Question: When I place FS II beltpacks in an AC60 charger some power up on their own when I remove them from the charger after they are completely charged. Is this normal?
Answer: If a beltpack is powered ON when placed in the charger, on removal the RF component is re-enabled and the beltpack attempts to reconnect to its previous connection.
If a beltpack is powered OFF when placed in the charger, on removal it will stay powered off.
The beltpack remembers the state it was in when it is placed in the charger. Most likely the beltpacks that you placed in the charger we were on when placed in the charger to replenish the Li-on battery.