The jist of what I was saying is quality level.

Since most people don't want to pay $1.00 for a cell phone, manufactures aren't going to put in quality batteries.

They also realize that most people are going to lose, drop in the toilet, or buy a new cell phone in a couple years. Putting in a battery pack that will last 5 years isn't worth it.

On the other hand, most people want their TCH to last 10 years. And Toyota warranties most of them for 10 years. They are going to go the extra mile to put in a higher quality battery.