Choosing power supply, how to get the voltage and current ratings?
I have a device (a Geneva XS portable Bluetooth speaker) which is supplied with a power adapter that specifies the output as DC 5.5V and 2A with a concentric barrel output plug. Before I bought it, many of the reviews I read of this speaker commented that it was a shame that the device did not use a USB port for charging. I certainly agree with the sentiment, as I already carry around a charger for my various "iDevices" and other things, and it would be nice to simply use the existing adapter and cables that I already carry to charge the Geneva when I travel. To that end, I resolved that I would see whether I could buy a cable with USB to concentric barrel plug to see if I could indeed only add an extra cable to my load, rather than have to carry an entirely new charger. Anyway, I have found such cables on ebay, but before I buy, I am wondering if my 5.1V 2.3A iPad charger will actually manage to pass any charge to the 5.5V 2.0A hungry Bluetooth speaker...or am I just wasting my time? Cheers, Harry.