Re: G1 vs G2 Leaf batteries and what to verify from the seller
Sometimes the seller will tell you the capacity, but again that's just their word.
The issue with the early Nissan was a software issue where it over stressed the batteries and so they degraded more quickly. If the Nissan owner didn't fully charge and didn't let the batteries discharge too far then (as Izzy said) the cells will likely be fine. The damage for over charging and over discharging is cumulative and permanent. So it all depends on what their life was before they came to you and you won't have a clue about that unless you test them yourself.
I charge my lith cells to 4.12vpc and discharge to 3.25vpc. My parameters are more conservative than many on here but it should help my cells have a long happy life.
Good luck!
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