4 x 18650 3.7V 2200mAh Li-ion Rechargeable Battery Flat Head Charge Purple with Charger Li-Ion Rechargeable 18650 with IC Protection (pair) Travel charger folds up for easy transport, Charges 1 or 2 batteries simultaneously Can be charged over 500 times, Holds 85% charge over 12month period Free Palstic Battery Container Real Volume As Marked! 3.7V, 2200mAh