Product Description
Ultimate Power Bank Battery Case for Smartphones and Tablets
The battery box is used to hold each set of 4 No. 1 dry batteries. The battery box consists of a box body, springs, connectors, etc. The box body is made of ABS engineering plastic, with dimensions of 92mm × 40mm × 38mm. The spring is a conical spiral spring made of carbon spring steel wire with a diameter of 0.8mm; There is a serial socket, which cannot be connected when the battery is installed upside down. There are external terminals on the box body, which can easily connect the battery power supply to the outside.
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