BAK INR2170-50D2 21700 5000mAh Li-ion Battery Cell – 60A Discharge
The BAK INR2170-50D2 21700 5000mAh battery is a high-rate lithium-ion cell from Zhengzhou BAK Battery, designed for small power applications. It delivers 3.6V nominal voltage and up to 60A discharge with an 80°C temperature cut-off.
Large stock available. Competitive wholesale pricing for bulk orders.
Built for Small Power and High-Rate Applications
This cell is aimed at applications that need high current, stable cycles, and low resistance.
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60A maximum discharge with 80°C cut-off
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15A maximum charge current
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600 cycle life: ≥60% capacity after 600 cycles at 8A charge / 40A discharge
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≤4mΩ AC impedance at 1kHz
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Wide discharge range: -20°C to 60°C
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Standard 21700 dimensions: max 21.45mm diameter, max 70.75mm height
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Weight ≤69g
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Safety tested: overcharge, forced discharge, hot oven, crush, short circuit, vibration, drop, shock, low pressure, temperature cycling
Key Specifications
| Item | Specification |
|---|---|
| Model | INR2170-50D2 |
| Brand | BAK (Zhengzhou BAK Battery) |
| Rated capacity | 4950mAh |
| Typical capacity | 5000mAh |
| Nominal voltage | 3.6V |
| Rated energy | 17.82Wh |
| Typical energy | 18.00Wh |
| Charge limit voltage | 4.2V |
| Discharge cut-off voltage | 2.5V (min 2.0V) |
| Standard charge | 2475mA CC-CV, 100mA cut-off |
| Standard discharge | 990mA CC to 2.5V |
| Max charge current | 15A |
| Max discharge current | 60A (80°C cut-off) |
| AC impedance | ≤4mΩ |
| Weight | ≤69g |
| Dimensions | Max 21.45mm x 70.75mm |
| Operating temperature | Charge: 0–45°C; Discharge: -20–60°C |
| Cycle life | ≥60% after 600 cycles (8A charge / 40A discharge) |
| Shipment voltage | 3.40–3.60V |

Typical Applications
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Power tools
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E-bikes and LEVs
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Vacuum cleaners
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Energy storage and backup power
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Custom 21700 battery packs
Wholesale BAK 21700 Cells in Stock
We supply BAK INR2170-50D2 cells to overseas buyers, distributors, and OEM manufacturers. If you need a stable 21700 battery supplier for repeat orders or bulk production, we offer large stock and competitive pricing.
FAQ
What is the BAK INR2170-50D2?
It is a 21700 5000mAh battery from BAK, with 60A discharge and 15A charge capability.
How long does it last?
Tested to 600 cycles at 8A charge / 40A discharge, with ≥60% capacity retention.
Is it a standard 21700 size?
Yes. It measures max 21.45mm diameter and max 70.75mm height.
Do you offer wholesale pricing?
Yes. Pricing depends on quantity, destination, and order terms. Contact us for current bulk pricing.
Request a Quote
Send your target quantity, application, and delivery country. We will reply with current price, stock availability, MOQ, and lead time.
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