fonque

I am having trouble finding an AGM battery that will fit my SS.
I know its a group 90 and the size is 9 x 6.5 x 6.5 i believe. I tried a group 48 battery but that was just too large to fit without cutting the little metal tabs out of the back of the hatch where the battery sits.

I was tempted to try a group 24F size battery as that looked close. I was hoping someone on here has an option that fits better.

I cannot find a single group 90 agm battery for sale. Any help is appreciated.

RJ_RS_SS_350

You need to look for group 47. Here is a discussion. https://www.chevyhhr.net/forums/comm...battery-52505/

fonque

thanks for the tip!

donbrew

Group 90 specs a vent tube, so there would be no AGM equivalent.

RJ_RS_SS_350

From AGM Batteries - Batteries by Fisher, paragraph 5.

VRLA batteries attempt to avoid all of these problems by immobilizing the electrolyte. In doing so, the hydrogen is trapped near the plates, and is available for re-combining when the battery is re-charged. This dramatically reduces the water loss during repeated charge/discharge cycles, and generally makes them “maintenance free”. It also reduces the amount of hydrogen build-up to the point that no venting is required, and the batteries can be completely sealed, which in turn allows them to be used in any orientation without fear of spilling.

DrLoch

Correct. They tend to last longer as well. Put one in mine. The one in my Impala SS is 9 years old now, did a load test on it still fine.