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Battery Charging and Protection Module

5S 18650 5-24V Input Lithium Battery Balance and Protection Extension Board - BCPB3[720]

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As the new comer of BCPB (Battery Charging and Protection Board) series, BCPB3 inherits the high efficiency and high reliability of BCPB2, offering more battery holders for commonly used 18650 Lithium batteries. BCPB3 is designed for 5pieces 18650 Lithium Batteries in series and can be used as a power bank for Routers, High power portable speakers and Mobile phones, which is widely used in Home DIY applications to save your precious time from the connection of electric wires. Supporting wide range of charging input voltage and hybrid charging sources is one of the highlights of BCPB3. Any 5-24V 2A adapters can be used to charge the batteries with BCPB3.

The balance and protection circuit constantly to monitor each cell’s voltage, the current of charging or discharging, and the temperature of the environment to provide overcharge, over-discharge, output over-current, short circuit, charge over-current and over-temperature protections, etc.

The special design of mounting holes makes it rather easy for customers to power WONDOM boards in 3.6’’ x 2.7’’ and 4.8’’ x 3.6’’ with several screws, greatly improving convenience of operation.

  • TypeBattery Charger
  • StyleModule & Board
  • 5-24V Wide Range Charging Voltage
  • Hybrid Charging Sources
  • Supporting Extension Board with
  • Dual 5V 2A USB Discharge Ports
  • Multi-discharging Ports
  • Solar Charging Supported
  • Large Capacity with 5 cells 18650 Batteries
  • LED Indicators for Battery Status
  • Balance Protection
  • Short Circuit Protection
  • Over-temperature Protection
  • Over/Under Voltage Protection
  • Output/Input Over-current Protection
  • Over-charge and Over-discharge Protection
  • Weight: 168g/0.37lbs (±10%)
  • Size: 4.8 x 3.6 x 1.28 inches
Specifications typical @ +25℃, unless otherwise noted. Specifications subject to change without notice.
Parameter(s) Conditions Min. Typ. Max. Unit(s)
Supply Voltage - 5 12 24 VDC
Maximum discharge current - - 5 - A
Typical charge current - 0.5 1.35 2 A
Overcharge detection voltage Per Single cell - 4.235 - V
Overcharge release voltage Per Single cell - 4.18 - V
Over-discharge detection voltage Per Single cell - 2.8 - V
Over-discharge release voltage Per Single cell - 3.0 - V
Balance starting voltage Per Single cell - 4.18 - V
Operating Temperature - - 20 50



21 Feb 2020

Can I leave the charger connected to the battery charging unit once it is fully charged at 100%?

Hi, Richard. Thank you for your interest in our products. Yes, you can leave BCPB3 connected to the power supply after it is fully charged. BCPB3 supports charging and discharging at the same time. Power supply with higher than 2A current is recommended. Wish this could help you.

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