Originally Posted by lbernielu
Probably more than one battery has been specified, such as 70 and 90 ah capacity, AGM and non-AGM. Those batteries are all listed in the required registration that must be programed for proper charging values (there are numerous posts on this subject). I personally have a Deka Exact fit 95? ah AGM replacement, the largest and heaviest possible at 60 odd pounds. The extreme lightweight batteries probably will not last 5 plus years, and may present cold weather starting issues. The weight savings, even if considerable, are not worth the additional cost over several years and loss of reliability to me.
+1. And there are probably 3 or 4 different OEM batteries depending on the OP's equipment, so he really should have a dealer or competent Indy handle it and the registration.