Description
The IFR32140 3.2V 15Ah LiFePO4 battery cell is a large-format rechargeable cylindrical cell designed for compatible energy-storage and battery-pack applications.
The cell supplied by ArcEin is marked IFR32140-15Ah, 3.2V, 15Ah and 48Wh, making it considerably larger in capacity and physical size than common cylindrical cells such as 18650 batteries.
Lithium Iron Phosphate (LiFePO4/LFP) chemistry is widely used for energy-storage and battery-pack applications where rechargeable operation and stable battery chemistry are required.
The nominal energy calculation is:
3.2V × 15Ah = 48Wh
Comparable IFR32140-15Ah specifications also identify approximately 33.2mm diameter × 140mm length and a typical full-charge cut-off of around 3.65V.
Important: This listing is for one individual battery cell, not a complete battery pack. A suitable BMS, LiFePO4 charging system and proper cell assembly are required when building multi-cell battery packs.
Specifications
| Specification | Details |
|---|---|
| Model | IFR32140-15Ah |
| Cell size | 32140 |
| Chemistry | LiFePO4 / Lithium Iron Phosphate |
| Battery type | Rechargeable cylindrical cell |
| Nominal voltage | 3.2V |
| Nominal capacity | 15Ah / 15000mAh |
| Nominal energy | 48Wh |
| Typical full-charge voltage | 3.65V |
| Approx. dimensions | 33 × 140mm |
| Terminal style | Flat cylindrical terminals |
| Rechargeable | Yes |
| Quantity | 1 cell |
| Brand | Unbranded / manufacturer not specified |
Common Applications
- Solar energy-storage battery packs
- UPS and backup-power battery packs
- DIY LiFePO4 battery packs
- Portable energy-storage systems
- Robotics projects
- Compatible electric mobility applications
- RV and camping power systems
- Battery-bank projects
- Renewable-energy storage
- Custom 12V / 24V / 48V LiFePO4 battery projects
Comparable 32140 LiFePO4 cells are marketed for solar storage, EV/transport, RV, power-storage and other battery-pack applications.
Charging Information:
Battery chemistry: LiFePO4
Nominal cell voltage: 3.2V
Typical charging method: CC/CV
Typical charge cut-off: 3.65V per cell
Published IFR32140-15Ah specifications use CC/CV charging to approximately 3.65V.
⚠️ Important Charging Notice
Use only a charger specifically suitable for LiFePO4 batteries.
Do not use charging settings intended for standard 3.6V/3.7V lithium-ion cells such as ordinary 18650 cells.
For multi-cell battery packs, use an appropriately rated LiFePO4 BMS for cell monitoring, balancing and protection.
Safety Information
Do not short-circuit the positive and negative terminals. Do not puncture, crush, dismantle or expose the cell to fire or excessive heat.
Do not reverse polarity or mix cells of substantially different capacity, condition, chemistry or state of charge in the same battery pack.
Use appropriate insulation around terminals during storage and transportation. Battery-pack assembly should be carried out by someone familiar with lithium battery construction and BMS selection.
Do not solder directly to the cell unless the cell/supplier specifically permits the assembly method and appropriate equipment/procedure is used.
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