Massive 7200mAh capacity in a compact square layout, with ultimate safety.
This 18650 LiFePO4 (Lithium Iron Phosphate) Battery Pack features four cells connected in parallel (4P) in a space-saving 2x2 square arrangement. It delivers a stable 3.2V nominal voltage (3.65V full charge) and a massive 7200mAh capacity.
Unlike standard 3.7V Li-ion cells, LiFePO4 chemistry offers superior thermal stability, an ultra-long cycle life, and a much lower risk of fire or explosion. It comes fully assembled with a built-in protection board (BMS) and pre-wired with red (positive) and black (negative) leads, ready for easy installation. The compact 38x38mm footprint makes it perfect for square battery compartments where a long inline pack won't fit.
CRITICAL WARNING: Voltage Compatibility
This is a LiFePO4 battery (3.2V). You MUST use a dedicated LiFePO4 charger with a 3.65V cutoff. Never use a standard 3.7V/4.2V Li-ion charger, as it will overcharge the battery and cause permanent damage or fire.
Key Features
LiFePO4 Chemistry: High thermal stability, excellent safety, and an ultra-long cycle life (typically 2000+ cycles).
4P Configuration (7200mAh): Four cells in parallel provide quadruple the capacity for exceptionally long runtime.
Compact 2x2 Square Layout: Space-saving design (approx. 38mm x 38mm x 67mm) ideal for tight enclosures.
Built-in Protection Board (BMS): Protects against overcharge, over-discharge, over-current, and short circuits.
Pre-wired & Ready to Use: Comes with red (+) and black (-) leads for quick connection.
Parameters
*Dimensions are approximate and include the protection board and heat shrink wrap. Please allow ±1-2mm tolerance.
Applications
Recommended For:
Solar Garden Lights: The ideal replacement battery for outdoor solar path lights and lawn lamps requiring long runtime.
DIY 3.2V Projects: Perfect for custom electronics requiring a stable 3.2V power source in a compact footprint.
Emergency Lighting: Reliable, safe power for low-drain emergency lamps.
Not Recommended For:
Devices Requiring 3.7V/4.2V: This battery will not work properly in standard 3.7V Li-ion devices due to the lower voltage.
High-Drain Power Tools: Not suitable for tools requiring high burst currents.
Standard Li-ion Chargers: Never charge this with a 4.2V charger.
FAQ
Q1: Can I use my standard 18650 Li-ion charger for this battery?
A: NO. You must use a dedicated LiFePO4 charger (3.65V cutoff). Using a 4.2V charger will overcharge and damage the battery, potentially causing a fire.
Q2: Why is the voltage only 3.2V? My other 18650s are 3.7V.
A: This is a LiFePO4 battery, not a standard Li-ion battery. LiFePO4 cells have a nominal voltage of 3.2V and a max charge of 3.65V. They are safer and last longer, but cannot be used interchangeably with 3.7V devices.
Q3: What is the actual capacity?
A: The pack consists of four cells in parallel, providing a total capacity of 7200mAh (typically 1800mAh per cell).
Q4: What are the physical dimensions?
A: Due to the 2x2 square arrangement, the pack measures approximately 67mm (Height) x 38mm (Width) x 38mm (Depth).
Q5: How should I connect the wires?
A: The red wire is positive (+) and the black wire is negative (-). Ensure correct polarity when connecting to your device.
