Ethernet cable testers are dime a dozen, but none of them are as elegant and multimeter-friendly as this tester from our Hackaday.io regular, [Bharbour]. An Ethernet cable has 8 wires, and the 9 ...

Unlike your standard multimeter, the Ancel BA101 can put a controlled load on the battery to assess its ability to maintain voltage under stress without dropping off. A cranking test helps ...