What is the advantage of having Volt Absorb in a double battle?

Question

If you use an electric type attack on a pokemon with volt absorb on your team you are healing it but not doing damage to the opponent

Answer 1

Volt absorb mainly serves as a defensive measure. It can work very well in single battles. Suppose I have a Gyrados. Anybody who uses one knows that it has a 4X weakness to electricity, so I could switch him out, and put in my pokemon with volt absorb, not only protecting gyrados, but powering my other pokemon as well. This also can work for flash fire.

Answer 2

Try using the move Discharge. This attacks all Pokemon but the one using it. This can heal the Pokemon with Volt Absorb and attack the opponent.