I remember having seen a topic on the forum with a 2-batts rig and wondererd if it's as simple as having two battery cups mounted in parallel to feed the distro ? My NP1s are slowly fading away and I'd take the opportunity to go from NP1s to the lighter Hi-Q batts in the process. I'd simply buy a new batt and single charger, put a battery cup in parallel with my NP1 cup in my bag and go from there.
Now, usually, things are not that simple; would that be a situation where it is indeed ''just that'' and I can pop the champagne ?