HomeElectronicsAccessories & SuppliesCamera AccessoriesCamera Grips & Straps2S 20A 18650 Li-ion Battery Series BMS Charger Protection Module
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₦ 5,000
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Product details
A 2S 20A 18650 Li-ion Battery Protection Board (BMS) manages two lithium-ion cells connected in series. It protects the batteries from damage during charging and discharging, ensuring safety and longevity.
Key Specifications:
- Series Rating: 2S (7.4V nominal, 8.4V fully charged)
- Maximum Current: 20A continuous discharge
- Battery Type: 3.7V Lithium-Ion (like 18650 cells)
- Charging Voltage: 8.4V - 9.0V DC
Core Protection Functions:
- Overcharge Protection: Stops charging when any cell hits ~4.25V.
- Over-discharge Protection: Cuts power when any cell drops below ~2.5V.
- Overcurrent Protection: Disconnects the load if current exceeds safety limits.
- Short Circuit Protection: Shuts down output instantly during a short circuit.
Standard Wiring Guide:
- B+: Connects to the positive terminal of the second battery.
- B-: Connects to the negative terminal of the first battery.
- BM: Connects to the middle junction between the two batteries.
- P+: Connects to the positive charge input and load output.
- P-: Connects to the negative charge input and load output.
Critical Safety Warnings:
- Do not mix old and new batteries in the pack.
- Use batteries with matching capacities and internal resistance.
- Double-check polarity before soldering to prevent board burnout.
- A high-current BMS requires thick wires rated for 20A performance.
Specifications
Key Features
Common Applications:
- Robotics: Powers small robot chassis, Arduino-based vehicles, and robotic arms.
- Portable Electronics: Powers handheld walkie-talkies, custom Bluetooth speakers, and LED camping lanterns.
- Backup Power: Acts as a mini-UPS for 5V–12V routers, modems, and security cameras.
- Power Tools: Drives low-power electric screwdrivers, mini vacuums, and engraving pens.
- Smart Home Devices: Energizes motorized window blinds, smart door locks, and outdoor sensor arrays.
Specifications
- SKU: GE779EA7BW0UMNAFAMZ
- Weight (kg): 0.1
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2S 20A 18650 Li-ion Battery Series BMS Charger Protection Module
₦ 5,000
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