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Subject: Re: [geda-user] Tenergy TB6B LiPo Charger
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Precedence: bulk

> 7.4V is two cells, so that strongly suggests that you have a shorted cell.
> 
> Two separate batteries?  What are the odds?
> 
> It won’t ever charge again.
> 
> Two new batteries are on the way.
> 
> Now my question is what would be a better cutoff circuit?  Mosfet or solid
> state relay?

Mosfet usually fail short circuit while relay usually fail open circuit.

Relay have to be rated for DC voltage, AC rating is not enough!