12v Universal USB Plug Power a USB Device w/ a 12v Battery

The Milwaukee 3 ft micro-USB cable and 2.1A wall charger feature nothing but heavy duty design to stand up to abusive jobsite environments. A premium braided cable with metal ends delivers extended life when compared to off-the shelf charging cords. A fast charging wall plug provides 2.1A device charging. Micro-USB cable and wall charger are compatible with Milwaukee REDLITHIUM USB products and M12 compact charger and power source.

Milwaukee 48-59-1202 3' Micro USB Cable and 2.1A Wall Charger

QC 3.0 Car Charger with USB-A to USB-C Cable

12v Powersheer™ XXL Battery and Charger

The CPUAC1U1300 Universal Power Adapter can be used as a replacement or spare DC power adapter for electronics such portable DVD players and other A/V products tablets and many other electronics devices. The CPUAC1U1300 has a folding wall plug 7 adapter tips and 1 USB charging port. The 5 ft. cord provides flexibility to where you operate your electronics.

CyberPower Cpuac1u1300 Universal Power Adapter

JUXING 12000W Car Power Inverter Universal DC12V/24V To 220V

Universal Plug Adapter w/ Dual USB Port (EU/US/UK/AU) - RobotShop

What is USB Power Delivery and how does USB PD work?

MarCum knows that long days on the ice sometimes require extra power to recharge a Bluetooth speaker, smartphone, or fishing electronics. The MarCum 12V USB Adapter is the solution to a host of power issues you might face while on the ice. As a simple dongle that connects to any existing 12V battery with spade terminals, anglers can now harness additional lithium power to charge any USB-compatible device.