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| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Brand | Gotion / Guoxuan High-Tech | Model | IFR32135-15Ah |
| Manufacturer | Hefei Guoxuan High-Tech Power Energy Co., Ltd. | Chemistry | Lithium Iron Phosphate (LiFePO4 / LFP) |
| Cell Format | 32135 cylindrical cell with terminals at both ends | Intended Use | Electric vehicle battery systems |
| Rated Capacity | ≥15Ah | Nominal Voltage | 3.2V at 0.33C; 3.1V at 1C |
| Approx. Nominal Energy | 48Wh based on 3.2V and 15Ah | Cell Weight | 268 ± 5g |
| Cell Dimensions | Ø33.4 ± 0.2 × 139.8 ± 0.5mm, including terminals | Can Body Height | 136 ± 0.2mm |
| Working Voltage Range | 2.0V to 3.65V above 0°C; 1.8V to 3.65V at or below 0°C | Maximum Working Voltage | 3.65V |
| Reference Charge Method | 7.5A to 3.5V, then 3A to 3.65V, followed by CV to 0.75A | Reference Discharge | 15A / 1C to 2.0V at 25 ± 2°C |
| AC Resistance | 1.5mΩ to 3mΩ at 25 ± 2°C | DC Resistance | <8mΩ at 50% SOC and 25 ± 2°C |
| Operating Temperature | Charge: 0°C to 55°C; discharge: -30°C to 60°C | Preferred Temperature | 10°C to 35°C |
| Cycle Life at 25°C | 2000 cycles to 80% capacity retention | High-Temperature Cycles | 1000 cycles at 45°C; 800 cycles at 55°C, both to 80% |
| Long-Term Storage | ≤35°C at 30% to 50% SOC; recharge every 3 months | Environmental Declaration | RoHS restricted-substance declaration included in the specification |
The Gotion IFR32135-15Ah is a 3.2V cylindrical LiFePO4 cell developed for electric vehicle battery systems and professional pack integration. It combines at least 15Ah capacity with low resistance, wide-temperature discharge operation and documented 2000-cycle performance. Its terminals at both ends require purpose-designed holders, interconnections, insulation and mechanical support rather than treatment as a consumer replaceable battery.
The cell provides at least 15Ah capacity with a nominal voltage of 3.2V at 0.33C, corresponding to approximately 48Wh of nominal energy. At a 1C discharge rate, the specified nominal voltage is 3.1V. These conditions should remain attached to energy and pack-runtime calculations.
The coated cylindrical cell measures 33.4 ± 0.2mm in diameter and 139.8 ± 0.5mm in total height, including the terminals. Its can body is 136 ± 0.2mm high and cell weight is 268 ± 5g. Pack tooling must accommodate all tolerances and the terminal geometry shown in the manufacturer drawing.
AC resistance is specified between 1.5mΩ and 3mΩ at 25 ± 2°C, while DC resistance is below 8mΩ at 50% SOC and 25 ± 2°C. Detailed DCR maps are provided across different temperatures and states of charge, supporting application-specific power and thermal calculations.
The reference room-temperature method charges at 7.5A to 3.5V, reduces current to 3A until 3.65V, and then holds 3.65V until current falls to 0.75A. Charging from 0°C to 55°C must follow the manufacturer’s stepped current matrix, while charging below 0°C is prohibited.
Discharge operation is specified from -30°C to 60°C, with maximum cell temperature limited to 60°C. During defined 1C capacity tests, retention is at least 70% at -20°C and 55% at -30°C. The discharge voltage threshold changes with temperature and must be reflected in BMS settings.
At 25°C, the cell is specified to retain 80% capacity after 2000 cycles using the applicable 25°C charging method and 1C discharge to 2.0V. The specification also lists 1000 cycles at 45°C and 800 cycles at 55°C, each measured to the same 80% retention threshold.
Custom battery pack applications: Misenpower supplies Gotion cells and supports custom integration for electric vehicles, industrial equipment, stationary energy storage and backup-power systems. Every pack requires a compatible BMS, correctly rated fuse, manufacturer-approved welded or mechanical interconnects, voltage and temperature sensing, terminal insulation, cell spacing, mechanical restraint and suitable thermal design. The source specification includes a RoHS restricted-substance declaration; supporting CE, UN38.3 and UL documentation should be confirmed for the applicable product and shipment before ordering.
