21700 6000mAh 3.6V Lithium-Ion Rechargeable Cell

We supply the FEB 21700-6000mAh cylindrical lithium-ion cell for battery pack builders, distributors, and OEM buyers. It delivers 6000mAh nominal capacity, 3.6V nominal voltage, and stable performance for volume production.

Large stock is available. We offer competitive wholesale pricing for bulk orders.

Why Buyers Choose This 21700 Cell

• 6000mAh nominal capacity — 5850mAh minimum

• 3.6V nominal voltage — 4.2V charge cut-off, 2.5V discharge cut-off

• Low internal resistance — ≤25mΩ

• Long cycle life — ≥70% capacity after 600 cycles

• High energy density — 296Wh/kg, ≤75g per cell

• Standard 21700 size — 21.65mm diameter × 70.95mm height

• Discharge capability — 2C (12A) at 0–35°C; 1C (6A) at 35–45°C and -20–0°C

• Charging — 0.5C standard; up to 0.7C at 15–45°C

Built for Battery Pack Assembly

This rechargeable 21700 cell is suitable for battery pack assembly where high capacity and consistent performance are required. For series or parallel packs, use cells from the same grade and batch. We recommend a voltage difference within 20mV and internal resistance difference within 6mΩ.

Do not solder cells directly. Resistance welding or laser welding is recommended.

Safety and Quality

The cell is tested for overcharge, over-discharge, short circuit, drop, heating, seawater immersion, and low pressure. Test criteria require no explosion and no fire.

One-year coverage applies to manufacturing-related quality issues under normal use. Performance depends on proper pack design, charging, and temperature control.

Storage and Handling

Store in a dry, non-corrosive environment. For long-term storage, keep the cell at 10–35% SOC. Recharge if storage exceeds 12 months. Do not use cells below 2.5V.

Packaging and Supply

• 100 pcs / inner box

• 200 pcs / outer carton

• 16,000 pcs / pallet

• Large stock available for bulk orders

• Competitive wholesale pricing based on quantity

If you are sourcing a reliable 21700 6000mAh supplier, wholesale 21700 cells, or a 21700 6000mAh datasheet, our team can support your battery pack projects with stable supply and responsive service.

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