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Simple but effective - this sewable breakout board has a CR2032 coin cell battery holder soldered on, an on/off switch and 0.1" pitch breakout pins for easy connecting. Great for powering very low-current projects, or adding a battery backup circuit to a real-time-clock or similar. There's two ground pins, one 'switched' power pin, and one pin that is always on.
Comes with one fully assembled and tested breakout plus a small stick of 0.1" header so you can solder it on and plug into a breadboard. Coin cell battery is not included.
Dimensions:
- 29mm x 28mm x 1.6mm / 1.1" x 1.1" x 0.06"
- Mounting hole distance: 22mm x 22mm / 0.9" x 0.9"
- Weight: 3.5g
JOHN M HILL
Reviewed in the United States on March 1, 2024
This battery board and switch works correctly, but the switch is soldered in backwards, such that when you move the switch to the on position, it’s actually off, and vice versa. The picture on the product page shows the correct installation of the switch. On the boards I received, the switch is rotated 180 degrees. That also puts the switch closer to the edge of the board, which can make it difficult to actuate if it’s installed in an enclosure.
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