It is not hard to do at all. I did one recently and it was a piece of cake. Works really well too. The track I race at doesn't have power, so I bought a deep cycle boat battery at walmart for race day charging. That works well too. But the PC power supply is what I use at home next to my beautiful Bulldog 45A powersupply. I'll never get rid of that one. I'll probably have it buried with me.