18.5V 10A BMS 5S ZX-5S03V1 Battery Protection Board

If you're looking for a simple battery protection board for your project, here's one for you. This board is based on the BM3451 chip. It handles 5 18650 battery in series or a total of 18.5V. It also has external bleeding for cell-capacity preservation. This prevents pressure on an individual cell leading to a longer battery lifespan.


  • Suitable battery: 3.7V 18650 Lithium battery or polymer battery
  • Charging Voltage: DC21V CC/CV
  • Instantaneous current: 15A±2A
  • Continuous current: ≤10A
  • Charging current: ≤5A
  • Overcharge detection: 4.25±0.025V
  • Overcharge recovery: 4.15V±0.025V
  • Over discharge detection: 2.8V±0.05V
  • Over discharge recovery: 3.0V
  • Resistance: less than 20mΩ
  • Short circuit protection: protect and automatic recovery
  • Recovery mode: Automatic recovery
  • Size: 53mm x 18mm x 4mm

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18.5V 10A BMS 5S ZX-5S03V1 Battery Protection Board

  • Brand: OEM
  • Product Code: 2693
  • Availability: 5
  • ₱395