Applicable scope: Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, without limitation on the dimensions)Product Size: 45*15*3.4mm (Standard), 48*20*3.4mm (Balancing)Charging voltage: 8.4V - 9.0VContinuous discharge current (upper limit): 20A (If the cooling environment is not good, reduce the load current use)Continuous charge current (upper limit): 10AStandard Edition: Suitable for starting drills with currents up to 25A below 50W, or resistive loads below 168W. Key Features

·         Comprehensive Protection – Overcharge, over‑discharge, short‑circuit, and overcurrent safeguards

·         High Current Capacity – Supports up to 20 A continuous load

·         Automatic Cut‑off – Disconnects battery during unsafe conditions

·         Voltage Balancing – Maintains uniform charge across all cells

·         Compact Design – Easy to integrate into battery packs and DIY builds