A1185 Macbook battery not charging because of low voltage (capacity is still good). Is it dead forever?
Is the battery dead forever? Or is there a way to revive it?


The battery is dead and there's no way to revive it.  It's time to replace it with a new one (get a quality battery with an 18 month warranty)

The logic board needs a minimum of 12V to operate.  7V is way under the threshold to turn on and will require the AC adapter to be plugged in.

For further details, see this post:  Fully charged MacBook Air turns off when power cord removed