•Model: 18650-Flat Head
•Battery Capacity: 9900mAh/19800mAh
•Battery Voltage: 3.7V
•Battery Type: Li-ion
•Battery Size: 18*65mm
•The batteries are high quality and durable
•Discharge rate, no memory effect
•Low reoccurring operation cist, Short -circuit and over-current protection
•Safe and environmental friendly
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•Product Name: Charger
•Features :4 slots independent charging
•Product weight :106 grams
•Power supply: common USB power supply
•Input voltage :DC 5V 1-2a
•Output voltage :DC 4.2V 1000mA
•Features: Rechargeable battery, re-discharge protest circuit.
•Low repetitive operation risk, short circuit overcurrent protection. Safety and environmental protection.
•Great for flashlights or electronics.
•Store in a dry, cool place.