High-capacity 32700 power for your solar, storage, and DIY projects.
This 32700 LiFePO4 (Lithium Iron Phosphate) Battery is a single, large-format cell equipped with a built-in protection board (BMS). It delivers a stable 3.2V nominal voltage (3.65V full charge) and a high 5000mAh 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. The 32700 form factor (approx. 32mm diameter) provides significantly more capacity than standard 18650 or 26650 cells, making it ideal for solar street lights, energy storage, and custom battery builds. It comes pre-wired with red (positive) and black (negative) leads. Note: The wire ends are bare (no connector attached).
CRITICAL WARNING: Voltage Compatibility
This is a LiFePO4 battery (3.2V nominal). 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.
32700 Form Factor: Large 32mm diameter cell offering a massive 5000mAh capacity in a single unit.
Built-in Protection Board (BMS): Protects against overcharge, over-discharge, over-current, and short circuits.
Pre-wired Leads: Comes with red (+) and black (-) wires. No connector is attached (bare wire ends).
High Capacity: Ideal for replacing smaller cells in solar lights or power banks to extend runtime.
Parameters
*Dimensions are approximate and include the protection board and heat shrink wrap. Please allow ±1-2mm tolerance.
Applications
Recommended For:
Solar Street Lights: High capacity makes it perfect for outdoor solar lighting systems.
DIY Energy Storage: Ideal for building custom 3.2V power banks or battery packs.
Replacing Lead-Acid Cells: A lightweight, long-lasting alternative for small 3V/4V lead-acid batteries.
Custom Electronics: Suitable for large devices requiring a stable 3.2V power source.
Not Recommended For:
Devices Requiring 3.7V/4.2V: This battery will not work properly in standard Li-ion devices due to the lower voltage.
Plug-and-Play Applications: Since there is no connector on the wires, you must have soldering or wiring skills to connect it to your device.
Standard Li-ion Chargers: Never charge this with a 4.2V charger.
FAQ
Q1: Can I use my standard 3.7V 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 3.2V? My other batteries 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: Does it come with a connector?
A: No. The battery comes with bare red and black wires. You will need to solder or attach your own connector based on your device's requirements.
Q4: What are the dimensions?
A: The cell measures approximately 32mm in diameter and 72mm in height, including the protection board.
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.
