Ive got mine on my Land rover defender and winch, its the best battery i have brought....

Mine is showing signs of deterioration after 5 years; granted that's much better than many other batteries deliver but 12 years? Perhaps a little bit of a stretch?

I bought two odyssey extreme batteries for my polaris rzr 800s. One for the main and one for accessories. My main one is 2 years old and failed. The second one seems fine. The first one is just draining on it's own from 100% charge to 50% in one week not hooked up to anything.

Okay, I bought into all of the reviews that I read about these Odyssey Batteries. I bought a PC680 for my R1150GS Motorcycle, 2-Years ago. Last July, after 1-Year, battery failed. This morning, 13-Months later, while leaving for work at 5:00am, I turn on my key and the Instrument Panel will barely light up. Very dim. Hit the starter, nothing. So, I'm pulling the seat, pulling the tank, taking off the battery (which still looks brand new), and I will have to take a long lunch from work today, so I can go through the hassle of getting this battery pro-rated. So, here's my delima, roll the dice with this "Extreme" Odyssey (and hope I can get a good one this time, because it is under Warranty), or go with another brand? #VERYDISAPOINTEDSOFAR

If your batteries are so good why do you only offer a 2 year guarantee other batteries that cost less offer 4 year guarantee I've been doing research on different batteries the cheaper batteries seem to last longer cost less Halfords battery has good reviews and last for 4 years and only cost £100