get a get a good group 34 up front (xsd3400/s3400) and the you can get like an xp3000 or 2 xp2000.. you don't have to get xs/xp batteries. I just used this as examples..
Should be fine but depending on your playing habbits its not a bad idea to put the whole thing on a battery charger over night once a week to help take some stress off the alt