I wanted to tell a quick story about my Optima Red Top problem. (Not really!!!) Well it is actually embarrassing as hell but worth telling. I am on my second Red Top in my fj40 now after three years. I have a tune port 350 with electric fan and dual cool for the power steering and the trans. I also have a warn winch that I use almost every trip for some reason or another. I recently found my cruiser dead as a door nail and thought it was once again time for another Red Top. I was a bit frustrated cause I purchased a high output alt and assumed it was charging the battery well. I actually had the alt tested after replacing the battery last year and it tested perfectly. It is a single wire setup and has a wire running right to the battery covered by a thick rubber hose to protect it from rubbing on anything. I was about to go to the store and grab another battery and then the brain kicked in for the first time in years. I decided to yank, tug, and push on the wire connecting the alt to the battery. Here is the good part! The wire seemed to be a bit stripped of the covering. I pulled the rubber protection hose cover a bit and it slipped quite a bit. Too much..... I then found that the wire was actually two wires that were at one time one. The damn thing had melted and was not doing anything anymore. The rubber protection has been on there for at least three years. I now realized the best part of the story. I have been running the cruiser for years on only the battery and no connection to the alt. The damn Optima Red Top is down right amazing. I have been starting, running all of the fans, lights, computer, and winch just on the charge of the battery. I admit I tossed it on a charger here and there for a couple of hours because my kids would leave the key on. But all kidding aside, the Optima had enough juice to keep everything cranking. I know I am a fool for not finding this but that comes as no suprise to me. Case and point. I am glad I never wrote the company to tell them their battery was junk. I now think I need to contact them and tell them they are the best and their batteries are absolutlely awesome! Advice for all who don't run a Red Top or equivelent....... GO BUY YOURSELF AN OPTIMA RED TOP!!!!!