VRLA GEL : design life 12 years
The GEL model range offers best deep cycle durability and overall longer life. The use of high purity materials and lead calcium grids ensure that for both AGM and GEL products have particularly low self-discharge so that they will not go flat during long periods without charge.
12V 220Ah Deep Cycle GEL Battery
Nominal voltage : 12 V
Nominal capacity @ 25 °C : 220Ah
Cycle life @ 80 % DoD and 25 °C : 500 cycles
https://www.victronenergy.com/upload/documents/Datasheet-GEL-and-AGM-Batteries-EN.pdf
