I have the K1 installed on y BMW 1600GTL, over this winter my battery died. I installed a new battery but now my K1 DVR will not come on. It will come on if i hold the power button down but when it comes on the battery icon flashes. Then after a few seconds it powers down. I am sure the DVR's backup battery is dead but when i start the bike it should turn on and start charging? Any ideas?