3S 4S 120A Lithium Battery Charger/Discharger Protection Board Battery Management System Same Port Active Equalizer Module

High-concerned chemical : none Charging Current : 120A Usage Scenario : Power BMS,Energy Storage BMS,3C Digital BMS Certification : CE Balance Function : Active Balanced BMS Handware or Smart : SMART BMS Charge and Discharge Port : Common Port BMS Type : LI-ION Battery BMS Origin : Mainland China Brand Name : occkic Function : Overcharge Protection,Over Discharge Protection,Overcurrent Protection,Short Circuit Protection

Features 1. Supports 120A continuous current and up to 750A peak current, suitable for high-current starting scenarios 2. Compatible with 3-cell and 4-cell lithium battery packs, accommodating diverse configurations with strong scalability and broad applicability 3. Features a same-port design with high-precision independent balancing ICs, delivering balancing currents up to 100mA 4. Incorporates 22 high-power ultra-low-resistance MOSFETs, achieving overall board resistance as low as 0.55 mΩ 5. Provides multiple protections including overcurrent and short-circuit protection, ensuring comprehensive safety and reliable operation of the battery system Parameter Overcharge Voltage: 4.25V Overcharge Recovery Voltage: 4.19V Overcharge Protection Delay: 1000mS Overdischarge Voltage: 2.8V Overdischarge Recovery Voltage: 3V Overdischarge Protection Delay: 10S Discharge Protection Current: 300A Peak Current: 750A Same-Port Continuous Discharge Current: 120A (with heat sink) Over-Discharge Current Protection Delay: 10S Continuous Charging Current: 80A Over-Charge Current Protection Delay: 20mS This protection board is designed for high-power applications such as outdoor power supplies, marine equipment, automotive starters, and inverters. This model supports ternary lithium batteries in 3S and 4S configurations. It incorporates mature protection circuits, dedicated ICs with open-circuit protection, high-precision independent balancing ICs, TVS surge protection, and imported high-current MOSFETs with ultra-low internal resistance. The board achieves an overall internal resistance as low as 0.55 mΩ (excluding wiring) and handles peak currents up to 750A. It provides comprehensive and stable protection functions for both charging and discharging. The hardware-based cell balancing ensures appropriate balancing current and reasonable heat dissipation, without compromising battery pack performance. Package include Lithium Battery Protection Board*1 label:yes

Battery capacity: 43200 Charge indicator: No Number of ports: 1 port Voltage: 1.5