F800 Battery Life

[Sebnev]

I've got a F800 bought new in Oct 2012.

I got the dealer to make the alarm turn on automatically when you take the key out rather than press the button. A few months after I bought it I went away and didn't ride the bike for about 8 weeks, then when i tried to fire it up not surprisingly it the battery was completely dead.

I bought an optimate and fully charged it, however in the last couple of months the the battery is flat (not dead but not enough juice to start the engine) after a week of not riding.

Should I expect this as normal, or have I screwed the battery ?

When I do ride I do an hours commute each way.

Anyone know how to reprogram the alarm so I have to turn it on and off on the blipper ? I don't want the alarm running the battery down whilst its sat in my garage....

Thanks.

 

[Richie N]

Your battery will last forever if you use the bike regularly - they do not like not being used. Optimates (or anything similar) do not work over extended periods, I have tried them on bikes and cars, and the result is always the same, knackered battery.

jmho.

Rich

 

[ahutcheon]

Batteries don't really like deep discharge, like completely flat. Sometimes you get away with it and can charge them back up, sometimes you don't. I'm guessing you need a new battery.