Pro: + Transparent - batteries of different brands, etc. are so easily recognizable + Good workmanship + Good, reliable and easy-to-closing opening snap + More boxes can be hooked into each other and next to each bayed for an arbitrarily long box + 4'er format for AA cells allows good pairing equivalent cells for typical 4'er applications (eg system flash for DSLR) + 5'er format with a direction transverse to the other cell provides good space usage for AAA cells, the typical 4'er pairing for equally good, or equally bad cells remains easily recognizable
Conclusion: Especially in 5'er Pack rewarding because so shall also be shipping within. Can I fully recommend.
