Forum Discussion

KATOOM's avatar
KATOOM
Explorer
Jan 11, 2016

Looking for some help deciding on which batteries.....

I am replacing my current two RV/Marine batteries since they're about 5-6 years old and arent holding much of a charge anymore.

I have a couple local choices for batteries and I was looking for opinions on the few options I have.

I can pick up a couple 6 volt Trojan T-105's for about $180 each.
Specs are 225 amp hr @ 20 hr / 185 amp hr @ 5 hr

Or I can get a couple 12 volt Exide deep cycle for around $100 each.
Spec are 105 amp hr @ 20 hr / no other data

Or the AGM batteries around here are very expensive at $190+ each.
Specs are 95 amp hr @ 20 hr / 78 amp hr @ 5 hr

So..... I'm going to throw a guess out there that the Trojan's are the best bet but I just wanted to be sure what you all think before I make any rash decisions. Unless someone has some better ideas. :B

85 Replies

  • If cost seems important you may as well go with Exide.
    Spend the savings on solar if you do not already have 200+ watts.
  • I bought 2 lifeline batteries last year 6v. Price sucked but I don't worry about boil overs anymore and a lot less maintenance. There are a lot of options but I liked the lifelines
  • KATOOM wrote:
    I am replacing my current two RV/Marine batteries since they're about 5-6 years old and arent holding much of a charge anymore.

    So..... I'm going to throw a guess out there that the Trojan's are the best bet but I just wanted to be sure what you all think before I make any rash decisions. Unless someone has some better ideas. :B


    Oh boy, here we go again. :R A "better idea" would have been to do a quick forum search which would have instantly turned up this recent discussion on the exact same topic. Read that and you should realize no one can tell which battery is "best" as it depends so much on how you intend to use those batteries, the equipment you have to properly maintain them, and the physical space you have available for mounting them.
  • Check out VMaxx... a pair of 6V 225ah AGM will set you back ~$500
    I'd pay the extra money not to worry about gassing & filling with water...

    They have 10% off, free shipping and possibly no sales tax...

    http://www.vmaxtanks.com/V6-225-6Volts-225AH-Deep-Cycle-High-performance-AGM-Battery-_p_48.html
  • Seems that most advice around here goes to the 6V batteries as being better than the 12V.