Top 5: 12-volt Multi Socket Adapters. 1. ... illuminated sockets, a battery level indicator, and a collar that ensures the power plug will fit no matter how wide or narrow the socket.

Like knowing how to change a car tire, being able to disconnect and remove the battery on your own can come in handy -- here's why you might need to.

Last October, Tesla removed the ability to keep the 12-volt sockets powered when the vehicle was locked. The move was meant to improve phantom drain but caused a massive backlash.

The class-action lawsuit, which was filed in the U.S. Eastern District Court of California, claims that Subaru and Toyota both knew about 12-volt battery problems before the the Bz4X or Solterra ...