What’s a good handheld cordless vacuum?

I want to by a good handheld cordless vacuum cleaner. Any suggestions on which ones are good?

I bought a Black & Decker VPX2102 and it was a disaster so I will return it.

1. The off/on switch was almost impossible to operate, it took so much force.
2. It was expensive and, I learned too late, came without the expensive batteries and expensive charger it required. And I was unable to figure out just what I needed to buy until it actually arrived.
3. The worst part: it only ran about 4 minutes before the batteries were drained and had to be recharged.

I want to find a vacuum that runs for a decent length of time and that either includes batteries and charger or whose ads make it clear how to get them.