I bought one of these adaptator and am very pleased with it.
It is the gadget to have.
It avoid carrying a lot of wires when you use several types of batteries.
I recommend it without a doubt...This is a really nice neat solution compared to the cluster of wires with different connectors. However, there are a couple of things you should be aware of. 1. There is no servo connectors (which is often used for TX packs). You will still need to build a mini harness to charge these.
2. The T-connector socket is for connectors with smooth sides. If you use the HK T-connectors (with ridges for easy grip), these become an extremely tight fit. I had to open up the case and file out a larger slot to make the fitment easier.
Otherwise, it is an excellent product!Good charge lead if you have multiple battery connectors. Just use caution while using it to not short out another terminal on it. Maybe use some black tape to cover the other ports while using it.