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.
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,
• Unusual and Demanding Applications (Air-transported
equipment, Marine Starting)