BAK N21700CX-65E 21700 lithium-ion cell 6500mAh

New N21700CX-65E 21700 Li-ion Cell — Promo Pricing & Stock

New Product: N21700CX-65E 21700 Li-ion Cell — Promotional Pricing and Large Stock Available

We are introducing the N21700CX-65E, a 21700 lithium-ion cell for battery pack builders, OEM buyers, and energy storage suppliers.

As a new product introduction, we are offering favorable promotional pricing and have large stock available for allocation. This is suitable for sample evaluation, initial production runs, and repeat orders.

BAK N21700CX-65E 21700 lithium-ion cell 6500mAh

What it is

The N21700CX-65E is a cylindrical rechargeable Li-ion cell.

Key points:

  • Nominal voltage: 3.5V
  • Rated capacity: 6350mAh
  • Typical capacity: 6500mAh
  • Typical energy: 22.75Wh
  • 21700 format: max 21.7mm diameter, max 71.0mm height
  • Weight: ≤75g
  • AC internal resistance: ≤8mΩ at 1000Hz

For pack design, use the rated capacity for conservative calculations.

Why buyers may consider it

  • 6.5Ah-class capacity in a standard 21700 size
  • 501-cycle life with ≥80% capacity retention at 25°C
  • 3C discharge retains ≥90% capacity
  • Maximum discharge current: 19050mA
  • Maximum charge current: 12700mA
  • Low internal resistance supports pack efficiency

These features suit e-mobility, power tools, portable energy storage, and other pack applications. Final performance depends on pack design, BMS settings, and thermal management.

Charging and temperature limits

Standard charge: 3175mA to 4.2V, then constant voltage to 100mA.

The normal charge limit is 4.20V. The upper limit is 4.25V, but charging above 4.20V is not recommended for performance.

Temperature range:

  • Charging: 0°C to 45°C
  • Discharging: -20°C to 60°C
  • Max surface temperature: 65°C charging, 80°C discharging

Recharge only after the cell cools to ≤45°C. Re-discharge only after cooling to ≤60°C.

Safety and documents

The specification covers safety tests such as short circuit, overcharge, forced discharge, low pressure, temperature cycling, vibration, shock, drop, crush, impact, 130°C hot oven, and combustion injection.

Most tests reference GB31241. The shock test references UL1642.

Buyers can request MSDS, UN38.3 reports, and relevant test reports before ordering.

Traceability and packaging

Each cell is marked with model, manufacturer, grade, voltage, capacity, energy, batch number, serial number, polarity marks, and barcode.

This supports quality tracking and after-sales handling.

Standard packaging is 130 cells per small box, then into big boxes and pallets. Confirm carton and pallet details with us for your logistics planning.

Shipping and storage

Shipping voltage: 3.40V to 3.60V.

For long-term storage, keep the cell at 3.40V to 3.60V.

Storage time:

  • -20°C to 25°C: less than 1 year
  • -20°C to 45°C: less than 3 months
  • -20°C to 60°C: less than 1 month

Humidity: 0–60% RH, non-condensing.

New product offer

As a new product introduction, we are offering promotional pricing and have large stock available.

This is a good opportunity for buyers who need fast allocation, sample testing, or initial production support.

Pricing and stock allocation depend on quantity, destination, and required documents.

Request a quote

To get a fast quotation, send us:

  • Pack voltage and capacity
  • Continuous and peak discharge current
  • Expected cycle life
  • Charging method and BMS requirements
  • Operating temperature range
  • Order quantity and destination
  • Required documents: MSDS, UN38.3, test reports
  • Cell grade and matching requirements

Contact us now for current promotional pricing, stock availability, lead time, and shipping options

Get a wholesale quote today: [www.alibababecell.com]

BAK N21700CX-65E 21700 cell

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