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Gel Cell Batteries

iSustain Australia sells a range of Gel cell deep cycle batteries ranging from 40Ah up to 3500Ah. They are suitable for all deep cycle applications and solar power systems. We offer free delivery to most regional centres in Australia.

Sonnenschein gel batteries
Sungel gel batteries
Exide Gel Batteries



Exide Gel

Gel cell batteries are often referred to as sealed lead acid (SLA) batteries due to their non-leaking containers, but they are not completely sealed, the valve regulation system allows gas to be expelled. Unlike a traditional wet cell lead acid battery, these batteries do not need to be kept upright and are non-spillable, therefore can be operated in virtually any position. However installation upside down is not recommended.
As Gel cells are sealed and cannot be re-filled with electrolyte, controlling the rate of charge is very important, they are prone to damage if gassing is allowed to occur.
They must be charged at a slower rate (C/20) to prevent excess gas from damaging the cells. Gel cells use slightly lower charging voltages than flooded cells and thus the set-points for charging equipment have to be adjusted.
Most better inverters commonly used in solar electric systems can be set to limit charging current to the batteries. Gel cells can be used in virtually any flooded wet cell application (in conjunction with well-regulated charging) as well as applications where wet cells cannot be used.
Because of their unique features and benefits, gel cells are particularly well suited for:
• Deep Cycle Deep Discharge Applications (Portable Power, Electronics, Solar Applications)
• Standby and Emergency Backup Applications (UPS, Emergency Lighting)
• Unusual and Demanding Applications (Air-transported equipment, Marine Starting)


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Gel Cell Batteries
Remote Power Supplies - iSustain Australia