1S 6A 3.7V Lithium Battery Charger/Discharger Protection Board MOS Tube Equalizer Module Battery Management System BMS Board

1S 2A 3.7V 1MOS:
Persistent discharge current: 2A-9A
Single consumable battery (self consumption): ≤ 3uA
Charging voltage: 3.7
Charging current: 2A-9A
Overcharge detection voltage: 3.7 ± 0.05V
Overcharge protection delay: 1s
Overcharge release voltage: 3.7 ± 0.05V
Overdischarge detection voltage: 2.0-2.1V
Overdischarge detection delay: 100mS
Overdischarge release voltage: 2.3 ± 2.1V
Overcurrent detection voltage: 200 ± 25mV
Overcurrent detection delay: 10mS
Overcurrent detection current: 2A-9A
Overcurrent protection release condition: automatic recovery
Short circuit protection conditions
External load short circuit
Short circuit detection delay: 250uS
Short circuit protection release condition: disconnect the load
Main circuit conduction internal resistance: ≤ 20m Ω
Working current: ≤ 20uA
Sleep current (during overcurrent): ≤ 20uA
Temperature range: -20 to -40
Board size: 90 * 45 * 6.8mm

1S 6A 3.7V 4MOS:
Sustained discharge current: 2a-6a
Single cell battery consumption (for personal use): ≤3uA
Charging voltage: 3.7V
Charging current: 6a
Overload detection voltage: 3.7±0.05V
Overload protection delay
Overload release voltage: 3.7±0.05V
Overdischarge detection voltage: 2.0-2.1V
Overdischarge detection delay
Overdischarge release voltage: 2.3±2.1V

Usage precautions:
1. Before installing the protection board, the batteries must be well matched (the voltage difference between each cell should not exceed 0.05V, the internal resistance difference should not exceed 5mΩ, and the tolerance should be less than 30mAh). The smaller the battery voltage difference, the better the protection board performs.
2. After connecting batteries in parallel, solder them in series correctly (nickel spot soldering for 18650 batteries, soldering for other batteries). Failure to bolt them together can easily damage the IC protection board. 3. If replacing an old battery board, please ensure the battery is functioning properly before purchase.
4. During installation, use a multimeter to check for voltage consistency. Performance issues with a voltage difference exceeding 1.0V include: short-range operation, start-stop operation, and short charging times. These issues are typically related to battery cell problems. Protection board issues include: battery failure to charge, battery voltage present but inability to discharge.