I have seen an ad for 1200mAh batteries for a sealife DC1200 to use as a replacement for the Sealife batteries which are only 700mAh and almost never make it through two dives. Is there any reason not to use them? (Note that essentially all pictures on a dive are shot with the flash and I use pictures not only for "art's sake" but also for fish ID so on a couple of 50 minute dives we are talking say 100 photos. Standard sealife batteries are inadequate.