The Valken Energy 8.4v-9.6v Universal NiMH Smart Charger is a great way to charge your batteries safely. It automatically detects when the battery is fully charged and stops charging accordingly. This prevents overcharging and damaging your batteries.

This Valken charger is perfectly matched with standard 9.6v 1600 Nun-chuck batteries for optimal use.  This is only for NiMH batteries and not for use with LiPo or lithium style (there's a separate charger for those).  Do not plug LiPo batteries into this charger.  LiPo batteries require a 4-prong balancer plug to charge.

For safety, unplug your charger from wall outlets when not in use.  If you're looking for the best value airsoft battery charger out there, this is the one you will want.