Any Tricks For Breathing Life Into Old 12v Batteries?

[chesters1 1224]

24v?

[corydoras 388]

Probably not the same type of use ,car batteries are designed to give big amps for a short period and deep cycle ones small amps for a long while .

Car batteries cannot take their volts taking down under 12.5 ish without stressing the plates whereas deep cycle ones can

I doubt grannie or kids will monitor the volts so a car battery wont enjoy the outings lol

 

The old trick of using high volts at low amps works for nicads but modern charges use high frequency to desulphate car batteries .

Sometimes lithium batteries go so low the protection circuit cuts in and they cannot be recharged ,plugging in their charger lots of times for 5 seconds a go trick it into charging again but it could take a few hours of doing it!

Or just bypass the protection circuitry.

[chesters1 1224]

Or just bypass the protection circuitry.

In 18650 easy !in built in batteries in tablets not so

[Phone 525]

Elton,

 

Stand clear and unplug at the electrical source and wait a minute or so. "Rednecking" batteries can be tricky, especially sealed.

 

You may have stumbled on your solution? In the day, my big trucks were 24 volt in series of 6 or 8 batteries. In the UK what is the electrical system on your big rigs?

 

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[ayjay 441]

how much £ for the proper battery is too much £ re what he paid for the scooter??

 

My wife's scooter takes two 12v 75amp batteries - £234 per pair, and that's eBay not OEM.

[Phone 525]

Elton,

 

Ayjay,

 

It's written on the (old) battery itself. It's not amperes it's Ah. Current consumption depends on the load. The battery itself only supplies voltage.

For example: A typical specification of battery is 12V - 7Ah. If your load is consuming 1A current, then it will last for 7 hours. If you have a 10Ah battery means you can draw steady current of 10 A for an hour.

 

See if the battery doesn't say "Ah" Ayjay. 75Ah would give her considerable power range.

[ayjay 441]

Ayjay,

 

It's written on the (old) battery itself. It's not amperes it's Ah.

 

See if the battery doesn't say "Ah" Ayjay. 75Ah would give her considerable power range.

 

I don't need to look, I know you're correct. (it had to happen some time. ) . I blame Chesters, he started calling them amps.

[chesters1 1224]

Short the + & - together it will be crude amps melting that wire!

Heres the difference between car batteries and leisure batteries

https://www.yuasa.co.uk/info/technical/understanding-leisure-batteries/

Edited June 30 by chesters1

[Phone 525]

ayjay,

 

I also believe I have discovered a way to post my personal pictures on AN. I can post to FaceBook and then copy and paste to AN. Worked once.

 

I then shall endeavoUr to show up the "doubting Thomas'" with my quill pictures. However, I can now fish this very urban pond with my own creation of ULTRA ultra light kit. The quills sucked (as in didn't work) although I take full responsibility for their failure.

 

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[Phone 525]

Chesters1,

 

Faux nonsense from you in a feeble defence for such a serious mis-identification.

 

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