[L473ncy]

+1 on the smart chargers . What they do is eliminate the "memory effect" of batteries getting constantly charged/discharged. This is because smart chargers do this thing called "battery conditioning" which basically means that it conditions the battery to go to minimum charge then it will charge it to max (so that the calibration doesn't get all screwed up when you only do half a discharge).

So in conclusion get a smart charger from BBbastard it's a good investment (because your batteries will last longer).