Adafruit Waterproof 3xAA Battery Holder with On/Off Switch

Key Features Waterproof Rubber gasket around the edge of the case Hold 3 AA batteries Attaches together with 4 machine screws Potted power switch and a rubber-boot on-off switch Keep your power source safe and toasty in these waterproof 3xAA battery holders. They're just like classic switched battery holders, but designed for survival! The case has a rubber gasket around the edge of the case (its black and hard to see in the photos but it is there) and attaches together with 4 machine screws. What we like about this design is that the hexnuts are captive in one side and you can assemble/disassemble as many times as you need. There's a potted power switch and a rubber-boot on-off switch (press to turn on/off). Use with any alkaline or rechargeable batteries for about 4.5V output.Item SpecificsWeight: 36 gramsDimensions: 2" (2.5" with machine screw ears) x 3" x.8" (50mm (63mm with machine screw ears) x 77mm x 20mm)Cable Length: 6" (150mm) long power cableThe power cable wires are not polarity marked, use any multimeter to verify the polarity during use.