Brent626

So I recently bought a stubby 21700 and having battery issues. The batt symbol always shows unless a fully charged battery ,after slight use the batt symbol shows. My battery percentage is way off. There is no selection on escribe for 21700 ,only 18650 and poly are the only selectable ones. I have tried to analyze battery and never can because it always says usb disconnected when nothing is. It also doesn't show any stats as far as voltage ,current, live ohms and more on the display even while firing. I hope someone can help.