18650 20A 3S lipo BMS protection board
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Description: The 18650 20A 3S LiPo BMS (Battery Management System) Protection Board is designed to manage and protect 3-cell lithium polymer (LiPo) or lithium-ion (Li-ion) battery packs. It provides overcharge, over-discharge, overcurrent, and short-circuit protection to ensure the safe operation and longevity of the battery pack. This board is essential for applications that require reliable battery management, such as electric vehicles, power tools, and portable electronics.
Key Features:
- Designed for 3S (3-cell) LiPo or Li-ion battery packs
- Overcharge protection
- Over-discharge protection
- Overcurrent protection
- Short-circuit protection
- Balancing function to ensure even charging of each cell
- High current handling capacity up to 20A
- Compact and easy to integrate
- Battery Configuration: 3S (3-cell)
- Operating Voltage: 12.6V (full charge) to 9V (discharged)
- Overcharge Protection Voltage: 4.25V ± 0.05V per cell
- Over-discharge Protection Voltage: 2.8V ± 0.1V per cell
- Dimensions: 50 mm x 17 mm x 4 mm
- Weight: 8 g
- Electric vehicles (e-bikes, e-scooters)
- Power tools and cordless appliances
- Portable electronics and gadgets
- Renewable energy storage systems
- DIY battery pack projects
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment