12 volt battery question

bookum1@yahoo.com · 12-20-2010, 09:49 AM

A buddy of mine is upgrading a backup power source at his job and he replacing about 100 12volt deep cycle batteries, some of which are only a couple of months old. My question is can I use 8 12volt batteries rigging 2 in parrallel making 4 sources of 12 volts totaling 48volts? They are gell cell batteries an I really hate for them to go to waste. I have an 01 EZ-GO with a 502-1 motor and a alltrax controller. It's rigged for 36 volts, but I was planning to go to 48 volts anyway

Any help would be greatly appreciated.

mauistardog · 12-20-2010, 02:42 PM

Wow..I would love to have access to batteries like that !! In theory yes. What is the amp hour rating on the batteries ? Why not go to 72v or 96v if ya gonna upgrade. My next project is gonna be that..as soon as the wife lets me get anther project car :-). Check over or post over at extreme DC thread. chances are someone has done something like you want.
joe

bookum1@yahoo.com · 12-20-2010, 04:26 PM

I have a setup that can go up to 48 volt. I know I will have to upgrade my charger. Will a 48 volt charger work on that system?

gornoman · 12-20-2010, 06:23 PM

If you go forward with this a common golf cart charger is not correct for that battery type.

bookum1@yahoo.com · 12-20-2010, 06:38 PM

What sort of charger would be required?

gornoman · 12-20-2010, 06:57 PM

Quote:

Originally Posted by bookum1@yahoo.com

What sort of charger would be required?

A charger that is optimized for gell cell batteries. Your typical transformer charger will destroy those cells OR not bring them up to spec properly. Either way, it would need to be replaced.

mauistardog · 12-20-2010, 07:35 PM

http://www.batterystuff.com/battery-...l/ICS4820.html

I did a quick search and found this. I am sure there are others. Just search. Sounds like a fun project.
joe

bookum1@yahoo.com · 12-20-2010, 10:18 PM

I have a 36 volt charger for my current system. Just out of curiosity... If I sell it, what should I ask for it? It's a power wiz charger that came with my ezgo cart

gornoman · 12-20-2010, 10:21 PM

Before you start shopping for an appropriate charger, post some specs on these free batteries. They may be totally inappropriate for a cart.

bookum1@yahoo.com · 12-20-2010, 10:29 PM

The batteries are out of a UPS system. They are the correct size. They are Gell Cell 400 amp batteries. That's all I know. Is there anything else I should check on?

12-20-2010, 09:49 AM	#1
bookum1@yahoo.com Getting Wild Join Date: Jun 2009 Location: Louisiana Posts: 117	12 volt battery question A buddy of mine is upgrading a backup power source at his job and he replacing about 100 12volt deep cycle batteries, some of which are only a couple of months old. My question is can I use 8 12volt batteries rigging 2 in parrallel making 4 sources of 12 volts totaling 48volts? They are gell cell batteries an I really hate for them to go to waste. I have an 01 EZ-GO with a 502-1 motor and a alltrax controller. It's rigged for 36 volts, but I was planning to go to 48 volts anyway Any help would be greatly appreciated.

12-20-2010, 02:42 PM	#2
mauistardog Gone Wild Join Date: Dec 2009 Location: Waihee, Maui, Hawaii Posts: 262	Re: 12 volt battery question Wow..I would love to have access to batteries like that !! In theory yes. What is the amp hour rating on the batteries ? Why not go to 72v or 96v if ya gonna upgrade. My next project is gonna be that..as soon as the wife lets me get anther project car :-). Check over or post over at extreme DC thread. chances are someone has done something like you want. joe

12-20-2010, 04:26 PM	#3
bookum1@yahoo.com Getting Wild Join Date: Jun 2009 Location: Louisiana Posts: 117	Re: 12 volt battery question I have a setup that can go up to 48 volt. I know I will have to upgrade my charger. Will a 48 volt charger work on that system?

12-20-2010, 06:23 PM	#4
gornoman Stay thirsty my friends! Join Date: Jan 2007 Location: Suburban Chicago Posts: 24,291	Re: 12 volt battery question If you go forward with this a common golf cart charger is not correct for that battery type.

12-20-2010, 06:38 PM	#5
bookum1@yahoo.com Getting Wild Join Date: Jun 2009 Location: Louisiana Posts: 117	Re: 12 volt battery question What sort of charger would be required?

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12-20-2010, 07:35 PM	#7
mauistardog Gone Wild Join Date: Dec 2009 Location: Waihee, Maui, Hawaii Posts: 262	Re: 12 volt battery question http://www.batterystuff.com/battery-...l/ICS4820.html I did a quick search and found this. I am sure there are others. Just search. Sounds like a fun project. joe

12-20-2010, 10:18 PM	#8
bookum1@yahoo.com Getting Wild Join Date: Jun 2009 Location: Louisiana Posts: 117	Re: 12 volt battery question I have a 36 volt charger for my current system. Just out of curiosity... If I sell it, what should I ask for it? It's a power wiz charger that came with my ezgo cart

12-20-2010, 10:21 PM	#9
gornoman Stay thirsty my friends! Join Date: Jan 2007 Location: Suburban Chicago Posts: 24,291	Re: 12 volt battery question Before you start shopping for an appropriate charger, post some specs on these free batteries. They may be totally inappropriate for a cart.

12-20-2010, 10:29 PM	#10
bookum1@yahoo.com Getting Wild Join Date: Jun 2009 Location: Louisiana Posts: 117	Re: 12 volt battery question The batteries are out of a UPS system. They are the correct size. They are Gell Cell 400 amp batteries. That's all I know. Is there anything else I should check on?

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