How to Charge a Cell Phone From a 6-Volt Battery

by William Kinsey
cell phone image by Alexey Klementiev from

Charging a cell phone with a 6-volt battery can be done, but it depends on the power requirement of the phone. Cell phones come with a wide range of power requirements. Some phones use 3.6 volts, 5.0 volts or more. A 6-volt battery is best suited for a cell phone requiring 5.0 volts. This minimizes the number of extra electronic components needed to connect the battery and the cell phone. Use the old cell phone charger for parts.

Step 1

Take the old cell phone charger and cut the wire about 12 inches from the cell phone connector end of the charger. Throw away the transformer end that plugs into a wall outlet. Strip 1/2 inch of insulation off the ends of the electrical wire.

Step 2

Locate the positive wire. The positive wire usually has a white stripe on it. The remaining wire is the negative wire.

Step 3

Connect the positive wire to the positive terminal of the 6-volt battery by wrapping the stripped end around the positive terminal of the battery. Connect the negative wire to the negative terminal of the battery the same way.

Plug the cell phone connector end of the wire into the cell phone. Check the cell phone battery status indicator to verify that the cell phone is charging.

Photo Credits

  • cell phone image by Alexey Klementiev from

About the Author

William Kinsey lives in Concord, N.C. He started writing articles in March 2009, which have appeared on and He currently holds a Bachelor of Science in electrical engineering from the University of North Carolina at Charlotte and a Master of Business Administration from the University of Phoenix. He also has several years experience as an outside plant engineer and planner with AT&T. He also currently owns and operates Sophisticated Curves, an online fashion mall that caters to the needs of plus size women.

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