Shijing P617 Electric Piston for Pump Suction Cups

Shijing P617 electric piston (pump)
The P617 electric piston for suction cups is an interesting solution that will work with practically every pump cup I know. It is more convenient on cups that have a gauge. To my mind, this is for materials where an ordinary cup slowly bleeds down and you need a guaranteed hold over a long move. It runs off a single Li-Ion 3.7V cell, which can be charged over a USB cable.
Continuous run time: ~ 2 h 30 min.
Full charge time: ~ 2 h

In the box:

Electric piston
Li-Ion 3.7V cell, size 18560
Charging cable

Specifications:
Manufacturer: Shijing (China)