I'm really thinking of getting this charger now. It's the same price as the battery but looks like it will do a full charge as well as maintain the battery. I'm just hoping it will fit in the car so I don't have to pull the battery to charge it all the time. I don't have a garage but I do cover the car, I doubt it will get wet.
Under the Odyssy heading it says it wont even try to charge a battery that is less than 2 volts, I'll have to check it first. If its lower I'll try and get a new battery under warantee then get a battery tender instead.
http://www.batterymart.com/p-ACC-12V7A-S.htmlAs for as charging it off of the alternater, its obvious I need some kind of charger anyway.