CB640-CGB battery 6V4AH - Suitable for precision instruments

■ FEATURES

- AGM valve regulated sealing technology ensures safety and reliability.

- High-strength ABS material for container and lid.

- Wide temperature range of application (-15~45℃), with optimal operating temperature at 20±5℃.

- Leak-proof design for safety and reliability.

- Can be used standing or lying down, facilitating transportation and installation.

- High sealed reaction efficiency, with minimal water loss and no need to add distilled water or electrolyte, making it easy to use and maintain.

- Low self-discharge rate ensures long-term storage performance.

■ SPECIFICATIONS

- Nominal Voltage: 6V

- Capacity:

  - C20: 4Ah (25℃, 5.25V)

  - Nominal Capacity (C20): 4Ah (25℃, 5.25V)

  - C10: 3.6Ah (25℃, 5.25V)

- Dimension:

  - Length: 70mm

  - Width: 47mm

  - Height: 101mm

  - Total Height: 106mm

- Weight: Approximately 0.80kg

- Internal Resistance: Approximately 20 mΩ (25℃)

- Max Short-duration Discharge Current: 120A (25℃)

- Terminal Type: FO-02 / FO-03

■ CHARGE

- Using Mode:

  - Standby Use: Charging Voltage 2.275±0.025V/cell (25℃), Temperature Compensation -3.3mV/℃/cell, Max Charging Current 1.2A

  - Cyclic Use: Charging Voltage 2.45±0.05V/cell (25℃), Temperature Compensation -5mV/℃/cell

■ STORAGE

- Batteries should be stored in a dry and clean warehouse with good air exchange.

- Avoid direct sunlight and proximity to heat sources such as radiators.

- Ensure a distance of more than 1m from heat sources.

- Avoid exposure to any toxic gas and organic solvent.

- The longest storage life is 6 months when the ambient temperature is below 25℃.

- If the ambient temperature is higher, refer to the specified chart for variations in storage life.

- Batteries should be recharged within the storage life or before use.

  - Charging methods: Maximum Charging Current 1.2A, Constant Voltage 2.45±0.05V/cell (25℃)

  - Charging Time: 15~20 hours

  - Temperature Compensation Coefficient: -5mV/℃/cell