Sorry about another satz PP question. We are having to put together a Basic Electricity Kit from scratch and budgets being what they are funds are limited. For the components we're going with this style (from SLS unless anyone has any horror stories). We are buying D battery holders for some stuff but also want a set of 15 power packs. We're going for the red 3A satz power station but I'm aprehensive as there is some criticism of them. My question is, is there a reasonably priced alternative? The satz ones can be had for £38.50. Thank you.