Features: Product Name: 18650 four-slot lithium ion battery with line charger Suitable model: suitable for 1-4 18650 lithium ion rechargeable batteries Input: 110V-240V Output: 4.2V, 1200MA, (DC3.5 round plug) Product features: With perfect over-current and short-circuit protection function, it does not need to cut off the power immediately after being fully charged. It has its own function to prevent overcharge. The slot has an indicator light. Package List: 1 x 18650 Battery Charger