I use the same charger for my aqua vu as i do for my vex. You can pick up chargers at Gander mountain or cabelas. I have seen some deals where you buy a new battery and the charger comes with it .
IF i were you i would look for the chargers that have the lights that change color when fully charged. Like when you hook it up and it blinks red or is solid red and when it is fully charged it blinks green or is solid green. They are much easier to use an tell if your battery is charged fully or still needs more juice.
JM
