In a power outage, a 9 volt battery can give your phone enough juice to make a call or send a few texts. You may have seen this hack before , but it ...

A full battery can provide an additional four hours of talk time on your phone, which is more than enough time to survive a family dinner. Watch: Will There be Another Game Company Like Blizzard?

Plan V could get you out of such a fix, as it's a small and light keyring-based device that can be used to charge your smartphone from a 9-volt battery.

It's possible to revive a dead cell phone by using a 9-volt battery, along with something metal like a key, and your phone's car charger. Our own Lynna Lai tested it out.

One of the latest videos circulating on Facebook with over half a million shares, claims if you lose power during Hurricane Irma, you can charge your phone with a nine-volt battery.

A USB car charger, which will serve as the core of your DIY battery pack. Pretty much any model will work for this project — mine came from a gas station for a couple of bucks. A 9-volt battery ...

Walmart is selling a 12V car battery smart charger and maintainer on sale for just $22, and shoppers are “totally amazed” by it.

A car phone charger A 9-volt battery An appropriate USB cable and any adapters necessary A piece of conductive metal like a key or a paperclip A twist tie Plug the cable into the charger, and ...

We have talked a lot about the GSLO Volt solar charging battery case for the iPhone 4 over the last few months. Earlier this month I mentioned that the company had filed a patent application to ...