Some Real World testing!
To expedite development I acquired a 3.7V Lithium ION battery based USB charging system.
It has the following characteristics;
- Input power: 5V @ 500mA max
- Output power: 5V @ 800mA max
This is fed with the power from the bq51013AEVM-765 receiver.
This pictured rig enables the the battery pack to be charged via the receiver, the step up DC-DC converter and thus the target device to be powered by the battery
This has been tested successfully with several domestic items such as my old V6 LEGO Hot Rod.
The Hot Rod is an older LEGO kit that runs from 6 x 1.5 AA batteries (9V).
It has been tested with the following configurations;
- Hot Rod connected to Step-Up Converter directly to Reciever
- Hot Rod connected to Step-Up Converter powered by Li-Ion Charge Pack
A picture of the directly attached Step-Up Converter.
A reasons why I chose this toy is because lots of toys use AA or AAA batteries (cells). These batteries are forgotten about and left to leak leaving a big horrible mess to clean up with many cases resulting in the disposal of the toy.
The QI charging system removes this problem.
Imagine the mess created from leaking batteries in this LEGO control brick or having to throw it away!