INR18650-3350mAh-3C
Maximum energy density in 18650 form factor for long-endurance applications.
Product Overview
The INR18650-3350mAh-3C represents the upper tier of 18650 energy density. At 3350mAh nominal capacity with 3C discharge capability, it maximizes runtime without leaving the standard 18650 ecosystem. This cell uses a high-nickel NMC cathode formulation to push energy density while retaining reasonable cycle life. It earned its spot through the highest verified capacity in our 18650 evaluation pool — and the most consistent across 5 production batches.
Specifications
| Parameter | Value |
|---|---|
| Model | INR18650-3350mAh-3C |
| Form Factor | 18650 Cylindrical |
| Chemistry | NMC — High-Nickel |
| Nominal Capacity | 3350mAh |
| Nominal Voltage | 3.6V |
| Max Continuous Discharge | 3C (10.05A) |
| Cycle Life | ≥400 cycles (80% retention) |
| Internal Resistance | ≤35mΩ (AC, 1kHz) |
| Dimensions | 18.4mm × 65.1mm |
| Weight | ~48g |
| Operating Temperature | Charge 0°C~45°C | Discharge -20°C~60°C |
Key Features
- 3350mAh — highest in class — maximize pack energy without increasing cell count
- High-nickel NMC cathode — enhanced energy density formulation
- 3C continuous — sufficient for moderate-drain applications
- Compact design — standard 18650 footprint, no mechanical redesign needed
Applications
- Ultra-long-range e-bike batteries
- Portable power stations
- Solar storage packs
- IoT/remote monitoring battery packs
- Medical carts and mobile workstations
Why We Chose This Cell
When every gram and cubic centimeter counts, this cell delivers. At 3350mAh, a 10S5P pack provides 167.5Wh — nearly 30% more than the same configuration using 2600mAh cells. For e-bike manufacturers targeting 100km+ range claims, this cell makes it possible without upsizing to 21700. Trade-off: cycle life at ~400 cycles is lower than the 2600mAh variant. We recommend it for applications prioritizing range over cycle count.
Certifications
- UN38.3 / MSDS / IEC62133 / CE / RoHS / REACH
FAQ
MOQ?
From 1,000 cells. Samples available.
Is cycle life sufficient for daily-use e-bikes?
At 400 cycles and average 50km per charge, that’s 20,000km — ~5 years of typical commuter use.
Request a Quote
Tell us your application and volume. Response within 24 hours.