We really dig the portable / wearable elvie pumps (http://elvie.com/) for daily use. like other battery powered pumps, they need to be charged daily, sometimes multiple times! we like to keep them topped up all the time so that we don’t have to worry about the battery conking out mid-pump. however, the micro USB charging port is really annoying, especially at 4 am! so we upgraded our set with these magnetic tip USB cables (https://www.adafruit.com/product/5520). the micro USB tips (https://www.adafruit.com/product/5523) go in each elvie, and then we can simply snap the cable in place without fiddling with the rubber gasket or cable orientation – video.
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