Repaired GreenWorks Pro 80V pack
Автор: Scott Messina
Загружено: 2020-09-19
Просмотров: 5703
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I have had this pack sitting around for a couple of months. A few weeks ago I bought one of those $35 DIY battery spot welder kits and some nickel strips on Amazon. It seemed to work okay on some failed cells I has sitting around, so this morning I thought I would try to get at least one project off of my mind.
I cracked open the pack, and metered each of the cells. the first 5 on the + side were below .2 VDC each, the rest were over 4 VDC each. I had about 10 cells left from when I demoed a prior GreenWorks Pro 80V pack, and they had warranty replaced it. That one was DOA, as it had been on a shelf somewhere for a couple of years and died before I was the unfortunate one to receive it.
Rather than year the whole pack apart, I just clipped a few supports for the frame, and slid the old cells out and new ones in. If I have to do it again, I have the entire frame structure from the prior pack that I can reuse, but I'm thinking this is a one time repair, as I think it is probably the BMS that failed and killed those cells. If it lasts me 20 more charge cycles I'll be pretty happy with my efforts. I will update when I think I've crossed some random milestone.
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