charging trouble on my bmw k100lt?

plates are probably sulphated,but have you metered your circuit? corroded connectors can cause all sorts of problems

Velofellow
October 2009

Your BMW dealer or any bikeshop should be able to test your battery to see if its toast.
You can also check that the reg/rec is ok by putting a multimeter across the battery terminals, you should be getting a reading of between 14 & 15 volts while the engine is running.
It does sound as if you need a new battery especially if it has been lying up for 6 mths without getting a regular charge. Chances are the cells have probably sulphated & now it won't hold a charge,
regards Stephen.

steo
October 2009