Battery Query - Does the Can-Bus system cause a battery drain?

invalid@example.com (JohnRtl), JohnRtl
Sat, 28 Feb 2026 13:47:02 +0000
RT Shop Talk

I have a new-to-me 2021 RT Limited.
I have an Optimate 4 battery tender which I have used on other bikes - and always put it on charge when it is in the garage.

I have a fused, dual pin connector which is permanently conencted to the battery which I use to plug in the Optimate. When I am riding, it provides the relayed power for various accessories - heated jackets, satnav, on-board video camera, etc. My accessories are therefore completely disconnected when the Optimate is charging.

When...