got rid of the lr44 batteries in my soeks 112 geiger counter by 3d printing a case for an elfbar rechargable battery. the device accepts more than 5V as an input, so no problems, except deep discharge here
#ipod classic #bluetooth mod update: i connected the module to the power-rail of the display now, whereby the buttons stay responsive, but the voltage doesn't drop until deep sleep state (afaik 30min after soft-poweroff)
my #ipod classic got a #bluetooth upgrade. i used a bt-xmitter, connected it to the headphone-output and buttons-power-pad, so the touchwheel is very inresponsive now, but it was the only pad that i've found, which is only powered, when the ipod is on