been running an Optima for a year and a half with no problems.....oh, and i have a warn 9.5 winch that when trail riding or camping seems to get used daily. i do have lights and amps and everything else you can put on these things but really do you run them all at once? i doubt you'll be winching with all your lights on, stereo booming(future if you get an amp, you know what i mean. be glad you got one and don't worry about negative people.