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Old 04-18-2019, 12:57 PM   #1
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Batteries

Can I replace a size 24 house battery with a size 27 with no problems?
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Old 04-18-2019, 01:04 PM   #2
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Can I replace a size 24 house battery with a size 27 with no problems?
As long as you have room for it, or can make room, there is no problem.
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Old 04-18-2019, 02:23 PM   #3
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electrically no problem. make sure you have room for the larger size of the group 27 and check the battery terminals to make sure they are compatible with your existing cables.
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Old 04-18-2019, 02:31 PM   #4
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Yes, yes you can. You can even use a group 31 if you have room.
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Old 04-18-2019, 03:33 PM   #5
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Quick question while you’re all talking batteries.....

I just replaced my group 24 dual cycle batteries which needed water when required, and we’re difficult to work on under the steps.

We almost NEVER dry camp, so I replaced the two batteries with maintenance free (no caps) Group 24 cranking batteries. I know that limits our staying power, but we’re ok with that.

Sound right?
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Old 04-18-2019, 05:25 PM   #6
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Don't draw those cranking batteries down less than 60% charged if you want them to last at all.
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Old 04-18-2019, 05:59 PM   #7
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Originally Posted by kenandterry View Post
Quick question while you’re all talking batteries.....

I just replaced my group 24 dual cycle batteries which needed water when required, and we’re difficult to work on under the steps.

We almost NEVER dry camp, so I replaced the two batteries with maintenance free (no caps) Group 24 cranking batteries. I know that limits our staying power, but we’re ok with that.

Sound right?
Cranking batteries are a poor choice. They don't handle much discharge well. They are designed to crank over an engine and then get immediately charged back up. A deep discharge will kill them fast.

If you don't want maintenance, switch to an AGM battery.
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Old 04-18-2019, 06:24 PM   #8
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Bigger is better.

Measure carefully the demensions of the box or boxes. Measure height. Cram that box full.

Deep cycle work best. Costco sells 2 six volts for $200. 230 or so amps.

Six volts are more durable.

How many amps you can store relates to,the volume of the battery sort of.

I always used six volts in my British cars. Gave better balance with two. Yea right, makes a difference. But, they normally lasted 8-10 years.
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Old 04-18-2019, 06:29 PM   #9
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Six volts are more durable.
That depends. A 6V Trojan and a 12V Trojan deep discharge will have equal durability. If you look at their discharge vs capacity charts, they are identical.
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Old 04-18-2019, 07:36 PM   #10
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I was just on the Trojan site. Curious as I have read otherwise.

It appears to me in the signature series that 6 volt batteries generally have a double cycle life on their graph? Notice the red and gold lines and references to the individual batteries. Red is six volt. Gold, the lower one is 12 volt. 1500/3000. 40% I think.

I have read recently others state that.

On the table listing they carry similar warranty’s. 600/1200 cycles. But the curve says otherwise.
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