My stubborn Sealed lead acid battery refuses to charge!?
Just the day before it was working perfectly fine!
And all of the sudden it doesn't!
Its about 10 Amps and i was planning to use it but know it wont charge.
Its about 2 times wider than those batteries that alarms use(look in that big box in the wall there is a lead acid battery in there) in my case i had 2.
Its kinda like the one in the picture,Except a bit taller
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welder guy
says:
Aug 3, 2009. 8:28 PMReply
i bought a camera from a neighbor and it had two SLA batteries (dead). i decided to take one apart to try a new project and found out why i thaught they werent working. upon opening the battery fully i discoved a greenish / white powder on my chem gloves. i belived that this was the lead acid so to test it i put a tad on my arm and found out good news. it was the lead acid because it burnt like hell like i had read it would. after washing of my arm i decided that the whole thing was stupid and now a breathing hazard because it wasnt a paste anymore like i thaught it used to be when they where new. i ended up buring it in my backyard. so all i could think was that you need to put water in it to let current flow through it and thus charge it.
2
ReCreate (author)
in reply to Aug 3, 2009. 9:17 PMReply
Thanks, I am Warned now to never take an Lead acid battery apart >_<
4
Sparkington
says:
Jan 29, 2009. 1:30 PMReply
Well simple put your battery is dead and need a new one. There are circuits out on the web called battery zapper, which can zap your battery back to life.
2
ReCreate (author)
in reply to Jan 29, 2009. 8:20 PMReply
Also do zappers work for lead acid batts? I thought it was for NI-CD
4
Sparkington
in reply to Jan 29, 2009. 8:25 PMReply
No you can get zapper for seal lead acid batteries, are you sure it a seal lead acid battery. If it a seal lead battery then you do not need add water, due it being sealed.
2
ReCreate (author)
in reply to Jan 29, 2009. 8:33 PMReply
Ahem*cough**cough*
4
Sparkington
in reply to Jan 29, 2009. 8:36 PMReply
lol I have never had to refill a seal lead acid battery before and I didn't knew it was even possible.
2
ReCreate (author)
in reply to Jan 29, 2009. 8:39 PMReply
so is that what i gotta do?
4
Sparkington
in reply to Jan 29, 2009. 8:41 PMReply
Maybe like I said I never refill a seal acid battery, if it didn't work for me I always got a new one.
2
ReCreate (author)
in reply to Jan 29, 2009. 8:18 PMReply
When i shake the battery i hear some rattling inside does that mean i need to add water?
33
Plasmana
in reply to Jan 29, 2009. 5:00 PMReply
The battery zappers don't seem to work for me... It is probably they don't have enough charge to properly zap the battery.
3
12V
in reply to Jun 8, 2009. 8:19 AMReply
use a desulfator (a circuit that pulses 50v at 1khz)or make one!
33
Plasmana
in reply to Jun 13, 2009. 1:11 PMReply
I'll make one from here.
3
12V
in reply to Jun 14, 2009. 1:04 PMReply
that is exactly what i am making. i bought everything from digi-key and it came 2days later - i was expecting it to be 2 weeks!(uk).
33
Plasmana
in reply to Jun 15, 2009. 5:30 PMReply
Cool, that happens to me sometimes... :-D
4
Sparkington
in reply to Jan 29, 2009. 7:51 PMReply
Maybe your battery is beyond zapping. I know this battery are dear. The only way to fix it the problem is to buy a new battery. Also to buy a decant battery charger design to charge seal lead acid battery.
33
Plasmana
says:
Jan 29, 2009. 4:59 PMReply
I have that same problem... :-(
2
ReCreate (author)
says:
Jan 29, 2009. 11:12 AMReply
Also my battery was from a dead UPS
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