The battery case consists of box, spring and connectors, which is used for holding NO.1 battery.
The box is connected with the external connection post, which is convenient to connect the battery power and the external, the size: 92*40*38mm.
It has jacks for series connecting and it can not work when the battery is put in error.
It consists of box , spring and connectors used for holding NO.1 battery, which is made of ABS.
The size: 80*36*30mm,it can be series connected, as well as paralleling.
The battery box tester consists of 4 battery boxes and a plastic floor. Voltage output for 1.5V, 3V, 4.5V, 6V can be demonstrated.
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