Putting more diodes in parallel will not reduce the voltage drop. You will always have a 0.7 volt drop across them because diodes are a non-linear device. They will also probably not share the load equally. The one with the lowest voltage drop will carry most of the current. There are charging devices available that charge the battery and also provide some voltage and current limiting.
Has anyone installed a Ready Brake on a late model Ford Edge?
I have a 2011 Edge and am interested in how difficult the installation might be, particularly routing of the cable from the brake pedal to the front of the car.