INR21700-5000mAh-3C
Maximum energy 21700 cell. 5000mAh for the longest runtime per cell.
Product Overview
The INR21700-5000mAh-3C is the energy density champion of our curated selection. At 5000mAh in a single 21700 cell — that’s equivalent to two 2500mAh 18650s in parallel, but in the footprint of 1.5 cells. For energy storage systems, long-range e-bikes, and portable power applications where runtime trumps all, this cell delivers unmatched pack-level simplicity: fewer cells, fewer welds, fewer BMS channels.
Specifications
| Parameter | Value |
|---|---|
| Model | INR21700-5000mAh-3C |
| Form Factor | 21700 Cylindrical |
| Chemistry | NMC — High-Energy |
| Nominal Capacity | 5000mAh |
| Nominal Voltage | 3.6V |
| Max Continuous Discharge | 3C (15A) |
| Cycle Life | ≥500 cycles (80% retention) |
| Internal Resistance | ≤20mΩ (AC, 1kHz) |
| Dimensions | 21.2mm × 70.2mm |
| Weight | ~69g |
| Operating Temperature | Charge 0°C~45°C | Discharge -20°C~60°C |
Key Features
- 5000mAh capacity — best-in-class energy per cell
- 3C discharge (15A) — sufficient for most energy-storage and light EV applications
- 500+ cycles — durable enough for daily cycling
- Energy density: ~260Wh/kg — among the highest in mass-produced cylindrical cells
Applications
- Residential/small commercial energy storage
- Long-range e-bike and e-scooter batteries
- Portable power stations (high Wh models)
- Camping and off-grid power
- Solar generator battery packs
Why We Chose This Cell
A 10S4P pack built with this cell delivers 720Wh — enough to power a home refrigerator for 4-6 hours. With only 40 cells and 40 weld points, assembly complexity and BMS channel count are dramatically lower than equivalent 18650-based packs. For energy storage integrators and portable power station brands, this cell’s energy density and cycle life combination is the strongest we’ve tested in the 21700 format.
Certifications
- UN38.3 / MSDS / IEC62133 / CE / RoHS / REACH
FAQ
Can this cell handle motor startup surges?
3C continuous (15A) is sufficient for steady-state operation of most e-bikes. Brief surges up to 5C (25A) are tolerated. For applications with frequent high-current spikes, consider the INR21700-4000mAh-7C instead.
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