hehehe The What-A-nut is just a inside joke that I have at my LHS and Formuladrc forum. Anything that's ultimate is referred to WhatANut!
. Castle also reffered to their stuff related to the sized of "nuts"
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The connectors are just pin headers that BrianG uses, but mine are just indivually cut as I use anything from 2s to 6s. This way I don't need to make a bunch of balancing harnesses. And now I can charge my two 4s packs as 8s with serial adapters. Lots of time saving compared when I use to charge them in parallel at 10A.
The FMA pinouts are the same as a blinky, which I also use at times.
here's the FMA link for the Pin Lead connection diagrams
http://www.fmadirect.com/support_docs/item_1254.pdf