Why can some people ride the same electric bike for 10 years, while others break down after 2-3 years? The same is true for batteries. Some people can use them for five or six years, while others can only use them for 1-2 years. Why is there such a difference? That's because you don't know how to charge. So the question is, how often should you charge your electric bike? What is the most suitable amount of electricity to charge each time? Today I searched AI and found a scientific explanation!
How to charge a lead-acid battery?

Charging frequency: It is more appropriate to charge when there is about 20%-30% of power remaining. Over-discharge of lead-acid batteries will cause plate sulfidation and shorten the service life. If the daily riding distance is short and the power consumption is low, you can charge it once every 2-3 days; if the riding distance is long and the power consumption is high, you need to charge it every day.
Suitable charging amount each time: Lead-acid batteries have no obvious memory effect, and each charge should be filled as much as possible. Generally speaking, after the charger turns green, it can be float charged for another 1-2 hours to ensure that the battery is fully charged. But avoid overcharging, otherwise it may cause the battery to heat up and lose water, affecting the battery life
Principle: Lead-acid batteries have no obvious memory effect, and each charge should be filled as much as possible. Generally speaking, after the charger turns green, it can be float charged for another 1-2 hours to ensure that the battery is fully charged. This is because in the later stage of charging, the current is mainly used to decompose water to produce hydrogen and oxygen. If charging is stopped too early, the battery may not be fully restored to a fully charged state. But avoid overcharging, otherwise the electrolysis reaction of water will intensify, causing the battery to heat up and lose water, accelerating the aging of the plates and affecting the battery life.

Principle: Lead-acid batteries do not have an obvious memory effect, so they should be fully charged each time. Generally speaking, after the charger turns green, you can float charge for another 1-2 hours to ensure that the battery is fully charged. This is because in the later stage of charging, the current is mainly used to decompose water to produce hydrogen and oxygen. If charging is stopped too early, the battery may not be fully restored to a fully charged state. However, overcharging should be avoided, otherwise the electrolysis reaction will intensify, causing the battery to heat up and lose water, accelerating the aging of the plates and affecting the battery life.

How to charge lithium batteries?
The best charging range for lithium batteries is 20%-80% of the remaining power. When the power is less than 20%, it needs to be charged in time. Although lithium batteries do not have obvious memory effect, over-discharge also affects their lifespan. If the power consumption is low during normal use, it is recommended to perform a complete charge and discharge cycle once a week to maintain battery activity.
Lithium batteries do not need to be fully charged every time. Charging to about 80%-90% is a more ideal state, which can slow down the aging of the battery. However, occasionally a full charge (full to 100%) can be performed to calibrate the battery power display.

Principle: Lithium batteries do not need to be fully charged every time. Charging to about 80%-90% is a more ideal state, which can slow down the aging of the battery. During the charging process of lithium batteries, lithium ions are removed from the positive electrode material and embedded in the negative electrode material. When charged to 100%, the amount of lithium ions embedded in the negative electrode material reaches saturation. Continuing to charge will cause lithium ions to deposit on the surface of the negative electrode to form lithium dendrites. Lithium dendrites can pierce the battery's separator, causing an internal short circuit, affecting battery life and even causing safety issues. However, you can occasionally perform a full charge (full to 100%) to calibrate the battery's charge display.