http://store.schumachermart.com/sem-1562a.html This would be better. Charger and maintainer. You can leave it hooked up all the time. I have one similar and when I unpack my stuff in my hobby room I just plug in my charger/maintainer. If I fly the next day it is ready, if i fly next month it is ready.

The one your showing says manual on it, you want an automatic, for maintaining or also called float charging.