chanuka - Electric Menorah

Are electric menorahs good for lighting on Chanukah?

To remove some of the more obvious issues, let's assume that:

1. It runs on batteries


2. It's an incandescent bulb


3. There are separate physical switches for each bulb

Answer

Here's a fairly detailed writeup on the pros and cons of the issue. It seems that the objection is based on the fact that the battery doesn't store the "fuel" itself, but rather the combination of chemicals that will be used to create the "fuel" of electrons.