Features: Ensures safe and efficient power management with this 3cell 12V 18650 Battery Protections Board featuring overcharge, over discharge, and short circuits protections, and a modern Type C charging port for quick compatibility. compactly design supports up to 20A discharge current, operates in -40°C to +70°C environment. Ideal for DIY enthusiasts, electric vehicle builders, and power tool users requiring reliable 18650 lithiums battery protections across demanding applications. Perfectly integrates into e bikes, robotics, portable power stations, and Remote models where stable 12V output and cell balancing is critical. builts with low 100mΩ resistance and 30,000+ hour lifespans, this plastic base Protections Board ensures extended battery durability while maintaining optimal performances under extreme conditions. Specifications: Material: plastic Size:Approx.35x36x4mm/1.38x1.42x0.16inch Option Type:1pcs,3pcs; Charging current: 1A Charging voltages: 4.25v±25mv Overcharge: 4.25v±25mv Overdischarge: 2.7v±25mv Overcurrent: 20±3A short circuits protections: 250us Working temperature:- 20℃—70℃ Applicable Objects: 3cell 12v18650 lithiums Battery Function: AntiOvercharge and Over-Discharge short circuits Protections Applicable Scenario:Power Tool: Package Includes: Package A 1pc 3cell 12V 18650 Battery Protections Board Package B 3pcs 3cell 12V 18650 Battery Protections Board note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.