Gel-Cel Charging

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Gel-Cel Charging

Postby Spadinator » Thu Nov 02, 2006 11:16 pm

Hey all you electrical experts!!! My batteries in my TD are two 12v 7ah Gel-Cel batteries running parallel. Can I charge these with my automotive trickle charger?
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Postby PaulC » Fri Nov 03, 2006 12:46 am

NUP!!!

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Gel batteries require a special charger and WHY so small. 7A.H. is one tiny battery even when doubled
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Postby Spadinator » Fri Nov 03, 2006 1:07 am

They were free.......and they have been powering my lights for about 6 months now and I haven't charged them. They were from an old electric scooter. :thumbsup:
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Postby madjack » Fri Nov 03, 2006 1:10 am

Spad...gels do take a specific type of charger...many of your newer chargers will do all types...you would have to check with the charger manufacturer to be sure one way or another...
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Postby Spadinator » Fri Nov 03, 2006 1:55 am

OK thanks guys....I will have to look at my Charger to see if it is up to the task. I do have the original charger for the batteries but it is a 24v system.
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Postby Dale M. » Fri Nov 03, 2006 12:01 pm

IF you limit current flow to about 10 percent of amp hour rating of battery You probaly will not get into any trouble....

So your two batteries in parallel is about 14ah, you can charge at about 1.4 ah and not have a problem...

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Re: Gel-Cel Charging

Postby Chuck Craven » Fri Nov 03, 2006 6:03 pm

Spadinator wrote:Hey all you electrical experts!!! My batteries in my TD are two 12v 7ah Gel-Cel batteries running parallel. Can I charge these with my automotive trickle charger?


Besides the special charger the batteries are not deep cycle rated. If you use them as deep cycle they will go dead very quickly. They are designed for like emergency lighting or UPS for computers. Most of there life, they are just in float / maintained charged. Only in an emergency will they power some device for a short time. If they are discharged the batteries will probably not recharge, unless they are fairly new batteries. :o

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Postby Gerdo » Sun Nov 05, 2006 7:29 pm

Go to Batteries Plus and buy a charger for $25. http://www.batteriesplus.com/showcatego ... d-Chargers
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Postby Spadinator » Sun Nov 05, 2006 9:14 pm

I went out and looked at the batteries amd they actually say Sealed Lead Acid.....are those different then the Gel-Cel? :thinking:
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Postby PaulC » Sun Nov 05, 2006 9:24 pm

Spad, sealed lead acid is not gel cell in my book. That is a standard type battery without caps. You should be able to use a standard battery charger on them.
They would be marked gel cell if that's what they are.

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Postby Spadinator » Sun Nov 05, 2006 9:27 pm

WHO ME?? :oops: :cheerswine: Thanks Paul
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Postby Gerdo » Sun Nov 05, 2006 9:49 pm

Are your batteries like these? http://www.batteriesplus.com/products/6 ... H-120.aspx My guess would be that you would want a 500ma charger for a 7 amp sealed lead acid batteries. There are differences in a gel and non-gel, but they both take a small charger. If you charge with too high of an amp rating the battery could cook or explode. I would take a battery to a battery store and ask for the right charger.
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Postby Spadinator » Sun Nov 05, 2006 11:52 pm

This what they are....http://www.allelectronics.com/cgi-bin/item/GC-1271/160400/12V_7AH_SEALED_LEAD-ACID_BATTERY,_W__WIRE_LEADS_.html They were in a scooter that we could run for about 4 days with out charging.
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Postby Gerdo » Mon Nov 06, 2006 10:59 am

Do not use you car battery charger. Contact the supplier of the battery and get one of those small chargers. It will be cheap. I'm looking at the same battery for my Ultra-Light TD (planing stages).
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Postby Spadinator » Mon Nov 06, 2006 1:11 pm

Ok...Thanks for all the tips every one! :thumbsup:
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