Battery flat after one week parked
I left my F650GS twin for a week and came back to find a flat battery. Just before this I had had an annual service with BMW Park Lane so I called them and was informed that this was a normal enough period for the battery to discharge. They said a new battery might do 2 weeks but mine at 2.5 years old, one week was par for the course. Can anyone confirm? Seems mighty short to me. I have to add that the alarm was on (although it is supposed to sleep and then switch off to avoid this issue) and I had a GPS cable (not unit) plugged into the accessory socket (again, theoretically not a problem as the socket is supposed to switch off 15 mins after ignition off)
I am heading off for a year around South America in a few months time and might well have periods where I don't ride for a week or more - so should I carry a solar charger? I am thinking of getting one for home (no power socket availability where I keep the bike in my front garden)
Or does it sound like my battery needs replacing? BMW Park Lane said it just passed their tests...
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