My bike was working fine one day, I parked the bike in the garage, the key in the off position. The next day I got the bike out and it was dead. Completely dead. No lights, no nothing. I tried to charge the battery and it wouldn't take a charge. I connected the battery charger terminals directly to the bikes +/- terminals and turned the charger on, with the key still in the off position. The lights came on, but were dim, the rev counter needle move it's full range but was slower and the fuel pump did it's normal power up function, albeit slower. the key still in the off position. Then once it was finished with it's pre engine start ritual, it went off. I tried the key, nothing, I disconnected the battery charger from the bike and gave it a moment, reconnected it, and still nothing. I ordered a new battery, just installed it and with the key in the off position the lights come on, the F1 error code comes on the screen and the cooling fan comes on. If I turn the key to the on position the lights get a bit brighter but won't start. I have to disconnect the battery for the lights and fan to stop.
2012 650