personally i think all the Gel ones (Oddy and Dekka's) ain't worth poop
i have broken so many of them (i do tend to land hard and this is when i notice they go dead {dreaded click-click after landing when trying to start the ski})
so i'll be looking at the Jetwerks again for this upcoming summer, or just go back to the ole standard acid battery
i know many people running them with no problems, and cheaper then the dam GEL bat's
forget about trying to deal with the warranty on them
i averaged killing them about every other week, which equated to two outtings, and i did everything i could to help protect them
then of course they had to sit in the garage which would get over 120 degree's so that probably didn't help either
although on her ski (SXR) we only lost one Gel battery so far