4pcs 3.2V 30Ah LiFePO4 Cells for 12-48V DIY Power

Reliable LiFePO4 Cells for DIY 12V-48V Power Systems

Build stable, long-lasting battery packs for solar, UPS and other continuous-load projects with this set of four 3.2V 30Ah LiFePO4 battery cells. Designed for deep-cycle use, these Grade A cells offer consistent performance, long cycle life and flexible configuration options, making them suitable for custom 12V, 24V, 36V or 48V energy storage solutions.

Each cell provides a nominal voltage of 3.2V and a rated capacity of 30Ah, using lithium iron phosphate chemistry for enhanced thermal stability and safer operation compared with many other lithium chemistries. With a recommended continuous discharge current of up to 30A (1C) and low internal resistance (≤1.5 mΩ), these cells support steady power delivery for applications such as solar energy storage, RV and marine systems, backup power (UPS), portable power stations and DIY energy projects.

The cells support CC/CV (constant current/constant voltage) charging with a maximum charging voltage of 3.65V per cell. A deep-cycle design with a cycle life of ≥4000 cycles at 80% depth of discharge helps maintain capacity over long-term use when properly managed with a suitable BMS and charger. The aluminum housing provides a solid structure and efficient heat dissipation, while the compact dimensions make it easier to integrate multiple cells into tight battery compartments or custom enclosures. Each cell is supplied with a metal connector, nuts and flat washers to assist with series or parallel assembly.

Why It's a Smart Choice

• Flexible configuration: combine four cells to build 12V, 24V, 36V or 48V battery packs for a wide range of DC systems.
• Deep-cycle durability: ≥4000 cycles at 80% DOD helps reduce replacement frequency in solar and backup power setups.
• Stable LiFePO4 chemistry: improved thermal stability and lower risk characteristics compared with many other lithium chemistries.

FAQ

Q: What applications are these cells suitable for?
A: They are commonly used for DIY 12V-48V battery packs in solar energy storage, UPS backup systems, RV and marine power, off-grid cabins, portable power stations and other DC power projects that require deep-cycle performance.

Q: Do I need a BMS with these cells?
A: Yes. A suitable battery management system (BMS) is strongly recommended to handle cell balancing, overcharge/over-discharge protection, overcurrent protection and temperature safety for any assembled pack.

Q: How should these cells be charged?
A: Charge using a CC/CV lithium iron phosphate charger set to a maximum of 3.65V per cell, within the recommended charging temperature range of approximately -10°C to 45°C, and following the suggested current levels (typically up to 0.5C-1C as specified).

Q: Can I mix these cells with other capacities or brands?
A: Mixing different capacities, ages or brands in the same pack is not recommended. For best performance and safety, build packs using matched cells of the same model and condition.

Q: Are connection accessories included?
A: Each cell includes one metal connector, two metal nuts and two flat washers to assist with basic series or parallel connections. Additional busbars, hardware and insulation may be required depending on your final pack design.