The battery compartment is written as in another feedback very poorly finished. The batteries terminals in the tray. When loading resulted in a short circuit and a battery was extremely hot !! Good thing I've read the other reviews. So I was prepared for the error and could remove the batteries quickly. You have to disassemble the microscope and work out the battery compartment with a file and isolate the battery terminals again. However, this is easily doable with a little skill. Annoying is the flickering lights. The contacts inside the microscope are processed sloppy. With a bit of this theme is to fix. The microscope itself is great and delivers a crisp image!
