On Fri, 09 Oct 2009 15:57:07 +0100, D.M. Procida wrote:

Andrew Gabriel wrote:

It's a car battery.

If it's been taking 3A for a few hours, it will have 9Ahrs (less a bit
for inefficiency) added to it, which is plenty enough to start a car
many times, unless there's something wrong. The car will then charge it
properly, and much faster, whilst you do your regular driving (don't
sit on the drive reving the engine, as that's pretty pointless).

It's a 60Ah battery. The terminal voltage isn't yet up to 13V.

It's a fairly new battery, yet either there is something wrong with it,
or there is something wrong with the car (that is draining it rapidly
while it sits on the driveway).

The other day it was flat, so I charged it for an hour or so, it started
up right away, then later that morning it was flat again.

Daniele

Had a Daewoo (yes I know but ...) and it had a known feature where the
bracket holding the brake light switch got tired and bend slowly out the
way so eventually the brake lights stayed on - battery flat next morning.

Not saying it is but ...