1, is to find a group of electric vehicle lithium battery with the same model of primary battery, and will be connected with this group of unable to charge the battery, so that the good battery discharge to unable to charge the battery, after several cycles of parallel charging, there is a certain chance to reactivate the battery.
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2, is to use a small charger to charge this set of lithium batteries, and then change the original charger to continue charging. For example, the battery that can not be charged is 60V, you can first charge it with a 48V charger, and then change to the original 60V charger for charging, so that there is a certain probability that it can be activated.
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3, that is, you can try to quickly charge for one to two hours, and whether the voltage of the professional detector is increased, if there is an increase, you can choose to continue charging with the original charger, so that you can activate the electric vehicle lithium battery pack
To the battery repair department, they have dedicated high-capacity charging equipment activated.