Battery repair technology - historical capacity test you don't know

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

At present, there are three types of battery capacity in China: 1. Constant current discharge - timing - voltage termination. This approach is the approval of IEC, my country's final judgment of battery capacity is to determine according to the basis, and other probing methods, and other ways to compute this method.

Bothater repair 2, detection of internal resistance. You can see the post I'm quote, using this method, in the past, there is also a probe of Fuzhou Fuguang similar. Its core is to reverse battery capacity by detecting the internal block of the battery.

Battery repair, I use this way, first of all, there should be a priori related experience, relying on prior related experience to correct calculation data. Under the conditions of inaccurate experience in priori, the detection error is large. Especially after promoting pulse repair, the internal resistance of the battery decreases, often leads to a large capacity of the detection battery, not so big.

Battery maintenance technology 3, large current discharge method. 4, specific gravity (densitometer) detection method, etc. Lead-acid battery repair, therefore the problem and the internal resistance is not much, there is no relevant experience error.

For a good state, the battery is in a comparison method, can more accurately determine the capacity. But about the old battery, it is not so accurate. Different batteries are different, common open cells have start batteries and traction batteries.

When the battery is new, the weight is 1.28. Most of the traction batteries is 1.

28 (there are a few minority 1.265, which in recent years is not many). Electric automotive battery repair such battery should be more accurate to know the capacity, use the specific gravity method to repair the specific gravity (according to temperature), then know the specific gravity drop 0.

01, the battery discharge is much - this is different from the battery. Usually a specific gravity drop 0.01, the battery discharge is about 1/15.

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