I have a red top about a year old and next week will be installing dual battery box. They will be wired parrellel charging together. Can I combine a Yellow top with a Red top? The yellow top is more of a deep cycle of course and red more toward stock. I have a lot of accesories (lights, winch, amps, ect )and think the yellow would be better but would like to only buy one battery for now and get another yellow down the road when budget a little better or ...do I have to buy another red top to match?? Thanks for input.

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04 RENNY/ Totaled RIP.
04 Rubicon soft top. Warn front bumper w 9,000 lb winch. 6 KC lights 4 on bumper 2 on windshield. Warn rear w swingout tire carrier. Warn diff guards. Full skids.Super sliders. 4" lift, terraflex disconnects, Airraid filter. Flood backup lights.Midland CB. Braided brake lines Redtop w dual setup on the way.

way bad idea to mix different types of batteries in a single charging system. The two types of batts have different internal resistance. Since electronis will flow the path of least resistance the charge rates will not be equal. Equal is good.

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2006 CRD http://www.UtahPowderCoatings.com/ http://www.gorecon.com/ I'm kind of a big deal.
RL rear bumper, ARB front bumper, Mile Marker winch, Power Tank, Skids by Mopar & Skid Row, RL Super Skink Sliders, 235/85R16 MTR, Air Flow Snorkel, DTT, 4.10 gears, Frankenlift II, Katskin leather, JL Audio stereo, Rosen video.

I have seen it done, but wouldn't recommend it. I have seed dual battery setups where guys have also had dual alternators... now thats trick.

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04' blue limited edition
Wrapped in Ironman
245/75/16 Khumos (2nd set)

charging resistance makes sense, so i assume the "lower" resistance would get most of the charge. What about wired seperate with an isolater switch? of course guages would be needed to monitor both batts and you have to remember to switch from batt to batt..JL Rockie..i have to agree equel is good. $175 for a batt is alot cheaper than charge system meltdown. thanks for the help. would like to see a pic of dual alt setup..sounds sweet.

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04 RENNY/ Totaled RIP.
04 Rubicon soft top. Warn front bumper w 9,000 lb winch. 6 KC lights 4 on bumper 2 on windshield. Warn rear w swingout tire carrier. Warn diff guards. Full skids.Super sliders. 4" lift, terraflex disconnects, Airraid filter. Flood backup lights.Midland CB. Braided brake lines Redtop w dual setup on the way.

The answer is yes , if you switch them, and charge them individualy, and use them individually, other applications will need the same exact battery right down to the brand.

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“You cannot solve a problem from the same consciousness that created it."

“Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.”

Seems to me that you want 2 reds anyway for this purpose, not 2 yellows. As I understand it, "deep cycle" batteries are designed to better handle alternating periods of discharge, recharge, etc, where the discharge phase REGULARLY uses up a major portion (50-100%) of the available charge. Even with all your accessories, I don't think you'll often drop below 80% on two red tops in most trail riding situations.

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06 Sport stock so far

Here's my setup in Fulltimer's thread.Only difference is that I replaced the red with a yellow.Works great.This is my third setup like this(jeep,56&85 ford picups) with all sorts of battery configurations.
http://www.lostjeeps.com/forum/phpBB3/vie ... 8&start=20

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Bub
06 Inop Edition CRD Silver
06 Inop Edition CRD Green