Join Date: Apr 2007
Location: Scottsdale, AZ, USA
I had a ten-or-more year old Battery Tender I used generously over the time I owned, connected to the pigtail which I mounted to the battery posts.
When I acquired my '07 F800S, I called Battery Tender (was Deltrans) after calling the dealer about what kind of battery I had.
They told me 1) because my F800S had an AGM battery, I would use a different kind of charger then a gel battery would. and 2) once connected to the battery, the bike does not care what kind of charger is connected so long as it is a trickle one.
The BMW charger at the first link you show, is a BMW OEM-made Battery Tender that MUST be connected to the battery. The second charger is the one for the Canbus system, AND IT CONNECTED TO THE CANBUS SOCKET ON THE BIKE.
If you want that convenience, buy #2! If you are willing to connect the pigtail to your battery buy a Battery Tender made for your battery type (call Battery Tender and ask them).
If I had to do all over again, I might have bought #2, but my dealer told me it was a $300+ item; vs. a $39.95 upgrade of my Battery Tender (they do that, even on a ten or more year old BT). On the other hand, the dealer service department did a slick job mounting the pigtail for me; because my battery is not under seat, the pigtail was too short to reach under the seat. The service guy cut the cables, used nice cabling as an insert and heat crimped an extension to it in, so it now does. It works, but a socket plug-in might be better.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, MOA 24434, started in '68 on Dad's R50/2. It was mine later.