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[regiment]

have been given a 12 volt  12 amp battery  i have a 4 amp charger dose that mean it will take 3 hours to charge no wise cracks please

[Timo2]

Hi
 
   NO
 
  about  4  hours if its a good  auto charger

  timo2   

[alan colson]

If this is a 12volt 12amp gell cell then at 4amp charge stand well clear. These batteries are only ment to be charged at about half an amp per hour as they are sealed and cannot vent the gases.
Alan

[malcolmfrary]

Just because a 4amp charger can deliver 4amps, it doesn't mean it will.  Unless its a smart charger, it needs monitoring with an ammeter.  The current will reduce as the charge progresses, but, as Alan has said, charging at too high a rate is BAD.

[regiment]

thanks you all  ...remerdy dump the battery or get a smaller charger

[Timo2]

Hi All

   Regiment have a look       http://www.powerstream.com/SLA.htm


      " It is safe to charge all lead acid batteries with modern fast charge algorithms."

   
   Timo2 

   PS   Not in the House the boss will not like the smell or acid burns

[RaaArtyGunner]

Regiment, Good question 
Timo, Good link, most informative Thank you.

[Shipmate60]

If you have a 12 volt Gell Cell battery charger this will charge your battery, it will just take longer.

Bob

[malcolmfrary]

thanks you all  ...remerdy dump the battery or get a smaller charger

Nah - best answer is to get a meter.  I saw one in Craplins the other day at about 7 quid.  The first time it saves you from buying either a new battery or a new charger its paid for itself.  The second time you're in profit.