Author Topic: Recommendation on a deep cycle group 78 battery?  (Read 2301 times)

Offline slingblade

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Recommendation on a deep cycle group 78 battery?
« on: November 16, 2016, 01:02:44 PM »
I'm installing it as a secondary battery in my SUV with an isolator.  Anyone have a recommendation on a brand?  Experiences?

Offline Carl

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Re: Recommendation on a deep cycle group 78 battery?
« Reply #1 on: November 16, 2016, 01:42:08 PM »
OPTIMA yellow top groupe 78 . I have used optima for some time with tough design and over 10 year average life in actual use.

nkawtg

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Re: Recommendation on a deep cycle group 78 battery?
« Reply #2 on: November 16, 2016, 03:15:24 PM »
Optima is a good one.
Some years ago I would have recommended the Sears Die Hard Platinum, but they're not as good as they once were.

Offline NWPilgrim

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Re: Recommendation on a deep cycle group 78 battery?
« Reply #3 on: January 16, 2017, 02:12:18 PM »
Late to this thread, but also recommend the Optima Yellow or Blue top (marine).  I looked into the equivalent Exide AGM batteries but they are more expensive.  Optima uses pure lead, not lead alloy as most batteries have, so the spiral-wound plates can be thinner giving more surface area.  Exide has a pure lead battery but it is about 50% more than the Optima.

My two heavy duty flooded batteries in my diesel truck just died and I replaced them with Optima yellow tops.  Man, what power on the start in 20F temp!  I've used Optima and Exide AGM batteries in other vehicles and they seem to have more reserve and are much less impacted by low temps than normal flooded batteries.