Forum Discussion

pira114's avatar
pira114
Explorer II
Sep 10, 2015

Battery question

Thinking of switching out my normal 12v for a Deka 8A8D. This is for some serious boondocking with minimal charging.

They weigh 158lbs. Other than weight and initial cost, what's the downside? Is there anything else I'm not thinking of?
  • westend wrote:
    Price/AH is pretty high compared to other solutions like 2 x AGM 12 V or 2 x 6V. Is your converter up to the task of charging the battery?


    These are the questions I need to figure.

    Price seems ok compared to two AGM (the 8D8A is AGM also) given AH. If we're talking the same brand anyway. Haven't had time to compare several reputable brands.

    Converter. Hmmmmmm. This is why I asked. I'd never have thought a converter would be able to charge a 12v group 31, but not an 8D. They're both 12v, only difference is size and time to charge right? Or wrong?
  • Yeah, that would suck. And it's a good point. Currently, it easily supports the 134lbs of battery when I put two "normal" 12v deep cycles. Mine are 67 lbs each. Is 24 lbs enough of a difference? I don't know, I hope not, but I'll have to figure that out. Or maybe reinforce for good measure. But I think most who have dual set ups, especially GC batteries, are probably fairly close to this weight already.

    So if I discount the weight thing (by reinforcing and distribution of weight on the hitch), is there any downside to using this size battery? I guess I'm wondering if 12v is 12v, regardless of source. And if people don't use these types of batteries because of size and weight alone.
  • Price/AH is pretty high compared to other solutions like 2 x AGM 12 V or 2 x 6V. Is your converter up to the task of charging the battery?
  • I don't know about the electrical part but, will the brackets, or whatever it sits on, support the weight of the new battery?
    Don't forget, it's 158 pounds of static weight. Once you start bouncing down the road, the stress on the battery supports will increase.

    Check it now and reinforce it if needed. That's better than seeing your new battery, in your rear view mirror, bouncing down the road.