Researching batteries

Hi Natt85. Lots of options in choosing a battery. With the addition of a battery change, you might consider installing a battery monitor that is more accurate. This will allow you to respond better to the SoC health of your battery bank. As well a good charging procedure too. These two things will allow your battery bank to perform better and last longer. An important factor when spending big $$ on some of these batteries.

As been earlier stated, having the ability to optimize your battery compartment with a larger battery is a good direction to go. Also, don't hesitate by making your compartment more usable, for larger batteries by removing the tray or expanding the sides by moving the walls, literally.

Another is by changing orientation of your batteries in the bank, with AGM batteries. This is a good link for explaining this further, from one of our RV.net posters here, Mello Mike.

[COLOR=]Lifeline AGM Battery Upgrade Clicky

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I run Lifelines, they are a little more expensive but are designed to last.

Lifeline GPL31XT 12V 125AH AGM in a 24V system. I did not want to mess with watering systems.

As was stated get the biggest AGM battery the you box will hold. I one have Universal group 31 that has worked well for six years. I also have Northstar that is no longer made which is seven years old. Last year I installed a group 24 Universal under the hood of the truck, so far so good.
Check out Best Converter free shipping most of the time.

I'm using a pair of Deka AGM 6 Volt Golf Cart Batteries, they cost me $200 each and they are American made. After going the six volt golf battery route I will never go back to the 12 volt deep cycle type pairs. The AGM type eliminates the need to water them, a big plus if you have poor access.
You can run them way down and the recovery seems to always be 100%, in fact mine test more amps now then the day I bought them.

Having a good multi stage converter/charger is the most important thing to help ensure a long battery life IMHO. My old single stage converter destroyed my first set of wet batteries in a very short time, it would just boil them to death.

My preference: UB121000 100 AH Deep Cycle

I have two SEARS group 31 rv marine AGM's that have supplied us with lots of reliable power. Installed a 4 gauge charge wire to the TC batteries off the truck alternator and through a big constant duty solenoid. One of my best and biggest pay back TC modifications.
There are others that don't justify the cost of AGM and go with 2 wet cell 12 volts and some go with 2 6 volt golf cart batteries.
2 12 volt batteries, you have power if one fails.
2 6 volt golf cart batteries, no power if one fails.
My 2 AGM's were about $500.00 which was an easy yes for me.

Hi,

Given the constraints of the storage space I'd get the biggest meanest deep cycle battery that will fit the enclosure without going over the weight allowance.