(2) KERDEJAR 2 AAA 3V Battery Eliminator. - YouTube

KERDEJAR 2 AAA 3V Battery Eliminator Review More Info and Purchase: Buy Me A Coffee: Blog: I was getting fed up with having to change the batteries on my kitchen freezer monitor - it has a power hungry always-on radio connection to the two remote sensors - and needed a solution. This little device seems to be it. This is a very basic power adaptor and what it does is replace the batteries in your device with a USB powered fakes This one is designed to replace two AAA batteries with a 3V supply but other versions are available for single, three and four battery devices. In the bag, you receive the adapter with a USB-A plug on one end of the cable and a hard-wired AAA battery on the other. A separate dummy battery makes up the kit. Neither battery are actual batteries are shaped as they are to fit into the battery c