18650 Battery Charger Black 1 2 4 Slots AC 110V 220V Dual For 18650 Charging 3.7V Rechargeable Lithium Battery Charge Battery are not include Product Name: 18650 Charge Features: 1/2/4 slots independent chargin Product weight: 35/70/106 gram Power supply mode: regular USB power suppl Input voltage: DC 5V 1-2 Output voltage: DC 4.2V 1000m Product size: 90*30*122m Compatible battery model: 10440 14500 16340 16650 14650 18350 18500 1865 Six protections: overcharge protection, overcurrent protection, over temperature protection, short circuit protection, reverse connection protection, over discharge protection