Turn Cordless Tool Batteries Into USB Chargers | Hackaday
Hacks for Checking and Replacing Your Car's Battery Cable and Terminal Ends - Tech Team Products
New HackRF One + Portapack H2 + 5 Antennas + Data Cable SDR Software Defined Radio 0.5 ppm TCXO 1MHz 6GHz Unassembled Battery|Smart Remote Control| - AliExpress
Help with Camera Battery Hack - Discussions - diydrones
Charging hack...on vacation and forgot charger...$2 dollar sacrificial USB cord, $16 multimeter to confirm voltage and ?$ AWAY battery charger. Streak saved! : r/whoop