Testing

Grab your multimeter, and let's identify the Ground and VCC pins for realz... we'll connect the charging receiver to them shortly.

Start by plugging-in your USB cable and test traces near the connector for +5 volts. It looks like T2 is indeed VCC with two ground pins on bottom.

If your multimeter reads -5 volts, flip your probes.

You can tape the charging receiver to the transmitter with painters tape or do like I did and use the weight of the transmitter to hold the receiver down.

Once that's secure, make sure that the receiver is getting proper voltage. 

Cut a short length of red and black hook-up wire; connect the VCC and Ground from the charging receiver to the Micro USB pins we identified above.

Cover all exposed traces with insulative tape, Kapton works a treat and stands-up to wicked heat!

Make sure that your wires won't interfere with any ports, standoffs, screws, buttons, or plugs.

Re-assemble your case and slap the power transmitter on top... green means go!

I would recommend closely monitoring your phone / battery case for the first few charge cycles... just to be safe.

Batteries will get warm when re-charged, but should never be so hot that they are difficult to handle.

Enjoy!

This guide was first published on Nov 04, 2015. It was last updated on Nov 04, 2015. This page (Testing) was last updated on Sep 29, 2019.