I was searching earlier for where to find the charger for the new ipv4... Well after a trip to the biggest big box of them all (not going to namedrop) and some research, I found both the wall outlet and car charger that works for it, each for less than $20.00. I was elated... I don't like having to carry my 4-battery charger around, and frankly even when its not inconvenient I forget it. So now with a car charger for my ipv I don't ever have to worry about being "dead". I'll post pictures below of the chargers, but both are PowerLine Multi-Use AC Adapters with 7 charging tips to choose from, one labeled "home" and the other "mobile". Both also have a USB port as well which is awesome for in the car so you can charge your phone as well. There is a little red light above the charging port that is lit when it is charging. My batteries went from completely dead to 3/4 full with 30 minutes hooked up to the car adapter.