I'm really happy I bought this meter. It's got so much more weight to it than my Simpsons. I've spent some time today cleaning it. The BR121 15V battery was dead measuring under 6V no load. I didn't want to spend close to what I paid for the meter for a new battery, so I bought 5x CR2032 3v batteries for $5 and made a small battery pack for the meter. Works perfectly. I didn't want to modify the meter so I just soldered it onto the battery tabs, easily reversible!