Whoops I'm so used to using MOSFETs, I'm getting my terms mixed up. The transistor is acting as an electrical switch! When charger plugged in, a connection is made, allowing me to charge in parallel, but when no current is sent to the base, the parallel connection is broken and I will be able to turn on the mechanical switch without. The transistors are there to eliminate the use of any unnecessary mechanical switched. I will test on a breadboard (first with a multimeter) and let you know my results.