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meathead battery question
Posted: Mon Feb 22, 2010 6:24 pm
by Alex
hey guys,
so i bought a deka intimidator AGM battery about 18months ago.
it was in the car and fine for a year or so, i then removed it(cant remember if it was flat or charged) and let it sit at a mates house for about 6 months.
now i wanna go pick it up this arvo, IF it was flat when i took it out, is it likely to be cactus? Im not sure how these gel cell batterys work, with running them flat and killing them etc. Im just slightly worried cos it did set me back a fair few $$.
thanks heaps
alex
Posted: Mon Feb 22, 2010 7:01 pm
by TOONGA
Posted: Mon Feb 22, 2010 7:17 pm
by vincentvega
if you stored it flat that a big no no. always charge a battery before storage.
what voltage ios it reading now?
Posted: Mon Feb 22, 2010 8:24 pm
by Alex
it has 7.8v in it at the moment.
ive got it on trickle charge as we speak. See if it charges and holds it, but im not getting my hope up

good way to throw away $500
alex
Posted: Mon Feb 22, 2010 8:24 pm
by AlpineRaven
if it was a flat battery you have a very small chance to get it charged up again, also how did you store it? if you stored it on cement, it drains battery quicker, if you store the battery off cement on block of wood its okay.. normally they can be stored upto 6 mths without charging otherwise it will go flat.
Cheers
AP
Posted: Mon Feb 22, 2010 8:30 pm
by Alex
it was on a concrete driveway. Im suprised it actually had some voltage to be honest.
alex
Posted: Mon Feb 22, 2010 8:33 pm
by Alex
thanks toonga, some very good info there.
alex
Posted: Sun Feb 28, 2010 8:40 pm
by El_Freddo
So did it charge up and hold ok?
Cheers
Bennie
Posted: Sun Feb 28, 2010 9:43 pm
by mattl200
AlpineRaven wrote:if it was a flat battery you have a very small chance to get it charged up again, also how did you store it? if you stored it on cement, it drains battery quicker, if you store the battery off cement on block of wood its okay.. normally they can be stored upto 6 mths without charging otherwise it will go flat.
Cheers
AP
its not acually the cement that kills the battery its the ambent temp around it
cement is used as an example because it holds temperature and takes a long time to warm up over night
if it was stored on a driveway in a hot climate the effects would be far less than if i left a battery on my driveway for the winter down here in tassie
Posted: Sun Feb 28, 2010 9:51 pm
by El_Freddo
mattl200 wrote:its not acually the cement that kills the battery its the ambent temp around it
cement is used as an example because it holds temperature and takes a long time to warm up over night
if it was stored on a driveway in a hot climate the effects would be far less than if i left a battery on my driveway for the winter down here in tassie
Originally this was due to the outter casing being made of some composite that allowed the battery's charge to escape through the cement. I can't remember what it was made off but it was an old family friend that told me this is how it came about that you don't store batteries on cement directly.
The temp change thing makes sense though. On bush mechanics the aborigines "charged" a battery by the fire before they were able to start their car...
Cheers
Bennie