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Old 12-10-2019, 01:15 PM   #62
matchlesspat
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matchlesspat is on a distinguished road
 
Join Date: Nov 2019
Location: Essex UK
Posts: 18
3 yr Member
Default dead battery

When I opened up my defective battery, would not float charge to above 63 volts, and red light when installed I found several dead blocks of four cells in one half of the battery, o.2 volts, the other half seemed ok, all blocks at 3.2 volts, although I think there could be a odd dead cell in a block of 4 cells and it still reads 3.2 volts, at that point I gave up, packed it up and sent it to someone who can to capacity test the "good" cells and advise where we go from here, I know my limits....... I was very surprised that it had 63 volts with at least 16 dead cells!

I was advised to use heat rather than a dremel to open up the battery, very easy and went well, just use enough heat but not too long in one place, I checked how hot the battery pack was when I removed it from gorilla snot in the bottom of the case, they were stone cold although the case was quite hot, the layer of glue insulated them,
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