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Discussion Starter · #1 ·
I have a bunch of Lipos (2S & 3S) that I have bought in the last five years - I was always told to charge them outside for safety - Whilst they are under cover they have been outside for a good three years, I have not charged them for at least 18 months. Some have swollen considerably (I guess I'll bin these) and others I've tried recharging but keep getting the following errors:

Battery Vol Err Cell Connect, (mostly)
Connection Error (some)

I have two questions:
  1. Can I resurrect these batteries and bring them back to life in some way?
  2. What is the correct method for keeping Lipos alive and well if I do not use them regularly?
Thanks in advance.
 
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