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| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Manufacturer | LG Energy Solution, Ltd. | Model | INR21700M48A; promotion specification Rev.0 |
| Cell type | Cylindrical rechargeable lithium-ion cell | Application in this document | EV; other applications require LG Energy Solution's prior written confirmation |
| Nominal energy | 17.4Wh under standard charge and discharge | Minimum energy | 16.9Wh under standard charge and discharge |
| Nominal voltage | 3.68V | Stated C-rate basis | 1C = 4.6A; a nominal mAh capacity is not specified |
| Standard charge | CC-CV, 1.38A to 4.20V, 50mA cut-off at 25°C | Standard discharge | 0.92A to 2.50V cut-off at 25°C |
| Maximum charge by ambient temperature | 0–25°C: 1.38A; 25–40°C: 3.22A within the stated ambient operating range | Ambient operating temperature | Charge: 0–40°C; discharge: −20–50°C |
| Maximum discharge by ambient temperature | −20–10°C: 2.3A; 10–25°C: 13.8A; 25–50°C: 6.9A within the stated ambient operating range | Cell-surface protection | Control below 45°C for charging and below 55°C for discharging |
| Maximum dimensions | Diameter ≤21.15mm; height ≤70.45mm | Weight | 68.1 ± 1.0g, without washer and without tube |
| Initial impedance | AC: 14 ± 3mΩ at 1kHz; DC: 23 ± 3mΩ at 50% SOC under the specified test | Cycle-life test | ≥80% of initial energy after 1,000 cycles; 1.38A charge to 4.1V and 4.6A discharge to 3.15V at 25°C |
The LG Energy Solution INR21700M48A is a cylindrical lithium-ion cell described in a Rev.0 promotion specification for EV battery packs. The document specifies 3.68V nominal voltage, 17.4Wh nominal energy and 16.9Wh minimum energy. It is an industrial component intended for integration into a pack with protective circuitry by an eligible organization. Obtain the current final specification and confirm the intended application with LG Energy Solution before design or procurement.
The document lists 17.4Wh nominal energy and 16.9Wh minimum energy when measured under its standard charge and discharge conditions. It defines 1C as 4.6A for test-current calculations but does not separately state a nominal mAh capacity. For purchasing comparisons, keep the energy figures and their test basis together.
Maximum specified diameter is 21.15mm and maximum height is 70.45mm. The stated weight of 68.1 ± 1.0g applies to a cell without a washer or tube. Engineers should confirm the dimensions and insulation arrangement of the supplied configuration before fixing holder clearances or welded interconnect geometry.
For a complete full discharge, the listed maximum is 2.3A at −20–10°C, 13.8A at 10–25°C and 6.9A at 25–50°C within the stated ambient operating range. A pack controller must monitor temperature and adjust current accordingly. The highest listed current is not an all-temperature or cycle-life rating.
Standard charging uses 1.38A to 4.20V with a 50mA cut-off at 25°C. The maximum-current table permits 1.38A at 0–25°C and 3.22A at higher temperatures, but its upper boundary differs from the operating-temperature entry. Use 40°C as the conservative ambient upper limit until LG Energy Solution clarifies the discrepancy.
Initial AC impedance is 14 ± 3mΩ when measured at 1kHz after standard charge. Initial DC impedance is 23 ± 3mΩ at 50% state of charge using the specified load test at 25°C. The two values come from different measurement methods and should not be interchanged in pack analysis.
The promotion specification states at least 80% of initial energy after 1,000 cycles under a particular test: 1.38A charging to 4.1V with a 230mA cut-off, then 4.6A discharge to 3.15V at 25°C, with defined rest periods. A pack using other voltage or current limits may have different life.
Qualified EV pack integration: MisenBattery can discuss cell sourcing and custom EV battery pack integration with eligible battery packers, OEMs and systems integrators, subject to supply authorization and LG Energy Solution's current final specification. The cell must be installed in a pack with a compatible BMS, appropriate fusing, voltage and temperature monitoring, insulation, welded connections and thermal protection. It is not a stand-alone consumer battery. Confirm applicable product and shipment documents before making certification claims.
