Variable Voltage Lion Power Pack with Switch & Voltage Monitor/Warning Buzzer

Made this for my Fatsharks but could be used for other purposes. Didn't get on with having the battery hanging of the strap and wanted a unit that I could just plug straight into my lipo charger. Thought I'd add a voltage booster in there as well so the lion cells can be fully drained. Voltage warning is programmable to whatever cell voltage is needed.

The power pack and cable joiner both use stress relieved cable clamps to prevent cable/solder joint damage but recommend using hot glue on all