Repair method of lithium battery in electric vehicle(ebike battery packs repair)

First of all, the lithium battery can be charged normally, but it can also be used when installed in the car. Generally speaking, a single charge can run for 50 kilometers, but my battery can run for 10 kilometers when it is fully charged. I don't know what's the matter. Is the life of the lithium battery reduced? How to repair it? Can it still be repaired?

The lithium battery of electric vehicle usually consists of at least ten or more lithium batteries in series, and is equipped with battery protection plate, which is totally different from the lead-acid battery group (the number is small, generally without protection plate). In case of failure, the non professional technical personnel generally cannot solve it.

The damage of lithium battery pack of electric vehicle generally includes the following situations:

1. The battery protection board is damaged, and the electronic components on it are dense, which is generally difficult to maintain;

2. The battery protection board is in good condition, and the performance of a single battery becomes poor, so it is not easy to find it;

3. The battery protection board is in good condition, some batteries are short circuited, to be checked;

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