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Old 12-28-2014, 11:31 PM   #1
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wanderso's Avatar
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Tempest AGM battery?

I ran across this battery when researching AGMs or flooded cell to replace my existing batteries in my RV. I currently have group 27 size flooded cell (Costco) that the prior owner installed and I'm not happy with the battery life.

This AGM is a 110 amp hour 12 volt battery for $220. Similar warranty and spec as the lifeline GPL 31t, supposedly manufactured in California, $160 less per battery and it seems that the threaded terminal will still work for replacing existing connections.

Any experience and thoughts? This is a true deep cycle agm.

In my case the Lifeline 30 series is too tall. I have group 37's and the dimensions of the Trojan 30XHS will just fit into my space for 2 batteries. Unfortunately Golf cart batteries are 1/2 inch too tall and I don't want to cut the fiberglass on my rig or remove the battery drawer to make them fit.

I would get more amp hours out of the Trojan battery in this case, albeit not in an AGM. Basically the thought is if $31 more for 30 less amp hours but stepping up to AGM is worth it or if stepping up should only mean paying the premium for lifeline.

I realize of course that one company here is marketing to mobility devices while the other has an area of focus on our market.

TD100-12 - 12 Volts 100 Ah Deep Cycle AGM Battery

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Old 12-29-2014, 04:34 AM   #2
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110 amp hours is closer to a Group 29 than a 31 (31 is 130)

YOu could go with a pair of six volt GC-2 Deep cycle Golf car batteries, these are flooded wet cells but 220-230 amp hours makes them the same capacity as your 110 amp hour AGM's when paired. And likely less than half the cost.

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Old 12-29-2014, 06:41 AM   #3
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I went with non "lifeline" AGM batteries and I'm very happy with my batteries. I suspect others may see these and give them a try. If you included shipping when comparing I would spend the extra $31 dollars to go with AGM'S.
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Old 12-29-2014, 07:08 AM   #4
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Sorry - I meant group 27 were my current batteries, not group 37. On the question of GC2s (golf cart), it appears thus far that every one I've found is at least 1/2" too tall for my battery compartment. I would have to give up the battery drawer/slide to make them fit. I do have some width that allows for a bit bigger battery as long as it is about 10.25" tall or less and not wider than 7.25" each. Some 30's and 31's fit if they aren't too tall, but it varies by brand.
History: '08 View, '05 Chinook, '01 Jamboree 24D, '78 Apache Popup, 81 Komfort Tlr,
84 Mazda B2000 'w canopy,
Tent from wedding shower in '96
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