Very strange. Sounds like the battery itself is fine but the software controlling it is suspect. I would suggest contacting the manufacturers to confirm how it should work. A conditioner when not in use for an odd week or two should not be necessary.

I would also mention to the manufacturers the crude current dumping motorcycle charge system you have on the S & S engine. 14.4 volts is the correct regulated charge voltage once above idle, but it seems your new battery didn't like it or the charge system couldn't cope!

The M3W factory fit battery at 30 amp/hrs is inadequate long term, but there are plenty of higher capacity slightly taller lead/acid ones at a fraction of that crazy price.

Last edited by Richard Wood; 11/08/19 07:36 AM.

Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone