/diy/ - Do It Yourself

>>2404526
So I have this weird Li-ion behaviour in that it reads ~3.4v, but applying voltage with my constant current supply it only draws around 300mA instead of going into CC mode and immediately goes up to the applied voltage.

I've had this several times with Li-ion batteries and have just thrown them out in the past because I assume they can't be revived when in that state.
I just wonder what caused them to fail in that weird way. They haven't been deep discharged or anything and other batteries in that pack charge and discharge just fine, having most of the specified capacity left.