A:Answer Thank you for your inquiry. Regarding lamp (model #MG021FD), there does to possibly be a small screw on the coin screw, underneath the slit. May have to use a small eyeglass repair type screw driver in order to open coin screw for battery replacement (2 button batteries CR2016). Hope this helps. Best regards, Ottlite Customer Service PH#800842-8848 (Hours: M-F, 9am-5pm ET).