I wanted a pass through type power adapter that provides more than 3.7 volts without being insane, so I made my own.
It's made from copper plumbing parts, phone plug socket, Radio shack - switch, diode, LED.
I have done other lighter mods, but I wanted this one to stay where I put it, so it has a little weight to it. I power it mostly from my Kensington battery pack, but right now it's on the PC USB and working fine.
It runs at 4.8 volts, I had intended to run it at 4.2, but the diode voltage drop was less than predicted.
The LED is yellow with 150ohm 1/8w resister in series to reduce the brightness, normal resister would be 100ohm, too bright.
It's made from copper plumbing parts, phone plug socket, Radio shack - switch, diode, LED.
I have done other lighter mods, but I wanted this one to stay where I put it, so it has a little weight to it. I power it mostly from my Kensington battery pack, but right now it's on the PC USB and working fine.
It runs at 4.8 volts, I had intended to run it at 4.2, but the diode voltage drop was less than predicted.
The LED is yellow with 150ohm 1/8w resister in series to reduce the brightness, normal resister would be 100ohm, too bright.