(When I was on the 510 I bought multiple chargers, two for home, one for the car, and 2 for work.
Now that I have switched to Prodigy V2's and cartos I have 2 chargers at home, one at work, and one spare in the car. Since the sets of
batteries last all day [usually 1.5 days] this is not as much of an issue now. I'm just sayin'...)