Captive Electrolyte (Gel) Batteries
 

Captive electrolyte batteries use a non – liquid electrolyte to eliminate the problems of water loss through gassing. Sealed at the factory, they do not leak or spill, so they are good for solar lanterns or other uses where the battery is more around a lot. They can withstand deep discharges and have a good cycle life. They also have a low self discharge rate.
 

Deta Sealed Battery- 65 AH Captive Electrolyte