Product Details
CALB 163Ah 3.2V LiFePO4 prismatic cells are designed for builders, installers and energy-storage projects that need a large-format rechargeable LFP cell. Typical applications include solar storage, off-grid batteries, RV and marine systems, and custom DIY battery packs.
Build Your Battery Pack
Combine CALB 163Ah cells in series to build common 12V, 24V and 48V LiFePO4 battery systems.
| Configuration | Nominal Voltage | Battery Capacity | Nominal Energy |
|---|---|---|---|
| 4S / 4 Cells | 12.8V | 163Ah | 2.09kWh |
| 8S / 8 Cells | 25.6V | 163Ah | 4.17kWh |
| 16S / 16 Cells | 51.2V | 163Ah | 8.35kWh |
Not sure which configuration you need? Tell us your system voltage, inverter power and required runtime. AmpBird can help you check the cell quantity and BMS configuration before ordering.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | CALB |
| Battery Chemistry | LiFePO4 (LFP) |
| Cell Type | Prismatic LiFePO4 Battery Cell |
| Nominal Voltage | 3.2V |
| Nominal Capacity | 163Ah |
| Nominal Energy | 521.6Wh |
| Internal Resistance | ≤ 0.3mΩ |
| Charge Cut-off Voltage | 3.65 ± 0.05V |
| Discharge Cut-off Voltage | 2.0 ± 0.05V |
| Standard Charge Rate | 0.5C |
| Maximum Charge Rate | 1C |
| Standard Discharge Rate | 0.5C |
| Maximum Continuous Discharge Rate | 1C |
| Maximum Pulse Discharge Rate | 3C |
| Charging Temperature Range | -5°C to 60°C |
| Discharging Temperature Range | -20°C to 60°C |
| Dimensions (L × W × H) | 173 × 36 × 217 mm |
| Approx. Cell Weight | 3.19 ± 0.15 kg |
Dimensions exclude terminal studs. Actual performance may vary depending on operating temperature, charge/discharge rate, BMS settings and battery pack design.
Cell Quality & Matching
Cells are supplied as brand-new Grade A CALB LiFePO4 cells. For multi-cell orders, AmpBird can check:
• Production batch consistency
• QR code and physical condition
• Open-circuit voltage
• Internal resistance
• Terminal condition
Capacity testing or specific matching requirements can also be discussed before ordering.
What's Included
For a 4-cell set:
4 × CALB LiFePO4 cells with welded threaded studs
4 × Busbars
（Epoxy insulation sheets available upon request）
Choosing a BMS
The BMS must match both your series configuration and the maximum current required by your system.
4S → 12.8V LiFePO4 BMS
8S → 25.6V LiFePO4 BMS
16S → 51.2V LiFePO4 BMSBMS current should be selected according to your inverter, charger and expected load — not simply the cell's Ah rating.
”Not sure which BMS you need? Contact AmpBird with your system voltage and inverter power.”
DDP Door-to-Door Shipping
We offer DDP shipping to eligible destinations. Customs clearance, import duties and applicable taxes are included, so no additional import charges are required upon delivery.
Your order will be delivered directly to your address by UPS, GLS or other local logistics partners.
“Please contact us to confirm DDP availability for your destination.”
When Your Cells Arrive
Inspect the packaging and cells before assembly. Check for visible damage, terminal condition and cell voltage.
If you notice shipping damage or an abnormal cell, contact AmpBird before installing or cycling the cells.
Why Choose AmpBird Cells
The foundation of every great battery build.
LiFePO4 Chemistry
Thermal stable, non-flammable, 3,000-8,000 cycle lifespan. The only safe choice for home energy storage.
Grade A Cells Only
Every cell batch-tested for capacity, internal resistance, and voltage before shipping. No B-grade, no surprises.
Deep Cycle Ready
Designed for 80% DoD daily discharge. Solar cycling, off-grid loads, and backup power -- built for real use.
-20℃ to 60℃ Operating
Wide temperature tolerance. Reliable in unheated garages, outdoor cabinets, and marine environments.
Compact Prismatic Form
Prismatic cells stack efficiently with minimal wasted space. Higher energy density than cylindrical cells.
Low Self-Discharge
< 3% monthly self-discharge rate. Store seasonally and come back to a full charge.
QUESTIONS & ANSWERS
