INR2170-50D2 21700 Lithium-Ion Cell – 5000mAh, 3.6V, 60A High-Drain
Looking for a reliable 21700 battery for high-drain applications? The BAK INR2170-50D2 is a cylindrical 21700 lithium-ion cell with 5000mAh typical capacity, 3.6V nominal voltage, and 60A max discharge. We supply bulk stock at competitive wholesale prices.
Key Features
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Model: INR2170-50D2
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Cell type: Cylindrical rechargeable lithium-ion cell
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Typical capacity: 5000mAh
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Rated capacity: 4950mAh
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Nominal voltage: 3.6V
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Max discharge current: 60A with 80°C temperature cut
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Max charge current: 15A
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Low internal resistance: ≤4mΩ
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Long cycle life: ≥2970mAh after 600 cycles
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Safety tested with reference to UL1642, IEC62133, and GB31241
Specifications
| Item | Specification |
|---|---|
| Model | INR2170-50D2 |
| Manufacturer | Zhengzhou BAK Battery Co., Ltd. |
| Cell type | Cylindrical lithium-ion rechargeable cell |
| Diameter | Max. 21.45mm |
| Height | Max. 70.75mm |
| Weight | ≤69g |
| Nominal voltage | 3.6V |
| Rated capacity | 4950mAh |
| Typical capacity | 5000mAh |
| Rated energy | 17.82Wh |
| Typical energy | 18.00Wh |
| Charging limit voltage | 4.2V |
| Upper limited charging voltage | 4.25V max. Do not exceed. |
| End of discharge voltage | 2.5V |
| Discharge cut-off voltage | 2.0V min. Do not go below. |
| Standard charge | 2475mA to 4.2V, then CV to 100mA |
| Standard discharge | 990mA to 2.5V |
| Max charge current | 15A |
| Max discharge current | 60A with 80°C temperature cut |
| Internal resistance | ≤4mΩ AC, 1000Hz |
| Cycle life | ≥2970mAh after 600 cycles at 40A discharge |
| Charging temperature | 0~45°C |
| Discharging temperature | -20~60°C |
| Storage temperature | 1 year: -20~25°C; 3 months: -20~45°C; 1 month: -20~60°C |
| Humidity | 0~60% RH, non-condensing |
| Shipment voltage | 3.40~3.60V |
Performance You Can Rely On
The INR2170-50D2 delivers stable performance in 21700 battery packs, power tools, e-bikes, e-scooters, vacuum cleaners, drones, and portable energy storage systems.
It supports 10A, 20A, 30A, and 40A discharge tests and maintains strong capacity across temperatures:
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25°C: 100%
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60°C: ≥95%
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0°C: ≥90%
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-10°C: ≥85%
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-20°C: ≥80%
Safety and Reliability
This high-drain 21700 cell is tested for vibration, drop, overcharge, forced discharge, 130°C hot oven, crush, short circuit, low pressure, shock, and temperature cycling.
Safety test references include UL1642, IEC62133, and GB31241. Proper BMS protection and thermal management are required for safe pack design.
Bulk Stock and Wholesale Pricing
We have large stock of INR2170-50D2 21700 cells ready to ship. Discounted pricing is available for bulk orders.
If you are searching for a wholesale 21700 battery supplier, bulk 21700 cells, or a reliable 5000mAh 21700 lithium-ion cell, contact us for current availability.
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