5S 20A BMS Lithium Battery Charging Protection Board - Balancing, Charger Module for Power Tools and Batteries

1. The protection board is for 5-cell series Li-ion batteries, mainly used for power tools.
2. It uses a special IC for 5S lithium-ion batteries as a processor to detect the real-time voltage, charge and discharge current and ambient temperature of each battery.
3. Various and stable protection functions for charging and discharging, such as overcharge protection, overdischarge protection and short circuit protection.
4. Low power consumption, working current is about 25uA and quiescent current is about 6uA.
5. Choosing the right protection board and applying it correctly is essential for the longevity of your batteries.

Specifications

• Tension :
  • Charging voltage: 19/21V
  • Single cell charging voltage: 3.8/4.25V
• Fluent :
  • Continuous discharge current: 8-20A
• Overload protection:
  • Single cell overcharge detection voltage: 3.85-4.25V
  • Overload protection delay: 1S
  • Single cell overcharge recovery voltage: 3.75-4.13V
  • Overload protection release time: 1mS
• Over-discharge protection:
  • Single cell over-discharge detection voltage: 2-2.8V
  • Over-discharge protection delay: 1S
  • Single cell over-discharge recovery voltage: 2.5-3.0V
  • Over-discharge protection release time: 100±20mS
• Overcurrent protection:
  • Overcurrent detection voltage: 0.1-0.4V
  • Overcurrent detection current: 30±5A
  • Overcurrent detection time: 1S
  • Recovery Status: Auto
• Short circuit protection:
  • Support: Yes
  • Short circuit detection time: 250uS
  • Short circuit release time: 1S
  • Short circuit detection voltage: 0.8V
  • Recovery Status: Auto after load disconnection
• Overheating protection:
  • Protection temperature: 70±5°
  • Recovery temperature: 55±5°
• Power consumption:
  • Operating status: 25uA (25°)
  • Standby state: 6uA (25°)
• Internal resistance:
  • Internal resistance of main discharge circuit: 30±5mΩ
• Temperature :
  • Operating temperature: -40°-85° RH≤75%
  • Storage temperature: -40°-125° RH≤75%
• Size :
  • Length * Width: 46 40mm / 1.81 1.57"

Package Contents

1 x Protection Card