A new LiFePO4 battery is in a low-capacity self-discharge state,and in dormant state after being placed for a period of time. At this time, the capacity is lower than normal value, and the using time is also shorter. This kind of capacity loss caused by this self-discharge is reversible, it can be recovered by charging the lithium battery.
The LiFePO4 battery is very easy to activate,generally after 3-5 normal charge and discharge cycles, the battery can be activated to restore the normal capacity.
When should we charge a LiFePO4 battery? Some people will answer without hesitation: the electric vehicle should be charged when it’s out of power. As the number of charge and discharge times of the lithium iron phosphate battery is fixed,So the iron phosphate lithium ion battery should be used up as much as possible before recharging.
In normal situation, the lithium iron phosphate battery should be used up and before recharged, but should be charged according to actual situation. For example, the remaining power of the electric vehicle tonight is not enough to support the trip tomorrow, and the conditions for charging are not available the next day. At this time, it should be charged in time.
Generally, LiFePO4 batteries should be used up and recharged. However, this does not refer to the extreme practice of using up the power completely. If the electric vehicle doesn’t be charged after the low battery warning until it cannot be driven, this situation may cause the voltage too low due to the over-discharge of the LiFePO4 battery, which will damage the life of LiFePO4 battery.
The activation of the LiFePO4 battery doesn’t need any special method,just charge it according to the standard time and procedure. In the normal use of the electric vehicle, the LiFePO4 battery will be activated naturally; when the electric vehicle is prompted that the battery is too low, it should be charged in time.