Like I said earlier..somewhere.. I replaced the OEM Yuassa battery on the Husa right off the bat with a Shorai battery. It definitely cranks the bike better.. I have the $$ Shorai charger, but I have never plugged it in.. I have not started the bike since November.. so I thought I would go out and see if it would start.. today it was around 30 and snowing here in Newport... sorry about the goofy cell phone video. <iframe width="420" height="315" src="http://www.youtube.com/embed/hy-nr7WLv1o" frameborder="0" allowfullscreen></iframe> I didnt have to "warm" the battery up at all.. although there are other videos of bigger bikes where the owner definitely had to turn on the headlight for a bit.. I think mine starts so well because the Shorai has way more CC amps than the bike requires.