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Over-charging has become a problem that most people often ignore.It is
unenvironment and will do damage the battery.So we made this Quantitative and Timing Plug.Two knobs are added on the middle of the plug.Switch them and set charging time and
voltage .Voltage can be adjusted from 5V to 380V and charging duration can be set from 5min to no limit .
Shaanxi university of science and technology
Xi’an, China
Shaanxi university of science and technology
Xi’an, China
Shaobo Geng Xujia Luo Siyu Chen Danqiong Lu