INR21700-M50T — 21700 lithium-ion cell
LG Energy Solution INR21700-M50T: 5,000 mAh typical (4,900 mAh minimum), 3.63 V nominal, 7.275 A discharge. A 5,000 mAh 21700 built for energy, not current: the 7.275 A continuous ceiling is 1.5 C, and the figure is derated below 5 °C. NMC 811 cathode with a graphite-SiOx anode.
Specification
INR21700-M50T parameters
| Parameter | Value |
|---|---|
| Brand | LG Energy Solution |
| Model | INR21700-M50T |
| Form factor | 21700 |
| Chemistry | NMC-Si |
| Nominal voltage | 3.63 V |
| Typical capacity | 5,000 mAh / 18.2 Wh |
| Minimum capacity | 4,900 mAh |
| Standard charge current | 1.455 A |
| Discharge current | 7.275 A |
| Internal resistance | DC ≈30 mΩ |
| Energy density | ≈267 Wh/kg |
| Weight | 68 g |
| Diameter | 21.10 mm |
| Height | 70.15 mm |
| Charge temperature | 0 °C to 50 °C |
| Discharge temperature | -30 °C to 60 °C |
INR21700-M50T — specification and pack integration
A 5,000 mAh 21700 built for energy, not current: the 7.275 A continuous ceiling is 1.5 C, and the figure is derated below 5 °C. NMC 811 cathode with a graphite-SiOx anode.
What the numbers mean for a pack
- 5,000 mAh typical in a 21700 can, at 3.63 V nominal
- 7.275 A discharge ceiling — the pack design must hold the cell inside its temperature cut-off to use it
- ≈267 Wh/kg
- DC ≈30 mΩ — the figure that decides voltage sag under load
Where it is used
- Residential and commercial storage modules charging and discharging at low C-rates
- E-bike packs with conservative controller limits
- Long-runtime portable equipment
Integration notes
Charge CC-CV to 4.2 V within the current limits above and stop discharge at 2.5 V. These are unprotected industrial cells: a BMS or protection circuit is required, interconnects must be resistance or laser welded rather than soldered, and cells of different model, batch or state of charge must not be mixed in one pack. Charging below 0 °C is not permitted unless the pack implements a low-temperature charge strategy.
Documentation
UN38.3 test summary, MSDS and the cell specification are available on request. Values shown here are pending verification against the manufacturer data sheet.
Specification basis: Publicly circulated LG specification — values pending verification against manufacturer datasheet
Compare
Other 21700 cells to quote against
| Model | Brand | Capacity | Discharge | Data sheet |
|---|---|---|---|---|
| INR21700-50S | Samsung SDI | 5,000 mAh | 25 A | Pending |
| INR21700-M50LT | LG Energy Solution | 4,800 mAh | 14.4 A | Pending |
| INR21700-P50B | Molicel | 5,000 mAh | 60 A | On file |
| INR21700-M58T | LG Energy Solution | 5,650 mAh | 12.5 A | Pending |
Capacity and discharge figures are the values held for each model; where no manufacturer data sheet is on file the row is marked pending rather than presented as verified.
Applications
Duties this grade of cell is specified for
Related
Where else to look
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