Features 1、Special structure, support 2V low voltage input, no fear of low voltage, especially suitable for 18650 high‑power boost. 2、High power, the maximum input current can be up to 15A, the output current is 4A; when 3.7V input, the output power can be up to 45W, when 12V input, the output power can be up to 80W. 3、Perfect protection mechanism, input reverse connection to prevent burning, input over-current protection, input under-voltage protection. 4、Output anti‑backflow, constant voltage and constant current, can be directly connected to the battery for charging. 5、High efficiency, dual-stage filtering and low ripple, reliable and stable performance! Specification Item Type: Boost Module Material: PCB Input Current: Maximum 15A Output Current: Maximum 4A Output Power: Under 3.7V Input, the Maximum Power is 45W; Under 12V Input, the Maximum Power is 80W; Output Ripple: Dual-Stage Filtering, Low Ripple Output Conversion Efficiency: 82~95% Input Overcurrent Protection: 15A Fuse Input Anti-Reverse Protection: High Efficiency MOS Type Purpose: Boost Applicable Scene: Lithium Battery, Electronic Control Package List 1 x Boost Module 1 x Heating Panel