Features: This board is 3-string 12V lithium battery protections board. DIY lithium battery protections board modules 12.6-13V, 8A working current. With multiple protective functions, such as over-charge, over-discharge, over-current and short-circuit protections. Made of quality electronic components, stable and reliable to use. Suitable for 3 series 3.7V 18650 lithium-ion batteries. Specifications: Material: Printed Circuit Board Type: Single MOS, Double MOS(optional) Upper Operating Current: 8A Upper Transient Current: 40A5A Over-charge Range: 4.250.05V Over-voltage Range: 2.50.05V Charging-voltage: 12.6V-13V Self Consumption Current: less than 30A Basic Functions: over-charge, over-discharge, short-circuit and over-current protections Note: Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different display resolution. Package includes: 1x 3S 12V Lithium Battery Protection Board