Ensure the safety and longevity of your 5-series Li-ion battery packs with this high-performance Protection Board, designed specifically for electric power tools, 18650 batteries, and similar applications. Engineered to deliver reliable and stable charging and discharging protection, this board supports a maximum continuous discharge current of 15A and offers comprehensive safeguards to maintain battery health and prevent damage. Key Features: · Compatible with 5-Series Li-ion Batteries: Perfectly suited for 5-cell Li-ion battery packs commonly used in electric power tools and 18650 configurations. · Dual Charging and Discharging Connectors: Features the same connector for both charging and discharging, simplifying installation and maintenance. · High Discharge Capacity: Supports a continuous discharge current of 15A and a momentary discharge current up to 25A, ensuring stable power delivery under load. · Comprehensive Protection Functions: Includes overcharge protection, over-discharge protection, short circuit protection, and overcurrent protection to safeguard batteries against common faults. · Precise Voltage and Current Control: Overcharge detection voltage at 4.28±0.05V with a delay of 0.5 seconds; over-discharge detection voltage at 2.55±0.08V with a 0.1-second delay; overcurrent detection voltage at 150mV with a 9ms delay, providing accurate and timely protection. · Low Internal Resistance and Power Consumption: Main circuit conduction resistance ≤20mΩ, working current ≤30μA, and sleeping current ≤10μA, optimizing battery efficiency and reducing power loss. · Wide Operating Temperature Range: Reliable performance from -30℃ to +80℃, suitable for various environmental conditions. · Compact and Lightweight Design: Measures 88 x 17 x 3mm (3.46 x 0.67 x 0.12 inches), making it easy to integrate into battery packs without adding bulk. Specifications: · Discharge Current: 15A continuous, 25A momentary · Charge Voltage: 21V max · Overcharge Protection Voltage: 4.28±0.05V · Overcharge Cancel Voltage: 4.08±0.05V · Over-discharge Protection Voltage: 2.55±0.08V · Over-discharge Cancel Voltage: 2.9±0.1V · Overcurrent Protection Current: 30±3A · Short Circuit Protection Delay: 250μS · Operating Temperature: -30℃ to +80℃ · Size: 88 x 17 x 3mm Package Includes: · 1 x 5S Li-ion Battery Protection Board This Protection Board is an essential component for anyone looking to extend the lifespan and ensure the safe operation of 5-series Li-ion battery packs. By preventing overcharge, over-discharge, short circuits, and overcurrent situations, it provides peace of mind and reliable performance for your electric power tools and battery-powered devices.