The Chargers & Xtender

What kind of batteries are necessary to operate the MeatStick charger?What does The MeatStick charger / X charger's LED indicate?What does The MeatStick (2020) charger's LED indicates?Can I use rechargeable batteries?How does the Xtender (X chargers) work?How does the Xtender (BR200) work?How close do the Xtender / The X Chargers need to be to the Stick?