Hi,I accidentally inserted the 1044 positive side down into my P-10. It worked just fine but I've heard you can ruin your pv by doing so. Sometime the tube, not just the atomizer gets really hot and the brass button is VERY light to the touch, hence it might have fired up without me, and that's why the tube was so hot. One other thing, the high drain battery seems to wobbles around inside the tube. Beside those little problems I love it. Hopefully it's just something simple, would hate to send it to David and get it fixed. Any ideas? But most importantly how come the pv worked even when I put the battery in + first?