Description
BMS LFP 4S 10A Blue Square – Model: 809D
The BMS LFP 4S 10A Blue Square (809D) is a compact and efficient battery management system designed for 4-series LiFePO4 battery packs. With 10A continuous charge/discharge support, this BMS is ideal for medium-power 12.8V applications such as DIY battery packs, solar energy storage, e-bikes, scooters, and portable electronic devices.
Its Blue Square PCB design ensures improved stability, heat dissipation, and long-term reliability. Equipped with essential voltage and current protection features, this BMS safeguards your battery pack and extends its operational lifespan.
⭐ Key Features
🔹 Supports 4S LiFePO4 Batteries
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Nominal Voltage: 12.8V
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Charging Voltage: 14.6V
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Ideal for compact and medium-power battery systems
🔹 10A Charge & Discharge Current
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Continuous 10 Amp support
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Suitable for portable devices, e-bikes, and small storage units
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Reliable power delivery
🔹 Built-In Protection Features
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Overcharge protection
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Over-discharge protection
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Short-circuit protection
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Overcurrent protection
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Temperature stability
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Reverse connection safety
Ensures safe operation under all conditions.
🔹 Blue Square PCB Design
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Improved heat dissipation
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Stable high-quality copper traces
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Durable build for long-term usage
🔹 Ease of Integration
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Simple wiring design
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Compact size fits most battery housings
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DIY-friendly installation
📐 Dimensions & Weight
📏 Size (Approx.)
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Length: 55–60 mm
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Width: 35–45 mm
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Thickness: 8–12 mm
⚖ Weight
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Approx. 30–50 grams
