In reading the owner's manual for the new RT, it states that you cannot use non-BMW battery chargers connected to the accessory socket. I've always used a Battery Tender Junior for my old RT. The dealer installed a cable directly to the battery so that his customers can use the Battery Tender w/o buying an expensive BMW charger. The owners manual also says that if you're charging the battery, it should be disconnected from the bike. Dealer says it's not a problem with a trickle charger. Any thoughts?
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Battery Charger for 2010 RT
- Thread starter jeinloes
- Start date
PAULBACH
New member
Not a problem if connected directly to the battery posts. The dealer is right and was very proactive.
The new bikes are best plugged into the Battery Tender after each ride. This prevents the battery from being drawn down in the unlikely event you don't ride the new machine for a few weeks.
The new bikes are best plugged into the Battery Tender after each ride. This prevents the battery from being drawn down in the unlikely event you don't ride the new machine for a few weeks.
marchyman
Cam Killer
You have to understand how manuals are written.
The manual writer gets a bunch of info from the engineering department and then asks questions to fill in the blanks and/or areas not quite understood. The writer's question -- something like "can a non-bmw battery charger harm the bike" -- gets routed to an engineer. The engineer, being an engineer, doesn't work well with absolutes. He can't say yes or no. It's not in his nature. Instead he'll go on about probabilities and the chance that somewhere in the world a cheap charger could skimp on overload protection and what if such a charger were attached to the bike when lightning hits the transformer on the power pole outside the garage? See, there is non-zero probability that the battery could blow up and the bike could get harmed.
After the tech writer wakes up from the coma induced by reading the engineer's very long and involved response the writer distills it into something the average owner can understand, picking the side of safety. "Unhook battery and remove from bike before charging".
And I bet you thought it was because of the lawyers.
