I am doing an arduino project that requires wireless charging. I am trying to get all the parts on Amazon because I have giftcards to burn so I had to go with a more complicated but I feel safer than a hack solution.
I have an Arduino Fio that has a built in LiPo USB Charging circuit.
My plan is to use a Galaxy S3 Wireless charging base transmitting to a Galaxy S3 Wireless receiver which I will solder a USB dongle onto and plug into the Arduino Fio (The USB port on the Arduino fio is ONLY for battery charging so this should work)
To keep things consistent I am going to buy a Galaxy S3 3.7v 2100mAh battery to power this device.
So my question is the battery appears to have 4 contacts on it. From research I am assuming that 2 of the contacts are for reading the battery temp and other stats. If I am using the Arduino Fio's lipo charging circuit do I need to connect these other 2 terminals on the battery or can I just use the + and -
To keep it consistant I plan on using this wireless charger http://www.amazon.com/gp/product/B00B7LPA42/ref=ox_sc_act_title_7?ie=UTF8&psc=1&smid=A2L77EE7U53NWQ