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Could the lead-acid battery which is under voltage for long time be repaired?

It depends on the degree of sulfurization of the battery plate. Severely sulfurized batteries can only be scrapped, if the sulfurization is slight, they can be charged after desulfurization, which is a method of troubleshooting charging.

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What should we do if the battery is "starved to death" after being placed for a month? 5 methods are very effective!

How to prevent the battery from being "starved to death" after being placed for a period of time?

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