FYI, I was in need of a new Battery and found a Battery Tender Lithium Battery at my local shop. 150$ for this light weight batt; 240 CCa, which is slightly less than the Shorai. Nice thing is any Battery Tender charger will work with it as long as it doesn't anti sulphate. I hooked it up to my 916 and it started promptly; next test will be on the 1098.