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Old 07-27-2020, 12:02 PM   #31
JohnnieB
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Default Re: Battery info

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Originally Posted by Captain Claptrap View Post
What if you did 2 banks of 3 12's so essentially you have them in parallel. Would that make it a wash and restore the trip capacity of the original 6 in series? Any drawbacks to such a config?
Typically, a 12V cart battery stores 150AH, so a 3S2P pack would be 36V-300AH, or 10.8kWh of storage.
The standard 6V battery used in a 36V pack is 225AH, or 8.1kWh.

Mathematically, that is about 1/3 more storage capacity, which indicates the range and lifespan is roughly 33% longer than 6x6V-225AH pack.

The numbers indicate the 3S2P 12V configuration would more than restore the trip capacity of the original 6x6V pack, but it would weigh about 120 pounds more, so the cart will perform like there is always an extra passenger onboard.

The existing 36V charger will probably work okay.

Keeping them all in balance might be an issue. I'd charge each individually with a 12V charger and pick those with the closest at-rest to make the parallel pair.


--------------
IIRC, someone did this a few years ago, but I don't remember who, or if it worked out okay.
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Old 11-01-2020, 01:52 PM   #32
Derek Diggler
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Default Re: Battery info

2008 Ezgo RXV - I live in Delaware and store my golf cart in my attached garage. What is the proper way to store over the winter? I donít see riding it too much when it gets below 50 degrees. Should I just throw a charge on it once every couple weeks? Do I need to disconnect anything? Just bought it a month and a half ago and it has 4 12v Trojan batteries that are only 1.5 year old, so I want to take care of them. Thanks for your time.
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Old 11-01-2020, 05:28 PM   #33
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Default Re: Battery info

Every two week will be okay, once a month may suffice.
Check the fluid level every month or so. (Add distilled water only and don't over fill)

The batteries typically self-discharge at about 1% per day and you don't want to let them drop below 70%.
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Old 11-01-2020, 09:19 PM   #34
Derek Diggler
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JohnnieB -thanks. I will do that. So no need to disconnect anything at all right? Just do what youíve said. I have been keeping up with the water levels I check them every couple weeks. Thanks again.
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Old 11-02-2020, 01:01 PM   #35
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Default Re: Battery info

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Originally Posted by Derek Diggler View Post
JohnnieB -thanks. I will do that. So no need to disconnect anything at all right? Just do what youíve said. I have been keeping up with the water levels I check them every couple weeks. Thanks again.
Not that I know of, but I'm not an RXV guy, so google RXV storage for better info.
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Old 11-19-2020, 09:48 AM   #36
Coreyw4023
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Default Re: Battery info

What are most people spending on 4 new 12V batterys? Got a quote of 750 for trojans
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Old 11-19-2020, 12:33 PM   #37
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Default Re: Battery info

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What are most people spending on 4 new 12V batterys? Got a quote of 750 for trojans
Battery prices vary by geographic location.

Search online for pricing and you'll find T-1275's from about $175 or less each to over $300 each.
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