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  • 2S Li-ion 18650 Lithium Battery Charger Protection Board 7.4V Overcurrent Overcharge Overdischarge Protection
  • 2S Li-ion 18650 Lithium Battery Charger Protection Board 7.4V Overcurrent Overcharge Overdischarge Protection
  • 2S Li-ion 18650 Lithium Battery Charger Protection Board 7.4V Overcurrent Overcharge Overdischarge Protection
  • 2S Li-ion 18650 Lithium Battery Charger Protection Board 7.4V Overcurrent Overcharge Overdischarge Protection
  • 2S Li-ion 18650 Lithium Battery Charger Protection Board 7.4V Overcurrent Overcharge Overdischarge Protection
2S Li-ion 18650 Lithium Battery Charger Protection Board 7.4V Overcurrent Overcharge Overdischarge Protection

2S Li-ion 18650 Lithium Battery Charger Protection Board 7.4V Overcurrent Overcharge Overdischarge Protection COD

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                        1. The protection board uses imported lithium polymer rechargeable battery protection IC
                        2. Built-in three overcurrent detection circuit (current 1, current 2, load short circuit)
                        3. Through the MOS tube can control the battery charge and discharge
                        4. Connect the terminals of the charger with high withstand voltage devices
                        5. Operating temperature range: negative 40 degrees to 60 degrees
                        6. Built-in high-precision voltage detection circuit
                        7. Low current consumption
                        Welding point Description:
                        B + is connected to the positive side of the battery pack
                        MB Connect the contacts in battery 1 and battery 2
                        B - Connect the negative of the battery pack
                        P + is connected to the positive terminal (charge side / discharge side)
                        P-negative / negative terminal (shared with charge / discharge)

                        Charging voltage
                        DC9V CC/CV (Max.12V)
                        Single-section equalization voltage /
                        Current Single-phase equalization current /
                        Single section current consumption (self-consumption) ≤6uA
                        Maximum sustained discharge current 4A
                        Overcharge protection Overcharge detection voltage 4.29V 
                        Accuracy: ≤ ±0.025V
                        Overcharge detection delay time 1s
                        Overcharge detection recovery voltage 4.05V 
                        Accuracy: ≤ ±0.025V
                        Overdischarge protection Overdischarge detection voltage 3V 
                        Accuracy: ≤ ±0.1V
                        Overdischarge detection delay time 128ms
                        Overdischarge detection recovery voltage 3.2V 
                        Accuracy: ≤ ±0.1V
                        Overcurrent protection Overcurrent detection voltage 200mv 
                        Accuracy: ≤ ±30mv
                        Overcurrent detection current 9.8A
                        Accuracy: ≤ ±3A
                        Overcurrent detection delay time 12ms
                        Recovery status
                        Automatic recovery
                        Short circuit protection
                        Detection status External short circuit
                        Detection delay time ≤50us
                        Recovery status Automatic recovery
                        Internal resistance Protection circuit (MOSPET) ≤21mΩ
                        Temperature  Working temperature range -40~+52°C
                        Storage temperature range -40~+125°C
                        Product Usage:
                        2 strings of nickel cobalt manganese, lithium cobalt oxide, lithium manganese oxide rechargeable batteries
                        2 series lithium polymer rechargeable battery
                        1. During connection,pay attention to input/output voltage,load current using condition, and make sure that board power consumption will not surpass tolerance consumption
                        2. When connect with battery,it may not discharge;in this condition,continuous charging can let it restore to normal operating state
                        3. When overcharging battery and overdischarging battery are mixed up,it will become charging and overdischarging state, both of them cannot perform charging and discharging
                        4. Although this protection board internallt installs anti-static protection circuit, please don't force too high static electricty on protection board
                        Package included:
                        1 x 2S Li-ion 18650 Lithium Battery Charger Protection Board

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                        Shipping method(s) Shipping time Tracking information
                        (1) The shipping time mentioned above refers to the estimated time of business days that the shipment will take after an order has been shipped.
                        (2) Business days do not include Saturday/Sunday and any public holidays.
                        (3) These estimates are based on normal circumstances and are not a guarantee of delivery times.
                        (4) We are not responsible for the failures or delays in delivery resulting from any force majeure event, such as natural disaster, bad weather, war, customs issues, and any other event beyond our direct control.
                        (5) Expedited shipping can not be used for PO Box addresses

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