Originally Posted by Tomane
Just bought shorai for 990 2009 adv. 2 weeks ago along with $80 charger. Will not crank bike. Charger does not give any error codes. Any suggestions besides buying new OEM battery?
Variables include incompatible battery output (make sure it is the correct one. Extreme low temperature and very high viscosity oil both making it hard to crank. My guess is just the battery is undersize.