If it can charging two radios together;
The charger has two port ,and one for the RT22 RB19 RT22S two way radio ,and another for the battery, and you can recharging one of the radio and one of the battery, it is same to charging two radios.

If i can leave the radio on the charger when it finish the charging;
Yes, it is intelligent, and when finish the charging, it will take off the power.But there are the suggestion that please don’t leave it on the charger all the time, it will Shorten the battery life.

What is the advantage of this charging base;
The charging base is the USB charging port, so if you have the USB wire,and you can charge on the wall, computer,car,mobile power.

Package includes:
1 x Retevis RT22 RB19 RT22S Walkie Talkie Charging Base

Features & details

Features

• The charging base for Retevis RT22 RB19 RT22S walkie talkies can charge the radio and battery together; the USB wire and adapter are not included in the package
• You can tell if the battery is fully charged by the indicator light
• It can charge fast and you can charge two of them together to save your time
• USB port and lightweight allow it easy to carry for the outside work
• Fast and easy to use; extremely save your time

Product information