Portable phone charger using RC lipos?

[MTBikerTim]

Originally Posted by BrianG

Also, just about all USB chargers need the "programming" pin tied to ground to tell the phone to charge. The chargers specific to each phone has the appropriate resistor built into the molded plug. If you use a normal USB computer cable, the computer (via the driver) tells the phone to charge. Using a normal USB computer cable hooked to 5v won't put most devices into charging mode by itself. I hope all that made sense.


For that to work at all, you would have to plug it into the throttle channel. Either that, or just sound a buzzer (better option IMO).

My phone uses a standard micro usb plug to charge. Thinking about it now you mention it the easiest thing to do would be to copy the wiring in my car charger. So if that has extra pins grounded I will do the same.