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When we usually use the battery , somebody don’t know how much to use, and some idle batteries do not know whether useful. The battery in the batterypower display outside with a circle power test paper, can clearly see the remaining battery. This can reduce the power consumption and some of the batteries we thought we had lost without electricity., to improve battery efficiency, avoid unnecessary waste.


Jangxi University of Finance and Economics

Jangxi University of Finance and Economics
NanChang, China

Tian Wu,
Jangxi University of Finance and Economics