Dear Forum,
the Suntactics solar charger has a cool feature: Auto-Retry port
"...The Auto-Retry port is one of the reasons the sCharger-12 works so well. The Auto-Retry will activate within 5 minutes of first being placed in the sun. Once activated there are a few good things that start happening to further optimize charging. If a momentary shadow appears like a cloud or even a person walking in front of the panel, some USB devices will give up charging and show 7 a warning message. They will often not restart when the sun is again available. Charging from the Auto-Retry port takes care of interruptions by doing a charger reset automatically. As long as the sCharger-12 sees sun, the USB device will continue to charge. Any messages that may have been displayed on the device will eventually disappear when the Auto-Retry kicks in. Also, if the sun becomes brighter because cloud haze disappears, the Auto-Retry will cause some more sophisticated USB devices to kick into a bulk charging state. Some devices may make a signal sound when in auto mode, this is normal and is a nice indicator that your phone is still charging and not to forget about it...."
Any idea how it does that? what is inside that USB?
thanks,
antennaboy