The High-capacity lithium battery needs about 4 hours to be full charged.
When it's charging,the display will show a little power. when it's full charged, the display will show full power.
Microscope moveable stage is made of high quality plastic and metal, long serving life.
It is a microscope accessories, great replacement for the broken one.
We find this sophisticated and sturdy binocular compound microscope is very conducive to students' education in high school and university.