I have 6 bikes and have the Cycle Gear life time in 5 of them. 4 of them take the same battery and never a problem but the one for the Honda 919 seems to only last a year. They always lose a cell or two over nite which shows 12.6 one night and 7 the next out of nowhere. It is also way more $ than the others cost but Cycle Gear does not even ask for a receipt since they are the only ones that carry that brand.
My beemer takes a battery that is a 19 series and hard to find so it got the yellow top battery and it never fails. That might be what is next for the Honda when that battery says it quits again.
I live in St Louis and usually never need a battery tender because if we get a sunny 40 degree day I will take one of them for a ride.