Originally Posted by
Wiggle
Now for wiring you've got a ton of options, you're dealing with high currents (in bike terms) here (as high as 6 amps with both lights on high and fully charged batteries)
If those torches aren't direct drive and use a circuit board to drive the LEDs then the current to the LED should hopefully be constant.
If that is the case then the current being taken from the batteries is likely to be at it's lowest when the batteries are fully charged.
As the supply voltage (battery) drops the puck will take more current to maintain a fairly constant power in (W).
The current is likely to be at it's lowest with fully charged batteries and at it's highest just before the batteries are completely drained.