There is dead and there is dead. If a battery is discharged, it's at or below 9 volts. I don't know what the threshold voltage for the electronic systems on the
R3 is, but on a Caterpillar engine, anything less than 9 volts and the computer goes to sleep.
I just replaced the battery in the Bonnie with an AGM but the battery in the
R3 will be a Hawker as well as the KLR. No, not hocker, Hawker.
Too bad Johnson Controls don't make small Optima's.