UPS for router 12V
Description
The project itself is a reserve power supply for a wi-fi router. It consists of a 21700 lithium battery, a PCB UPS from aliexpress (https://www.aliexpress.com/item/4000443819519.html?spm=a2g0o.order_list.order_list_main.753.21ef1802ojNaQ4) and a 3d printed housing. Everything connects together easily and works just fine.
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