Batteries

General electrical problems
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simon.holyfield
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Batteries

Post by simon.holyfield »

Calling electrical experts...

I have a plastic box attached to my W/NG, in which are sealed two series connected VRLA batteries. I cannot see anything written on these batteries.

Currently they are showing about 2.5 V. I realize they are probably dead, but I would like to charge them to see if I can resurrect them.

With no markings, how can I tell if they are 6V or 12V?
cheers

Simes

'51 Square Four,
'58 Huntmaster,
'42 W/NG,
'30 Model A
https://ariel-square-four.blogspot.com
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nevhunter
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Re: Batteries

Post by nevhunter »

Since you are getting no answers... If there's some voltage they can't be dead. Charge them with a headlamp globe in series and see what happens. Once they take some charge (if they do) you will get some idea of the voltage they are rated at. Nev
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simon.holyfield
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Re: Batteries

Post by simon.holyfield »

Thanks for the tip Nev. I put another battery in parallel, which got current moving from the charger - all good now.
cheers

Simes

'51 Square Four,
'58 Huntmaster,
'42 W/NG,
'30 Model A
https://ariel-square-four.blogspot.com
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john.nash
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Re: Batteries

Post by john.nash »

Aren't lead acid batteries characterised by the number of cells ?
6v have 3 and 12v have 6...
John Nash
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simon.holyfield
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Re: Batteries

Post by simon.holyfield »

john.nash wrote:Aren't lead acid batteries characterised by the number of cells ?
6v have 3 and 12v have 6...
Yes, but VRLA batteries have no caps on the cells so it's not so obvious. They were the size of a 6V battery though, and they looked like they had 3 cells each, and guess what? They were 6V batteries!
cheers

Simes

'51 Square Four,
'58 Huntmaster,
'42 W/NG,
'30 Model A
https://ariel-square-four.blogspot.com
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