INR21700-P50S — 21700 lithium-ion cell
Molicel INR21700-P50S: 5,000 mAh typical (4,900 mAh minimum), 3.6 V nominal, 60 A discharge. 5,000 mAh at 60 A standard discharge and 250 W maximum at an 83 °C cut-off — the highest power figure in the 21700 line, with a 4,900 mAh minimum rather than a typical-only rating.
Specification
INR21700-P50S parameters
| Parameter | Value |
|---|---|
| Brand | Molicel |
| Model | INR21700-P50S |
| Form factor | 21700 |
| Chemistry | NMC |
| Nominal voltage | 3.6 V |
| Typical capacity | 5,000 mAh / 18.0 Wh |
| Minimum capacity | 4,900 mAh |
| Standard charge current | 5.0 A |
| Maximum charge current | 25 A |
| Discharge current | 60 A |
| Peak discharge power | 250 W (max, 83 °C cut-off) |
| Internal resistance | AC 6 mΩ (30% SOC) · DC 13 mΩ (50% SOC) |
| Energy density | 714 Wh/L · 260 Wh/kg |
| Weight | 71 g (Max) |
| Diameter | 21.55 mm (Max) |
| Height | 70.15 mm (Max) |
| Charge temperature | -20 °C to 60 °C |
| Discharge temperature | -40 °C to 60 °C |
INR21700-P50S — specification and pack integration
5,000 mAh at 60 A standard discharge and 250 W maximum at an 83 °C cut-off — the highest power figure in the 21700 line, with a 4,900 mAh minimum rather than a typical-only rating.
What the numbers mean for a pack
- 5,000 mAh typical in a 21700 can, at 3.6 V nominal
- 60 A discharge ceiling — the pack design must hold the cell inside its temperature cut-off to use it
- 25 A maximum charge current sets the fastest realistic turnaround
- 714 Wh/L · 260 Wh/kg
- AC 6 mΩ (30% SOC) · DC 13 mΩ (50% SOC) — the figure that decides voltage sag under load
Where it is used
- Backup battery units (BBU) for data centres and AI compute racks
- eVTOL and heavy-lift drone packs where both energy and burst power bind
- Hyper-EV and motorsport traction modules
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
The manufacturer product data sheet for this model is available for download on this page. UN38.3 test summary, MSDS and transport documentation are supplied with shipment.
Specification basis: Molicel Product Data Sheet, model INR-21700-P50S (v1.1)
Compare
Other 21700 cells to quote against
| Model | Brand | Capacity | Discharge | Data sheet |
|---|---|---|---|---|
| INR21700-50S | Samsung SDI | 5,000 mAh | 25 A | Pending |
| INR21700-P50B | Molicel | 5,000 mAh | 60 A | On file |
| INR21700-M50T | LG Energy Solution | 5,000 mAh | 7.275 A | Pending |
| INR21700-P45B | Molicel | 4,500 mAh | 45 A | On file |
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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