NoCrap 3 Bought in August 2021. Used two times and then stored it for six months (indoors in constant temp/humidity closet). Took it out again have used it here and there for a week. Today its been on since 8AM and now at 3pm it is broken. The re-chargeable battery inside it 2200mh didnt hold a charge since first day of buying it. I lived with that. Other difficulties is cumbersome microsSD slot and there is no WIFI ability which would let you transfer files. The throat is narrow so that limits work to within 3inches from edge. an adjustable throat (horizontal) would be useful in positioning the microscope properly.