I run a Dewalt 14.4V. I bought it years ago,maybe 6? I looked at the new ones and they are half the size of my old one and half the weight on the Lithium models. Ive drop mine repeatedly onto concrete floors from 16 ft ladders and the battery flies off but I cant kill it!! Ive had bad luck with Hitachi and Ryobi. Milwaukee is top notch as well..