How to Make a Magnet Recharger

Select a piece of steel pipe with an inside diameter larger than the magnet you need to pass through it. The steel pipe should be at least twice the length of the magnet.

Coil 8-gauge insulated electrical wire around the pipe so it resembles a spring. Keep at least 12-inches of wire hanging off each end of the coil. Eight-gauge wire is the same wire used to connect the charging system of a car to the 12-volt battery on a car. It can handle the amperage of the 12-volt battery.

Wrap a layer of electrical tape around the pipe to hold the wire in place.

Cut 1/2-inch of the insulation off each end of the wire with wire strippers. Slide the exposed end of the wires into the clamps of two 12-volt battery terminal connector and then tighten the clamps with a wrench.

Slide the clamp on one end of the wire onto to the positive terminal of a fully charged 12-volt battery. Attach the other end of the wire to the negative terminal on the 12-volt battery. The electrical current passes through the magnetic coil of wire and creates an electromagnet inside the metal pipe.

Pass the magnet through the metal pipe once to recharge it. Place the magnet next to your gauss meter and check the magnet̵7;s ̶0;gauss̶1; reading with the gauss meter. Gauss is the level of magnetic pull. The amount of gauss needed depends on the use for the magnet. You need to speak to the manufacturer of the magnet or equipment to determine the correct gauss requirements for your magnet. For example, Alnico V magnets used in electric guitar electronics require a magnet that measures 25 gauss. If the magnet still has a weak magnetic field after a single pass through the recharger, pass the magnet through a second time and then test again. Additional passes will increase the magnetic strength of the magnet.