After a number of days looking around for a charging setup that can accommodate at least two devices that require a 2 Amp draw on the USB port we settled on the following:
The reason we ordered these units was that the basic USB chargers we have in our vehicles only support 500mAh draws. That is one quarter the capability of these units.
So, when using a Windows Phone like my HD7 or Monique's Lumia 710 while plugged in they were still losing charge if frequent calls were being made or we were streaming 8Tracks or listening to Zune content.
The HTC HD7 charger's USB port has a little over 1A at the port. The Nokia charger has 1.2A at the port.
So, we figure that 2.1A should be more than enough to provide a charge and run the phones at 110% _all of the time_ and not be stranded with a dead phone at our destination.
Next up will be to pick up their ISUBH4 wall wart (dual 2.1A USB port A/C charger).
We may also pick up a couple of the goBAT II - Portable Charger & Backup Battery units for those days when out and about to provide a backup power source while at a client site. They would be handy for long plane trips too.
Have any pointers to power accessories used to keep things charged up? Please do point them out to us!
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book