I posted several years ago on this topic and it has reappeared. Tried to go for a ride today and when I turned on the key, the dash went thru its usual start up but when I pushed the starter button absolutely nothing. I pulled the battery out and took it to the dealer and it tested bad. It had been replaced in April 2021. Since the bike was delivered in Nov 2016, I have had 4 batteries - this will be number 5. The bike is always kept on a BMW brand trickle charge plugged into the accessory port. There seems to be some discussion that the battery cannot be charged this way. So I am wondering:
1. is the accessory port faulty?
2. Is the charger faulty?
3. Is there a parasitic drain so big that the trickle charger can't overcome it?
How would I check the charger? The screen on the charger says it is maintaining the battery at 100%.
Any advice on how to pull the accessory socket to check it?
Any logical places to look first for a parasitic drain?
Thanks for any assistance.
Jim
1. is the accessory port faulty?
2. Is the charger faulty?
3. Is there a parasitic drain so big that the trickle charger can't overcome it?
How would I check the charger? The screen on the charger says it is maintaining the battery at 100%.
Any advice on how to pull the accessory socket to check it?
Any logical places to look first for a parasitic drain?
Thanks for any assistance.
Jim