GEB 33155 3.2V 15Ah Cylindrical LiFePO4 Battery Cell (Threaded Terminals, 33×155mm)
Grade-A GEB 33155 3.2V 15Ah cylindrical LiFePO4 battery cell (Ø33.0×155.0mm, 280g, 48Wh) with M6 threaded terminals, low IR, and 2000+ cycles for solar ESS and EV utility vehicles.
B2B Engineering Review & Pricing
Direct manufacturer supply, custom BMS telemetry, and CAD fit validation for OEM/ODM projects.
Product Details
The GEB 33155 3.2V 15Ah Cylindrical LiFePO4 Battery Cell (Threaded Terminals, 33×155mm) is an industrial-grade Lithium Iron Phosphate (LiFePO4) large-format cylindrical power cell delivering a verified 3.2V nominal operating voltage and 15Ah rated capacity (48.0Wh total energy). Built with an intrinsically safe LiFePO4 olivine chemistry, this cell provides superior thermal runaway resistance, extended cycle endurance (≥ 2,000–3,500 cycles at 80% DoD), and ultra-low internal AC resistance (≤ 4.0 mΩ). Equipped with heavy-duty M6 threaded stud terminals on both polarities, it eliminates complex spot welding, enabling bolt-on copper busbar assembly for high-drain commercial ESS, electric utility vehicles, solar street lighting, and automated guided vehicles (AGVs).
Product Overview
The GEB 33155 3.2V 15Ah Cylindrical LiFePO4 Battery Cell (Threaded Terminals, 33×155mm) is an engineered large-format cylindrical cell manufactured to strict electrochemical tolerances for high-reliability modular energy systems. Featuring a 3.2V nominal voltage and 15Ah rated capacity (48.0Wh), this cell incorporates an automated pressure-relief safety valve, a rugged nickel-plated steel canister, and ultra-low internal resistance. With calibrated physical dimensions of Ø 33.0 ± 0.5 mm × H 155.0 ± 1.0 mm (total height with threaded studs ~168mm) and a net weight of Approx. 280g ± 10g, it is engineered for high-power electric mobility, commercial solar energy storage, AGVs, and backup power modules. Integrated M6 threaded terminals provide solid mechanical fastening and low contact resistance.
Product Specifications
| Feature / Attribute | Technical Specification |
|---|---|
| Battery Chemistry | Lithium Iron Phosphate (LiFePO4 Cylindrical) |
| Nominal Voltage & Capacity | 3.2V / 15Ah (48.0Wh) |
| Physical Dimensions & Weight | Ø 33.0 ± 0.5 mm × H 155.0 ± 1.0 mm / Approx. 280g ± 10g |
| Continuous Discharge Rating | 1.0C–3.0C (15A–45A continuous discharge) |
| Peak Pulse Discharge | 5.0C (75A peak pulse ≤ 5s) |
| Target Applications | High-power electric mobility, solar street lighting, commercial energy storage systems (ESS), AGVs, robotics |
| Terminal Form Factor | M6 Threaded Stud Terminals (Bolt-on busbar connection) |
| Service Life / Endurance | ≥ 2,000–3,500 cycles (@ 80% DoD, 25°C, 1C rate) |
Technical Specifications
| Parameter | Value | Test Conditions & Engineering Tolerances |
|---|---|---|
| Nominal Operating Voltage | 3.2V | Standard measurement @ 25°C, 0.2C rate |
| Upper Voltage / Cutoff | 3.65V ± 0.03V (LiFePO4 CC/CV mode) | Standard LiFePO4 charge regulation threshold |
| Discharge Lower Cutoff | 2.50V ± 0.05V | Safety lower voltage cutoff threshold |
| Internal AC Resistance (1kHz) | ≤ 4.0 mΩ | 1kHz AC test @ 25°C fully charged state |
| Cell Consistency Screening | ΔV ≤ 3mV | ΔR ≤ 0.8mΩ | Pre-assembly automated barcode classification SOP |
| Operating Temperature Range | Charge: 0°C to +45°C | Discharge: -20°C to +60°C | Ambient environmental test qualification |
Equipment Compatibility & Engineering Fit Check
Before deploying GEB 33155 3.2V 15Ah Cylindrical LiFePO4 Battery Cell (Threaded Terminals, 33×155mm), verify these verified electrical and mechanical boundary requirements:
Operational Boundary Conditions
✔ Recommended Fit & Use Cases:
- Electronic devices and OEM packs matched with 3.2V / 15Ah power curves.
- Commercial designs requiring high volumetric energy density and predictable discharge curves.
- Projects requiring batch consistency with automated barcode impedance sorting.
⚠ Operational Constraints & Limits:
- Do not discharge below minimum cutoff voltage or charge beyond 3.65V.
- Maintain operational surface temperature within -20°C to +60°C discharge (0°C to +45°C charge).
- Ensure connector polarity and pin assignment match system schematics prior to initial power-up.
First-Party Manufacturing SOP & Export Compliance
Technical Whitepapers & Engineering Guides
High-Performance Cylindrical Batteries: 16 Years of B2B Manufacturing
Technical breakdown of automated cell sorting, delta IR matching, laser welding busbars, and cycle aging protocols.
Industrial Cylindrical Batteries: QC, Aging and Test Standards
Key factory inspection criteria for cylindrical packs, thermal management, vibration testing, and BMS protection thresholds.
How Long Is the Life of a Polymer Lithium Battery? Cycle Life, Degradation Mechanisms & Design Guide
Understand lithium polymer (LiPo/pouch cell) battery cycle life: typical 300–800 cycles, SEI growth, pouch swelling, C-rate impact, and OEM lifetime extension methods.
