Battery is fine so far but they are too expensive. I’ve had several other cameras and these are twice as expensive as any of my other cameras.

The batteries were out of stock for at least 4-5 months. I expected to receive freshly manufactured batteries, I didn't. They were 2 years old. I was advised that the batteries do not lose any useful life when stored, so the batteries are fine I hope so. They have been recharged twice and seem to have very good battery life when using them.