FWIW, it looks like each charger includes 2 AA and AAA batteries, but this part of the description
“Charger comes with four AA 1700 mAh & four AAA 750 mAh NiMH StayCharged Batteries”
seems to imply that you get 4 AA and AAA batteries with each charger.
It’s a 2-pack so you get twice as much as a single. i.e. 2 chargers 4 AA and 4 AAA. Hope that helps clarify!