"Tim Lamb" wrote in message
...
In message , Rick Hughes
writes
On 10/05/2012 21:03, Tim Lamb wrote:
Newish car battery employed to power pony field electric fence. Likely
to have been left connected well beyond the fully discharged state and
possibly exposed to overnight frost.

Won't take a charge! Yes, I know, throw it away. However, horse person
has gone off with my sound spare. Is *over* discharging an issue?
or...?

regards
if it is not sealed ... I recovered one battery by washing out then
filling with battery acid (not distilled water) .. and left it on long
slow trickle charge ...

Not sealed but where did you acquire battery acid?

Same place you buy car batterys etc.