Amprobe SOLAR-500 Solar-Analyzer - Manual (Page 27)

21
When regular batteries are used and LCD displays the Power is ≦2%, please
replace the batteries:
1. Turn off the Solar Model Analyzer.
2. Remove the screw of the battery cover.
3. Lift and remove the battery cover.
4. Remove the old batteries and insert eight new 1.5V SUM-3 batteries.
5. Install the battery cover and secure the screw.