lipo usb charger drains phone battery Answered
Hi guys, tried to make my own minty boost.
I used a 3.7v battery 14.8 w/h
lithium charge controller
switch and a blocking diode.
my phone when plugged has a smaller charge than when i started charging.
I have a diode from the charge controller going to the dc/dc boost and a diode from the incoming solar panel.