Mono crystalline silicon 60W, maximum charging voltage 18.56V, maximum charging current 3.23A, size:670x540mm 2. A class 18650 lithium battery, long working life, 80% capacity power remaining after 500 cycles 3. Complies with GB31241 to ensure the safety of lithium battery 4. PV has passed the certification of national solar authority, and obtained CE, ROHS test report 5. The battery pack has the protection of overcharge, over discharge, reverse connection, overvoltage, short circuit, etc 6. Output voltage DC: 11.1V, maximum output current: 10A 7. Aluminum alloy stamping support, high strength, high toughness, light weight, high-grade plastic spraying, battery compartment inside the bracket, IP65 waterproof.