This thread has been interesting to follow. The OP kindly shared his (ingenious) battery modifications and received, in return,several comments that could easily have been construed as negative, most of them extolling the virtues of pre-planning and mocking the perceived issue of changing batteries.
What I have to add is that I've been forced to buy multiple chargers and multiple batteries because otherwise I'd spend forever charging four or five batteries sequentially everytime I head away from home on a vacation where I'm liable to shoot heavily all day. And that means taking at least three chargers with me. What a waste of time and space and effort. It's one of the things that has me reaching for my Canon DSLR more and more often again. By the time you add the multiple batteries and chargers and power strip ( otherwise I'd be hogging every outlet in the hotel room with chargers), the size and weight advantage from a packing and transport perspective is on the Canon's side.
