xtar wp2 battery charger settings question

[jersey girl]

Just received my xtar wp2 charger. It has 3 settings 1A - 0.5A - o
before I use it I want to make sure I understand these

0 is for usb charging

What are the other two for?

Which one is for charging my 14650 batteries with wall plug?
and which setting is for when you use the car adaptor?

 

[bruiser]

.5A is charging at one half amp rate. 1A is charging at 1 amp rate. 1A, theoretically, would charge a battery twice as fast as the .5A. You should be able to use either setting the car.