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Battery Charging help

Posted: Sun Jun 28, 2009 12:59 pm
by ducati_paul
I want to charge a battery on one of my bikes, but the Auto charger I have keeps telling me it's a 6Volt battery and it's fully charged, my Multimeter is telling me it has just over 4 volts in it but it's a 12 volt battery! I have only disconnected the earth lead to charge it. HELP!!! :?

Re: Battery Charging help

Posted: Sun Jun 28, 2009 1:13 pm
by robracer
Sounds like the battery could be dead, or at lease some cells.
I have a client that sells bike batteries, give me the details & I will price one up for you..... I have to go see him tomorrow anyway.

Will need outer dimensions terminal rotation & any code on the existing battery

Re: Battery Charging help

Posted: Sun Jun 28, 2009 3:54 pm
by seiko1
Take it right out.
Is it dry or wet?
May need topping up with distilled water you can get from the servo :D

Re: Battery Charging help

Posted: Sun Jun 28, 2009 4:02 pm
by robracer
seiko1 wrote:May need topping up with distilled water you can get from the servo :D
Woolies or coles too 8)
Problem is if its a wet Battery & has run dry the cells can be damaged.
Paul have you used tha charger on another battery to see if you get the same result?

Re: Battery Charging help

Posted: Sun Jun 28, 2009 6:24 pm
by ducati_paul
I've tried 3 batteries and 2 give the same result, but that does't really suprise me :roll: Thanks Rob but I'll just go to KMart and get a battery from there! ;)

Re: Battery Charging help

Posted: Sun Jun 28, 2009 7:06 pm
by seiko1
ducati_paul wrote:I've tried 3 batteries and 2 give the same result, but that does't really suprise me :roll: Thanks Rob but I'll just go to KMart and get a battery from there! ;)
A Bike Battery at K-Mart :?

Re: Battery Charging help

Posted: Sun Jun 28, 2009 7:32 pm
by ducati_paul
seiko1 wrote:
ducati_paul wrote:I've tried 3 batteries and 2 give the same result, but that does't really suprise me :roll: Thanks Rob but I'll just go to KMart and get a battery from there! ;)
A Bike Battery at K-Mart :?
Yup! Yuasa :D

Re: Battery Charging help

Posted: Sun Jun 28, 2009 8:05 pm
by seiko1
ducati_paul wrote:
seiko1 wrote:
ducati_paul wrote:I've tried 3 batteries and 2 give the same result, but that does't really suprise me :roll: Thanks Rob but I'll just go to KMart and get a battery from there! ;)
A Bike Battery at K-Mart :?
Yup! Yuasa :D
Shit I never knew that :? :shock:

Re: Battery Charging help

Posted: Sun Jun 28, 2009 10:21 pm
by Gosling1
Steve - SuperCheap also have a pretty good range of bike batteries these days :kuda: I didn't know that K-Mart did as well :shock:

DP - sounds to me like a couple of cells in that battery have sulphated badly - so they are effectively *dead* and the charger cannot fix them.

If you can get to a place like Battery World (or some of the larger auto-chains) - look for a product called " Inox Battery Conditioner" - its a cadmium sulphate solution, and it can reverse the chemical reaction in the cells that have sulphated - and bring your battery back to life. If the cells are fully 'white' from sulphation, it may not revive the battery - but it can fix cells that only have a white 'spot' showing.

I have revived a lot of older batteries with this stuff - the trick is to keep batteries charged all the time - letting them discharge to low, will fuck them every time.

8)

Re: Battery Charging help

Posted: Mon Jun 29, 2009 12:36 am
by seiko1
That stuff works well, I put it in all my batteries as soon as Winter hits and I aviod the usual
"Death by Cold" effect I used to cop every Winter :D
Jesus, everyday shops stocking Bike Batteries :shock: , next thing you know they'll be treating us as Humans :D