between three to five years, whereas a poorly maintained battery can be badly damaged over just one season or sooner. For more detailed, scientific information on batteries and how to care for them, check out the excellent online resource at Battery University, where the above charts came from.


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