Li-Ion 18650 Battery 3.6V 3500mAh 10A Ø18.55x65.1mm

The Li-Ion 18650 3.6V 3500mAh Battery is a rechargeable lithium-ion cylindrical cell in 18650 format, intended for integration into battery modules, battery packs and electronic equipment with suitable protection circuitry.

With a nominal voltage of 3.6V, typical capacity of 3500mAh and indicated maximum current of 10A, this cell offers a good balance between capacity, runtime and discharge capability for technical and industrial applications.

Its approximate dimensions of Ø18.55 x 65.1 mm make it compatible with many 18650-based systems, provided that the equipment or module includes proper electronic protection against overcharge, over-discharge, short circuit, overcurrent and temperature.

This cell does not include internal protection, so it must not be used loose or in equipment without protection circuitry. It is intended for professional use, battery pack assembly with BMS/PCM, technical repair, controlled electronics projects and applications where safe battery management is provided.

Main features

• Rechargeable Li-Ion cell
• Format: 18650
• Indicated model: 18650 / MR18650
• Datasheet model: BAK N18650CR-35T
• Nominal voltage: 3.6V
• Typical capacity: 3500mAh
• Minimum rated capacity: 3360mAh
• Typical energy: 12.60Wh
• Rated energy: 12.10Wh
• Indicated maximum current: 10A
• Datasheet maximum discharge current: 10080mA / 3C
• Standard charging current: 1680mA / 0.5C
• Standard discharging current: 672mA / 0.2C
• Charge limit voltage: 4.20V
• Standard end-of-discharge voltage: 2.50V
• Absolute minimum discharge voltage: 2.00V
• Internal resistance: ≤30mΩ
• External dimensions: Ø18.55 x 65.1 mm
• Indicated maximum weight: 49g
• Unprotected cell
• Designed for use with PCM/BMS
• Recommended only for professional or technically qualified users

Indicated operating temperatures

• Charging temperature: 0°C to 45°C
• Discharging temperature: -40°C to 60°C
• Storage up to 1 month: -20°C to 60°C
• Storage up to 3 months: -20°C to 45°C
• Storage up to 1 year: -20°C to 25°C
• Storage humidity: up to 60% RH, non-condensing

Recommended applications

• Li-Ion 18650 battery packs
• Modules with BMS/PCM protection
• Compatible DC UPS and battery boxes
• Controlled electronics projects
• Industrial equipment
• Portable power systems
• Flashlights or equipment compatible with unprotected 18650 cells, only if they include their own protection
• Technical repair of battery packs
• Test bench and development work
• Maker projects with safe charge and discharge management

Important safety note

This cell does not include an internal protection circuit. It must only be used in equipment, modules or packs with suitable PCM/BMS electronic protection. Incorrect use may cause leakage, overheating, fire or explosion.

Do not short-circuit, reverse polarity, solder directly to the terminals, open, puncture, expose to heat, fire or water, mix with cells of different type, capacity, age or charge level, or use damaged/deformed cells.

For battery pack assembly, cells should be selected and matched with similar characteristics and charged using a suitable Li-Ion charger.