Ok the GM battery that came with my H3 is a P.O.S. I want to get an Optima battery. I did a search and I cant figure out what battery I should get. I see people recommend the red and yellow tops and I have seen 2 or 3 different series numbers but I dont know what one I should get. Can anyone recommend one to me? I have a winch, GPS, Sirius sat radio, cell phone and DVD player all running off the system.

Thanks

 

One is a deep cycle, one is not.

If I recall, one can be recharged once FULLY drained, the other cannot.

 

I would get the yellow top, handle more draw than the red top. The stuff you run isn't really that much especially cause I doubt you'll be winching out while listening to sat radio and watching a dvd all while talking on your cell. If you can't find a yellow to fit then a red would also be fine for your needs.

 

Although the Optima are great batteries (I think the Red top is what your are after) But, they are a little too tall for the battery box..Some modifications must be done to make the top fit.

 

the red and yellows are both car/truck batteries and are not deep cycle like a marine battery....that is a blue top. The yelow is a dual purpose battery which mens it is a starting/cranking battery and also a deep cycle to handle winching and stuff when the truck is not running.Yellows are used alotby audiophile's.

 

Thanks for the help guys. I think I will go with the red top 34/78 or 75/25 depending on the cost.

for referance:

RED TOP
MODEL NUMBER 34 & 34R 75/25 34/78 25 & 35
Voltage 12v 12V 12v 12v
Cold Cranking Amps @ 0F 800 720 800 720
Cranking Amps @ 32F 1000 910 1000 910
Reserve Capacity 110 90 110 90
Capacity (C/20 Rate) 50 44 50 44
Internal Resistance (ohms) .0030
PHYSICAL SPECS
Length 10" 9 5/16" 10" 9 5/16"
Width 6 7/8" 6 13/16" 6 7/8" 6 13/16"
Height 7 13/16" 7 5/8" 7 13/16" 7 5/8"
Mimimum Weight (lbs) 37.9 33.1 38.8 31.7
BCI Group 34 & 34R 75/35 34/78 25 & 35

YELLOW TOP
DUAL PURPOSE (STARTING & DEEP CYCLE) BATTERIES
MODEL NUMBER D/78 D75/25 D34 D35 D51 & D51R
PERFORMANCE
Voltage 12v 12V 12v 12v 12v
Cold Cranking Amps @ 0F 750&n

 

I have the red one in the wifes car, a yellow in the Mustang, and will be getting a yellow for the H2.

 

I hve a Yellow Top for my Rig after killing two OEM batteries in a year!![:@]

 

Forget the cell phone.You will drop it while you are offroading. Use the built in speakerphone, it will makewatching the DVD easier.

[8D]
Nova...

 

I'm about to invest in a yellow top for my Mustang. It's the one that is deep cycle and it will withstand more drains than the red top. From what I've heard the red top isn't that much better than an Interstate battery.