Thank you gentlemen for this wealth of info. As far as I have researched all LifePo4 manufacturers are recommending extremely small sizes for replacement on their websites. Probably to hide the price difference from the older tech batteries. EarthX recommends an EarthX18 for my 1200GSA. I have the EarthX24 on duty for about two months. Besides the ABS unit failing on first start up I had no further issues. Your posts have made me wary of using it anymore.