Another new battery for the Evo after the Deka ETX16L died – seems like it had one too many discharges after large periods of sitting with no trickle, from when the car was getting repaired. Short update, as much what I posted here still holds. This battery is slightly bigger, slightly more capacity, 1lb heavier. This will  hold for now until I figure out a more permanent solution. Speaking with a company that makes some solid powersports batteries.