Two quick notes: As we knew, MyCharge does not have a speech chip in their latest models of batteries. They are smaller with more capacity and of course they now have the iPhone 5 Lightening connector on some models. They have many shapes, sizes and colors. Mophi, makers of the Juice Pack, have a very novel concept. Their latest 1700MA Juice Pack, has built in memory, either 16 GB or 32 GB. So, if you happened to get an iPhone with 16GB of memory and you are running out of space, you can have extra battery and memory in one think unit. It is only a third of an inch longer than the previous model. There is an app you run to manage memory on what looks like an external drive. Everything talks nicely. It is quite easy to use. The data just acts like it is on your phone. There are scores of other battery companies but these are two I checked out. Mike Michael May, CEO Sendero Group, Davis California Developers of accessible GPS Sendero Phone: 888-757-6810, extension 101 Home Office: 530-757-6900 Email: MikeMay@xxxxxxxxxxxxxxxx Sendero web: http://www.senderogroup.com General GPS web: http://www.AccessibleGPS.com Mike May Personal: http://www.CrashingThrough.com To change your email settings (unsubscribe, digest only, or vacation mode): http://senderogroup.com/social_media/email.htm Additionally, to unsubscribe send an email to gps-talkusers-request@xxxxxxxxxxxxx with "unsubscribe" in the Subject.