Electric Bicycle Battery-Authoritative Guide
Getting the most out of your battery
Charging the battery
Charge the battery pack immediately after each ride, the more the better. If feasible, bring a charger and charge the battery pack at your destination.
It’s okay if the battery pack is not fully charged, but it’s good practice to keep it as “full” as possible.
There is a belief that it is beneficial to have the battery “fully discharged” from time to time. This is not true. The concept comes from early NiCd batteries, which needed to be fully discharged to help them retain capacity. The cells in your battery pack are not of this type. All modern batteries (including lithium-based batteries) are best fully charged as often as possible, but once fully charged they should be removed from the charger, as overcharging can lead to overheating
Battery pack maintenance
Electric bicycle batteries can exceed 40% of the cost of an electric car. Maintaining your ebike battery is an important part of regular maintenance. Extending the battery life by one year can greatly save the operating cost of the ebike.
These precautions are designed to help you get the best performance from the battery and extend its life.
All batteries are easily damaged. Vibration, knocking, or dropping can be fatal to ebike batteries under certain conditions. Similarly, overheating (anything higher than 90of) will reduce battery life and performance. Overcharging and excessively high discharge rates (such as short circuits) are quick ways to shorten the life of rechargeable batteries.
How to extend battery life
First we should point out that a battery consists of multiple cells that are connected together to produce the required voltage and power. Proper maintenance will extend the life and power of the battery.
Lead acid battery
Battery Maintenance Procedure
1. Connect the charging plug to the power pack, then connect the other lead to the power source. Turn on the power supply.
2. Once the charger indicates that the battery is charged, turn off the power.
3. Allow the battery to sit for 20 minutes.
This is the part that is rarely explained by the battery manufacturer or supplier. To explain, let’s use an analogy: If you fill the bathtub with hot water, the water near the faucet is warmer than the water at the far end of the bathtub. If you don’t stir the tub, it takes some time for the water to even out the temperature. Of course, the water near the faucet will eventually get cooler. For batteries, a similar situation occurs.
The charger is designed to detect when the correct battery voltage has been reached. Then the charger switches to “standby” mode. (Think of the temperature in the analogy above). Like bath water, the voltage of the battery closest to the charger is higher than the voltage of the battery farthest from the charger. Therefore, the battery needs to rest for a while to allow the charge to be evenly distributed throughout the battery pack. This takes about 20 minutes.
4. After turning off the power, wait at least 20 minutes, and then turn on the charger again.
Note: You will notice that the charger will indicate that it is charging the battery pack again. Keep the charger on until it indicates the batteries are charged. Repeat this cycle until you turn on the charger after waiting 20 minutes and the charger indicates that the power pack is fully charged in just a few seconds.
At this point, the battery is fully charged. Initially, this is a bit of a pain. I believe this is why users do not realize the importance of this system. By doing this, the life of the power pack is extended. The battery’s power capacity will also increase. The good news is that you will find that the charging process for your particular battery pack and charger is regular, so once you get used to it, it becomes a matter of habit
5. Finally, connect the charger and charge the bike once a week when you are not using it. You only really need to do this once a month, but a weekly routine is easier to track.
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