Hi guys

It looks like you have not seen the Fromeco Kodiak switch, it is designed for the A123's and has a digital read out of how may apms have passed though it during your flight, it has a memory so that multiple flights are added together, simple to zero by a quick switch on and off and on again, Deans plug compatable and a charge socket on the front face, so you can re-charge without taking the battery out of the aircraft.

Oh yes the switch is a fail safe on and can handle a 30amp draw.

Hope this helps.
Mike