R1-R4 battery drain?
looking at the v3 minty boost schematic and R1-R4 (which I assume are sense resistors used by some devices to detect a charger), in the build instructions you advise leaving the batteries in when not used but it appears to me that the sense resistors have a constant current drain of almost 1mA which gives a 5mW constant drain on the batteries. carrying this a bit further to 2x3400mAh AA cells (being generous here with the largest capacity I could find) (3400mAh*3V=10200mWh) says that every ((10200/5)/24) or 85 days the resistors alone will drain the best batteries one can find. should the R1-R4 be optional? what is the effect of leaving them out?