Derailed

The battery charging works well, but to get the battery's charging indicator lights to come on I need to be going about 11 MPH (700x35 tires). For my first test I just spun the wheel by hand and couldn't get the charging lights to come on at all -- I worried something was wrong until I went for a ride and they came on solidly by 11 MPH. The battery specifies an input current of 1 A, so I suspect the E-Werk can't deliver the amp until the wheel is going 11 MPH. I wonder, however, if it will take some charge even at lower speeds, just more slowly and without the indicator llghts.

Although I don't have an iPhone, I do have an iPod Touch, and I can easily get that to go into charging mode just by spinning the wheel with my hand. However, I think it only needs 500 mA (0.5 A) to recognize a charge.

I don't know if there's a risk of damaging an electronic device by charging it the correct voltage but too low and inconsistent current. I'd like to think it would just slow the charging time, but I don't know that for sure. I will soon have an iPad, and I don't yet know if I'll be willing to risk charging it directly (presumably more efficiently) or if I'll always want to charge it with my cache battery.