21700 6500mAh Lithium Ion Battery | Wholesale INR21700/65

INR21700/65 6500mAh 3.5V Li-ion cell. Up to 12.5A discharge, ≤25mΩ, 500-cycle life. Large stock at wholesale prices. Contact us for a quote.

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INR21700 6500mAh Li-ion Cell (INR21700/65)

High-capacity 21700 rechargeable lithium-ion cell for battery pack manufacturers and industrial buyers. Large stock available. Competitive wholesale pricing.

Overview

The INR21700/65 is a 6500mAh, 3.5V nominal lithium-ion cell. It offers high capacity, stable performance, and the standard 21700 form factor. It is suitable for B2B customers who need reliable cells for pack assembly and industrial applications.

Key Features

  • 6500mAh nominal capacity

  • 3.5V nominal voltage, 4.2V charge limit, 2.5V discharge cut-off

  • Max charge current: 4500mA

  • Recommended discharge: 7500mA; max discharge: 12500mA

  • Low ACIR: ≤25mΩ

  • Lightweight: ≤74g

  • CID protection, PTC-free

  • Cycle life: ≥80% capacity retention after 500 cycles at 25±2°C

  • Tested to IEC62133-2, UN38.3, UL1642, GB31241

Specifications (Summary)

Item Specification
Model INR21700/65
Nominal capacity 6500mAh
Nominal voltage 3.5V
Charge voltage 4.20V
Discharge cut-off 2.5V
Standard charge 1250mA CC/CV, 125mA cut-off
Max charge current 4500mA
Recommended discharge 7500mA
Max discharge current 12500mA
ACIR ≤25mΩ
Weight ≤74g
Dimensions D ≤21.75mm, H ≤71.00mm
Cycle life ≥80% @ 500 cycles (25°C, 3A/7.5A)
Warranty 1 year from shipment
INR21700-6500D 21700 Battery Cell Internal Resistence & Weight
INR21700-6500D 21700 Battery Cell Internal Resistence & Weight

Safety & Compliance

The cell is tested according to major international standards, including IEC62133-2, UN38.3, UL1642, and GB31241. Safety tests cover low pressure, thermal shock, drop, hot-box, seawater immersion, overcharge, forced discharge, and external short circuit.

Storage & Handling

  • Store at 25–50% SOC in a cool, dry, well-ventilated area.

  • Storage time: up to 12 months at -20 to 25°C; up to 3 months at 25 to 45°C; up to 1 month at 45 to 65°C.

  • Recharge to 25–50% SOC after long storage.

  • Do not charge below 0°C. Do not short-circuit, disassemble, immerse in water, or expose to fire.

Supply & Pricing

We carry large inventory of the INR21700/65 and offer competitive pricing for volume orders. Stable supply and fast quotation are available for pack manufacturers, distributors, and industrial buyers.

Request a Quote

Send us your required quantity, application, and destination. We will provide price, lead time, and shipping details. Contact us today for wholesale pricing and the full datasheet.

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