For optimum performance, FOXPRO recommends the use of rechargeable batteries for powering your game calls. Keep your rechargeable NiMH batteries ready for deployment with our fast charging kit. This kit is great for use with all FOXPRO game calls except for the Prairie Blaster and Snow-Crow Pro. It can charge 1 - 8 AA NiMH rechargeable batteries at a time. It also features an external AC switching mode adapter with worldwide input (100 - 240VAC 50/60Hz), a 12VDC car charger, and 8 AA NiMH low self discharge rechargeable batteries. Average charge time is about 3 hours from depleted to fully charged.