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Old 10-17-2012, 01:16 AM   #1
Boludo
 
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Default House Battery

So I need to buy a new house battery for my interstate. Are there any strong recommendations on which battery you'd recommend?
Thanks!
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Old 10-17-2012, 12:29 PM   #2
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Default Re: House Battery

I have the rear lounge model and went with Lifeline 24T's because access is impossible without removing the rear seat. If you have the Twin setup, you should consider the Trojan T125 or T105 6V batteries which have considerably more reserve capacity but may require occasional maintenance in checking acid/water levels. Wayneskid has the Twin setup and went with two 6V T125's for much less than two 12V AGM's. I may consider modification of my battery box to allow for easier access enabling the use of the twin 6V series setup. Ben
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Old 10-17-2012, 05:39 PM   #3
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Default Re: House Battery

Thanks for getting back to me. Yes I also have the lounge and am bummed to hear that I need to remove the rear seat. That doesn't sound like much fun.
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Old 10-17-2012, 07:45 PM   #4
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Default Re: House Battery

It's actually not that hard and now I could do it in about 15 minutes, but the batteries are stacked inside the battery box so checking acid/water levels involves taking the top battery out to check the lower one. That's why I went with the AGM'S. Ben
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Old 10-17-2012, 11:42 PM   #5
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Default Re: House Battery

See this post at AirForums about my replacement: http://www.airforums.com/forums/f240...ies-91911.html. I really like having 240Ah vs. the 164Ah of the OEM AGMs. The Lifeline 24Ts are rated at 80Ah so two gives 160Ah. And as Ben points out, they are pretty spendy. The installed price (with some re-cabling needed due to the shift from 2 12v in parallel to 2 6v in series) of my setup was just a little more than 1 24T. But, with the access challenges of the lounge model, it might be worth the extra cost. I would sure hate to looose the extra capacity though. Another thing to keep in mind; the Trojan T-125 + batts are taller (10 11/16")than the AGMs that came out of mine. There was no issue fitting them in the battery box of my Twin model; couldn't say if this might be an issue with the lounge model.

Wayne
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Last edited by wayneskid; 10-17-2012 at 11:52 PM.
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Old 10-18-2012, 12:23 AM   #6
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Default Re: House Battery

Anyone check out Optimas?
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Old 10-18-2012, 01:23 AM   #7
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Default Re: House Battery

I had two Optima's in our last RV, (Roadtrek). The Blue Top only has 50Ah which is really too low for the NCV3 Interstate which has the all electric fridge, (total of only 100Ah with two batteries). I was thinking that the rear lounge models should probably add a third house battery under the hood which one of the members here actually added two 6V batteries. Would be a great idea if you do a lot of boondocking.

Here is the thread: http://sprinter-source.com/forum/sho...highlight=hood
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Last edited by ben322; 10-18-2012 at 01:31 AM. Reason: Added link
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