Normal for dealer to install Battery Tender dongle?
I went out to install my battery tender dongle today and noticed that someone already put on on. I bought the bike brand new around 2 months ago and it only had 6 or 7 miles on it. Why would a dealer install just the dongle and not give the charger to the customer?
Perhaps there was a prior deal on this bike which fell through and part of it was the installation to which you refer. If it were me, I would buy a battery tender and have done with the matter. On the other hand perhaps there is a tender is at the dealer which goes with this bike. Why not ask them?
Make sure that you keep a log of Charging your Battery at least once a month. BMW has a thing about warranty on the battery unless you can show a log of monthly charging. Now you know....