I'm OK on the idea of charger for vehicle and home/office. But about 3-4 years ago, the cellphone and electronics industry all agreed to standardize on USB chargers specifically the micro-USB adapter. It took a little while longer but the manufacturers finally got around to doing so. Unfortunately there are still some electronics that use the mini-USB and some unfortuate souls using the full size USB.

Once everybody gets on board and properly standardized, the number of chargers required should go dramatically lower. Car manufacturers are getting the hint as well as they are supplying USB ports for accessories in addition to the lighter plug outlet in their newer vehicles. These ports are used for both data transfer and power.

As it is, in the car I use a mini-USB to lighter plug for my GPS. I use a micro-USB for the both work and personal cell phones and my bluetooth earpeice. I carry a 75-watt inverter in the vehicle to use with my AAx4 battery charger. I haven't tried running my laptop off the inverter yet but theroretically it shouldn't be a problem since the wall charger only outputs 65-watts. I suspect the inverter will handle it but the wiring might get a bit warm if used for an extended period.

Otherwise I use 1 micro-USB charger for home and another for the office. The problem comes with the circuity for the chargers. A USB charger is supposed to conform to the standards for power usage, but my Samsung Galaxy wants to see a trickle charge for the last 4% of charging so any other conforming charger will not completely charge the phone. On the other hand my BlackBerry charger can deliver 0.7amps when the USB spec says 0.5amps max. SO MUCH for standardization!

Can you say too much electronics???