Originally Posted by Tourist in MSN

I was rushed when I wrote post number 4 above. A bit more detail here.

The Eneloop device, I said it had separate charging circuits, I am not really sure about that but it can charge either one or two AA batteries at a time.

The Pixo C-USB is rated to charge one or two AA batteries or two AAA batteries at a time. It is NOT rated to charge a single AAA battery, that would probably charge the small battery too fast. This device has a switch for higher or lower rates of current flow out of the USB port, I leave it on the 2.0 setting which is the slower charge rate, about a half amp through the USB port.

I bought a volt/amp meter on Ebay, shipped from China. It plugs into a USB port and then you plug your USB cable into it. It is great to know how much current you are putting into your device, or if your batteries are up to full charge then you see current tapper off to nil. (I am an engineer, we like to see things like numbers.) Hard to read in sunlight, the clear ones are better than the blue ones.

usb current voltage tester charger doctor | eBay