GEL640AG-CGB battery 6V4AH-gel battery for solar and wind power systems.

■ FEATURES

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

- GEL electrolyte ensures uniformity within the battery, resulting in excellent cycle life.

- GEL electrolyte possesses a significant 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-free design, ensuring safety and reliability.

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

- Low self-discharge rate.

■ SPECIFICATIONS

| Parameter                          | Value                                                         |

|------------------------------------|---------------------------------------------------------------|

| Nominal Voltage                    | 6V                                                            |

| Capacity (C20)                     | 4Ah (5.25V, at 25℃)                                           |

| Nominal Capacity (C20)             | 4Ah (5.25V, at 25℃)                                           |

| Capacity (C10)                     | 3.6Ah (5.25V, at 25℃)                                         |

| Dimension                          |                                                               |

| Length                             | 70mm                                                          |

| Width                              | 47mm                                                          |

| Height                             | 101mm                                                         |

| Internal Resistance                | Approx. 20 mΩ (25℃)                                          |

| Total Height                       | 106mm                                                         |

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

| Weight                             | Approx. 0.80kg                                                |

| Terminal                           | FO-02 / FO-03                                                 |

■ CHARGE

| Using Mode                         | Charging Voltage              | Temperature Compensation          | Max Charging Current |

|------------------------------------|-------------------------------|----------------------------------|----------------------|

| Standby Use                        | 2.275±0.025V/cell (25℃)      | -3.3mV/℃/cell                    | 1.2A                 |

| Cyclic Use                         | 2.45±0.05V/cell (25℃)        | -5mV/℃/cell                      |                      |

■ STORAGE

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

- Avoid direct sunlight, heat sources (such as radiators, maintain a distance of more than 1m), toxic gases, and organic solvents.

- The longest storage life is 6 months when the ambient temperature is below 25℃. If the temperature is higher, refer to the specified 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 methods: maximum charging current 1.2A, constant voltage 2.45±0.05V/cell (25℃); Charging time: 15~20h; Temperature compensation coefficient: -5mV/℃/cell.