Well I added a 9v connector to my passthrough. Ill also be adding a Deans Ultra plug to the wires. These plugs can handle as much voltage and amperage as 12gauge wire, so I am completely comfortable with their performance. The idea of adding the plug is to have a male/female side. When the PT is plugged into a USB source and the battery is in it I wont have to worry about the Female end accidentally shorting on something. I do not mind using my particular passthrough as a direct connect because it has a built in cut off time. And I am using NiMH batteries which are 'more' stable; I have been using them for RC purposes for years and have not had a single accident yet. The battery holder has a 9v connector on it BTW.
There is a lot of talk about safety here lately and I feel it is important for anyone to know that you should not do this if you are not comfortable with soldering properly (I use a soldering station and approved flux) and if you do not know the capability of your passthrough device. As mentioned mine has a cut off time. The circuitry is inside the end with the switch on it; this is independent of the PCB on the battery end (tested and verified on {MY} passthrough).
The leads from the 9v plug are soldered to the Voltage Out side of the PCB. I am using 5, 1.2v NiMH (2400mah) for an effective voltage of 6v. Load voltage at full charge is 5.56v. 4 batteries has an effective voltage of 4.8 and a load voltage of 3.95v. Before I even read about exploding batteries I knew many of the risks of using lithium and I prefer to stay inside my comfort/safety zone. I will stick with NiMH and keep the batteries away from my face. I really don't mind the cord at all.
There is a lot of talk about safety here lately and I feel it is important for anyone to know that you should not do this if you are not comfortable with soldering properly (I use a soldering station and approved flux) and if you do not know the capability of your passthrough device. As mentioned mine has a cut off time. The circuitry is inside the end with the switch on it; this is independent of the PCB on the battery end (tested and verified on {MY} passthrough).
The leads from the 9v plug are soldered to the Voltage Out side of the PCB. I am using 5, 1.2v NiMH (2400mah) for an effective voltage of 6v. Load voltage at full charge is 5.56v. 4 batteries has an effective voltage of 4.8 and a load voltage of 3.95v. Before I even read about exploding batteries I knew many of the risks of using lithium and I prefer to stay inside my comfort/safety zone. I will stick with NiMH and keep the batteries away from my face. I really don't mind the cord at all.