Page 4
Power Conditioner
02 March 2017
Testing
Turn R1 (pot) fully anticlockwise.
Plug the load (J2) into a USB power pack socket. The LED should light.
Plug your intended target device (e.g. WSPRlite) into the USB socket (J1).
If the USB power pack powers down after a few minutes (LED on Electronic load goes off), turn R1
slightly clockwise to increase the current being drawn. Note that some USB power packs take a few
minutes to power down.
Repeat the previous step until the battery pack remains on reliably with the electronic load
and
your
target device connected. This will ensure that you have the minimum additional current for best
battery life.
Encapsulation
Before putting on the heat-shrink sleeving, ensure that you remove any sharp wire ends on the
underside of the board. Clip with wire cutters.
Cut the sleeving to 5cm length and slide over the board from the J2 end. Push up and over J1 until
the J2 end of the sleeving sits about 3mm beyond the board edge (over J2). Heat evenly on both
sides with a hot air gun or hair dryer.
If you want to adjust the load again, using a sharp knife, cut a small window in the heatshrink over
the pot.
