Good: batteries

Bad:   badderies.

I keep wanting to spell this with Ds, because I slaughter the pronunciation. The measurement of power in a battery is a volt. The T in volt might remember me to spell the word with T.

Here is another idea. On a car battery, there are plus and minus symbols identify negative and positive. The letters of T can look more like a negative or positive symbol than the letter D.

Do you have a better idea? If you do, please share in the comment section of the blog.