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 > Battery charging question.

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wanderingaimlessly

Kerr Reservoir

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Posted: 09/09/22 04:33pm Link  |  Quote  |  Print  |  Notify Moderator

I bought a used mobility chair for M'lady, it runs well, but will not charge from the plug on the column. Fuses are good and I dont have time to sit and troubleshoot right now.
It is powered by 2 12 volt deep cycle batteries wired in series.
I have tried charging the batteries individually and they accept a charge, and stickers show them to only be a year old. Rather than fight the entire issue now, I was thinking I could connect a small charger to one battery at a time,,,,,,, or maybe just one period.
If I slow charge one battery from a pair wired in series, will the other also be charged over time? Or must I set up individual charge points for both? It only gets used once every couple of weeks, so I thought maybe I could have one slowly charge the other?

pianotuna

Regina, SK, Canada

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Posted: 09/10/22 11:20am Link  |  Quote  |  Print  |  Notify Moderator

Hi,

There are 24 volt chargers available.

Since the batteries are in series, two 12 volt chargers would be needed.

* This post was edited 09/10/22 11:29am by pianotuna *


Regards, Don
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Grit dog

Black Diamond, WA

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Posted: 09/10/22 02:07pm Link  |  Quote  |  Print  |  Notify Moderator

You can’t hook to “1 battery” if they’re in series.


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KD4UPL

Swoope, VA

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Posted: 09/10/22 02:37pm Link  |  Quote  |  Print  |  Notify Moderator

Charging one of a series pair will never charge the other at all.

wa8yxm

Davison Michigan (East of Flint)

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Posted: 09/10/22 04:31pm Link  |  Quote  |  Print  |  Notify Moderator

Folks here is what I read
Charge one (Of the two 12 volt batteries in series) Then the other.

Or you could remove them re-wire in parallel and charge 'em both together. then re-wire in series to operate (Did that in fact).

You said "but will not charge from the plug on the column."

Which column? If you mean the park's 20 amp outlet.. Might be disconnected inside the box (Use a 3-light tester to insure it has power) (you should be using one of those on the RV every time you plug in).

If there is a socket on the control column on the scooter that you are supposed to plug into.. Check to see if there is also a socket on the battery box.

You might also want to volt-meter the charger (50 volt range on the meter if you choose or auto-range if it does that).

Possible the charger is kaput.


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Skibane

San Antonio, TX

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Posted: 09/10/22 04:32pm Link  |  Quote  |  Print  |  Notify Moderator

If you're using a 12 volt charger, you'll need to charge them one at a time.

wanderingaimlessly

Kerr Reservoir

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Posted: 09/10/22 05:06pm Link  |  Quote  |  Print  |  Notify Moderator

Have charged them separately, was wondering if charging just one would cause a slow equalization with the other.
The charger is good, I have 2, I may make a second plug rather than tearing the scooter apart.
Thanks for answering the charge one question.

wa8yxm

Davison Michigan (East of Flint)

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Posted: 09/11/22 02:26pm Link  |  Quote  |  Print  |  Notify Moderator

If the charger is known to be good.. I will say again.> Many of these scooters the battery assembly has a 2nd charge port (That way if you have two batteries you can charge one while using the other).. Try the charge port ON THE BATTERY.

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