Many belated thanks for this. I have all of the bits and am about to start construction, but have 2 questions before I do, both concerning the battery mod. I understand the principal, as I made a similar mod for my Olympus E400 a few years ago, but used a adapter that was designed to take AA cells, therefore no need to break into the battery to remove things. Question 1- just how do you open the battery? With a modelling knife, a Dremel or what. The case appears to be well glued together so there is no easy way in. Question 2- my camera is a Canon 60D and the battery has 2 large and 2 small contacts, which provide power and status data I assume. Do all 4 have to be live or can it just be the power contacts. As shown in the attached photo, the small contacts are marked + and -, and the larger ones are marked T and C. I am assuming that once inside there is a circuit board. Would the incoming leads from the PSU connect at the point where the terminals on the cells are now, or do I bypass the pcb and go direct to the power outputs only?
I would be very grateful for any guidance that you can offer, thanks
Chris