The EVE C40 KS V2.1 40135 20Ah is a high-performance cylindrical rechargeable battery cell manufactured by EVE Energy.

Designed for high-capacity battery packs, energy storage systems, electric vehicles, and industrial applications, this cell combines high energy capacity with excellent current delivery capabilities.

With a nominal capacity of 20Ah and a maximum discharge current of 80A (4C), the EVE C40KS-V2.1 is suitable for demanding applications requiring reliable power delivery.

The cylindrical 40135 form factor allows flexible battery pack configurations and efficient integration into custom battery assemblies.

Supplied with battery cell holders, this product offers convenient mechanical positioning and assembly when building battery modules.

Its high discharge capability and wide operating temperature range make it suitable for a variety of energy storage and electric mobility applications.

Technical Specifications

• Manufacturer: EVE Energy

• Model: C40KS-V2.1

• Cell format: 40135

• Cell type: Cylindrical rechargeable battery

• Nominal capacity: 20Ah

• Minimum capacity: 19.5Ah

• Nominal voltage: 3.2V (subject to confirmation)

• Nominal energy: 64Wh (at 3.2V)

• Operating voltage range: 2.5–3.65V

• Standard charging current: 10A (0.5C)

• Maximum continuous charging current: 20A (1C)

• Maximum discharge current: 80A (4C)

• Diameter: 40.5 ± 0.3mm

• Height with terminals: 135.0 ± 0.5mm

• Height without terminals: 132.6 ± 0.3mm

• Weight: 372.5 ± 5g

• Charging temperature: 0°C to +55°C

• Discharging temperature: −20°C to +60°C

• Package: Battery cell with holders

Key Features

• High nominal capacity of 20Ah.

• Maximum discharge current of 80A.

• Cylindrical 40135 form factor.

• Suitable for high-current battery applications.

• Flexible battery pack configurations.

• Wide discharge temperature range.

• Supplied with battery cell holders.

• Manufactured by EVE Energy.

Applications

• Energy Storage Systems (ESS).

• Solar energy storage.

• Backup power systems.

• Electric vehicles.

• Industrial battery packs.

• Traction battery systems.

• Portable energy storage.

• Custom battery pack assembly.