Gel batteries are frequently chosen in remote, automated power systems where a long, maintenance-free life is vital.
Unlike conventional lead-acid batteries, which can leak acid if damaged, gel batteries are classed as non-hazardous, and thus are considerably easier to transport - you can't take a conventional lead-acid battery in a plane for example! Gel batteries recover well from deep discharge, and can stand repeated charging cycles.
Haze Gel batteries offer a 1 year manufacturer warranty on their products.
If you are unsure about which battery you need for your application, have a good read of our article on the subject - 'How to choose batteries for off-grid systems'.