This iPower Battery & charger combination includes the iPower FC-9V4LN (4) bay Charger and (4) 9V 700 mAh Lithium Polymer batteries. The Lithium Polymer battery is new gel technology that provides consistent long lasting power in high current situations such as professional wireless systems. This Pro model incorporates a higher grade of Lithium, increasing dependability and performance.These batteries maintain over 80% capacity through 100 charging cycles creating tremendous $ savings. Full simultaneous charging can be had in 1 hr with the FC-9V4LN charger. Supplied with the charger is an AC adapter and cigarette lighter adapter.