HUXUAN 15V 4S 2P 18650 Li-Ion Battery Pack with BMS
HUXUAN 15V 4S 2P 18650 Li-Ion Battery Pack with BMS
HUXUAN 15V 4S 2P 18650 Li-Ion Battery Pack with BMS — Built for Power Wall Projects
Power your next DIY energy storage build with the HUXUAN 15V 4S 2P 18650 Lithium-Ion Battery Pack. Designed for makers, hobbyists, and electronics enthusiasts, this compact yet capable battery pack features a built-in Battery Management System (BMS) that actively monitors and protects your cells — keeping your project running safely and efficiently.
Made in Mainland China.
Key Specifications
- Configuration: 4S 2P (4 Series, 2 Parallel)
- Nominal Voltage: 15V
- Nominal Capacity: 700mAh
- Battery Type: Li-Ion (18650)
- Material: Plastic & PCB
- Set Type: Batteries Only
- Package Includes: 1 Pc
Charging Guidelines
- 35W charging requires a 12.6V charger
- 65W charging requires a 25.2V charger
- Recommended maximum charging current per layer: 2A (e.g., 1 layer = 2A charger; 2 layers = 4A charger) to prevent overheating
Important Safety Precautions
- Do not use on a metal table — always ensure proper insulation to avoid short circuits
- Batteries must face upward when viewing the circuit board; all batteries must face the same direction and must not be crossed
- Do not connect the power supply with reversed polarity — check the markings on the circuit board carefully before connecting
Easy Installation
- Upon receiving, install the batteries directly by referencing the orientation and polarity symbols on the circuit board
- Align the slots correctly, then secure the copper posts by screwing them in
- Verify all copper posts are properly seated, then connect the ribbon cable
- Once the ribbon cable is connected, the pack is ready to use
Why Choose This Battery Pack?
- ✅ Built-in BMS for overcharge, over-discharge, and short-circuit protection
- ✅ Modular 4S 2P configuration — scalable for larger power wall builds
- ✅ Straightforward installation — no specialized tools required
- ✅ Clear PCB markings make polarity identification easy
- ✅ Compact form factor ideal for DIY energy storage projects
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Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: What charger do I need for this 15V 4S 2P 18650 battery pack?
A: The charger requirement depends on your desired charging wattage. For 35W charging, use a 12.6V charger. For 65W charging, use a 25.2V charger. Always ensure the charging current per layer does not exceed 2A to maintain safe operating temperatures.
Q: Is the BMS (Battery Management System) included in this pack?
A: Yes! This battery pack comes with a built-in BMS integrated into the PCB. The BMS provides essential protection functions including overcharge protection, over-discharge protection, and short-circuit protection, making it a safe choice for DIY power wall and energy storage projects.
Q: Can I expand this battery pack for a larger power wall build?
A: Yes, the modular 4S 2P configuration is designed to be scalable. When adding additional layers, remember to adjust your charging current accordingly (e.g., two layers = 4A charger maximum) to ensure safe and optimal charging performance.
Q: What surfaces are safe to use this battery pack on?
A: Always use this battery pack on a non-metal, insulated surface. Using it on a metal table can create unintended electrical contact and risk a short circuit. Proper insulation is essential for safe operation.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.