How do you make a battery out of quarters?

you need ten quarters

metal kitchen foil

blotting paper

two pieces of copper wire

cider vinegar

salt

bowl

LED- light emitting diode

&masking tape

1.Mix vinegar and a little salt together in the bowl. Vinegar is acetic acid and all acid can be used as an electrolyte.common salt is sodium chloride,a combination of a positive and negative ion (Na+ and Cl-). These will separate in the electrolyte, increasing it's strength.

2. Soak your circles of blotting paper in the ion-rich electrolyte.

3. With the masking tape, attach the end of one wire to the underneath of a foil disk. This is the negative terminal.Now stack in this sequence-foil,paper,coin,foil,paper,coin.

Each combination is it's own tiny battery-but light an LED you'll need quite a few of these cell's

4. When you have a stack,you can attach a wire to the last coin with tape. This will be the positive terminal.