Lately I’ve seen multiple videos, gifs, and the like, of people charging their iPhones using a lemon and a USB charging cable. The truth is, however, that you can actually charge your iPhone using a lemon, but you’ll need an array of items to successfully complete the task.
Fair warning: this could seriously damage you phone, so proceed with caution. (If you want to give it a try, I’d use an old phone that you won’t need in the future.)
Here’s what you’ll need:
2 Lemons (or any acidic or citrus fruit—a lemon, apple, or even a pear will work)
3 Copper Nails (or something made out of copper, like a coin)
2 Galvanized Nails (or something made out of zinc)
A Multimeter (to measure currents and voltage)
Steel Nails (or something made of another metal, like an ungalvanized nail)
USB Charging Cable (that you’re willing to cut…)
To simply make one battery cell, you’ll need to push the galvanized nail into the lemon. Next, push the copper nail into the lemon close to the galvanized nail, but make sure they are not touching. Using the multimeter, measure the voltage between the galvanized nail and the copper nail, then measure the current it will produce.
To actually charge your iPhone (warning: this may damage your phone), you must string at least 12 of the battery cells together and use multiple nails in each fruit. You then need to cut your USB cable open, and determine which wires should carry current by plugging the male end into a computer and measuring the voltages. Next, you must connect the battery to the cut open USB cable, in which you’ve revealed the wires that carry the power. Plug your iPhone in and you should have a charge!.
OR JUST VIEW THE VIDEO BELOW FOR EASIER STEP