Battery Size
My 2010 RTV 900 call for a Group 21R size battery. I also had written down that alternate sizes were 24F and 26R. I posted the following in February of this year about replacing my OEM battery with an AGM battery. I haven't done it yet, but here is what I said:
(Posted 2/7/15)
I'm one of these who doesn't like to let my batteries get too old even though they seem to be working OK. So the original battery in my 2010 RTV 900 is about 5 years old. I have had no problems, but decided to research to see what I could replace it with something bigger and better than OEM.
I just recently replaced the battery on my Chevy 2500HD 4WD 496 CI gas engine with a Auto Zone Duralast Platinum AGM Battery and there was a noticeable difference in the cold starting power compared to the standard lead acid battery.
The bottom of my RTV 900 battery compartment measures 9" long X 7 7/8" wide. The OEM battery, a group 26R size, is mounted with both terminals towards the back of the machine, negative terminal to the outside. Auto Zone has an AGM platinum battery that will fit in that compartment, but will require a few modifications. I don't believe the anchor bracket will work and the terminals will be in a different position because the battery will have to be turned 90 degrees from the OEM style. The cable coming from the alternator may have to be re-routed.
I went by Auto Zone today and measured the battery which turned out to be different than the specs:
Length: 8 3/4"
Width: 6 1/2"
Height: 7 3/4" (including terminals)
The AGM battery has 680CCA compared to the 540CCA on the OEM, in addition to the other advantages, One being the ability to run electrical accessories longer without the engine running. The link below list the advantages and the specs.
The big minus is the cost: $174 with exchange
Any comments would be appreciated.
http://www.autozone.com/batteries-st...19480_0_46205/