For me the device, which I have not tried the charge in the car works. But it is very good that there is such a function, so you can recharge in the car when no Stecdose be reached. The loading of the outlet works. I only found a bit tedious threading of the NP-FH50. The battery has hooked a couple of times until I could insert it correctly. That's not an issue with the supplied charger to the camera. There is a point deduction, but when the battery is then in it, the device loads as it should. Four Points so.