View Single Post
  #24   Report Post  
Posted to uk.d-i-y
Dave Dave is offline
external usenet poster
 
Posts: 2,735
Default When is a lead-acid battery charged?

Fredxx wrote:
"David Hansen" wrote in message
...
On Fri, 9 Oct 2009 13:40:27 +0100 someone who may be
(D.M. Procida) wrote
this:-

The charger says it's running at about 3 amps. When can I consider the
battery properly charged?

Lead-acid batteries are best left being trickle charged. Of course
that implies that the charger is capable of doing that, which many
cheap ones are not.


Ouch no!! That's the best way of wrecking a lead acid battery, especially
if the sealed types. Any current after it's fully charged will dry out a
battery.

The best charger has always been a constant voltage charger. This matter
has been discussed ad nauseum before in the NG.


I am going to take one of our two cars off the road at the end of this
month. I had thought of running a mains extension under the bonnet and
leaving a charger there. The extension will be plugged into a timer to
control how long the chargers is on.

How long a time should I power up the charger, per day/week?

Dave