Cobaltchat.com

2024 R8 Surf- First time sitting with stereo playing for extended time, 3 hours- tried to start and dead battery. Switched to second battery setting and still nothing, odd the first battery dead after 2-3 hours of playing, even odder second battery didn't start. Jump started or easy w another boat

Suggestions ?

Sounds like the ACR isn't working correctly, or not hooked up correctly. At least I assume there is an ACR, with that new/caliber of boat.

How do you have your battery switch set? OFF - ON - COMBINE. There is no bat1 or bat2 with an ACR.