GEL122550AG-CGB battery12V255AH-gel battery for solar and wind power systems

**■FEATURES**

- Designed with flat plate, GEL electrolyte, and AGM separator technology.

- The GEL electrolyte inside the battery maintains uniformity, ensuring excellent cycle life.

- Possesses a large thermal capacity, preventing thermal runaway phenomena.

- Constructed with high-strength ABS material for the container and lid.

- Wide temperature range of application (-15~45℃) with the best operating temperature being (20±5℃).

- Leak-proof, safe, and reliable.

- Can be used in a standing or lying position, making it convenient for transportation and installation.

- Low self-discharge rate.

**■SPECIFICATIONS**

- Nominal Voltage: 12V

- C10 Nominal Capacity: 255Ah (at 25℃, 10.5V)

- C5 Capacity: 204Ah (at 25℃, 10.5V)

- Dimensions:

  - Length: 547mm

  - Width: 275mm

  - Height: 242mm

  - Total Height: 242mm

- Internal Resistance: Approximately 4.5 mΩ (at 25℃)

- Max Short-duration Discharge Current: 5100A (at 25℃)

- Weight: Approximately 78.00kg

- Terminal: RT-47

**■CHARGE**

- Charging Modes:

  - Standby Use:

    - Charging Voltage: 2.275±0.025V/cell (at 25℃)

    - Temperature Compensation: -3.3mV/℃/cell

    - Max Charging Current: 76.5A

  - Cyclic Use:

    - Charging Voltage: 2.45±0.05V/cell (at 25℃)

    - Temperature Compensation: -5mV/℃/cell

**■STORAGE**

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

- Avoid direct sunlight and proximity to heat sources (such as radiators, maintaining a distance of more than 1m).

- Avoid contact with any toxic gases and organic solvents.

- The longest storage life is 6 months when the ambient temperature is below 25℃. For higher temperatures, refer to the specified conditions in the chart below.

  - Storage Temperature (℃): ≤25, 26～33, 34～40

  - Storage Time (Month): 6, 3, 1

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

- Charging method: maximum charging current of 76.5A, constant voltage of 2.45±0.05V/cell (at 25℃); charging time: 15~20 hours; temperature compensation coefficient: -5mV/℃/cell.