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I'm trying to make a lithium ion battery pack It needs to be a 7.4v 74wh the battery's I was thinking about using are 7.4 2000mAh how many 0f these will I need to hit the 74wh mark, or is this even something I have to worry about. It's for a metal detector I'm wanting to build cause a replacement is almost 500 dollars but can put one together for around 100 to 150 any help on this matter will be greatly appreciated . |
8 hours, 31 minutes ago |
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