Got a Traxxas on order for my great nephew's B'day but will get it working, tested, etc.
My past hobby was in custom flashlights so I have several RC type chargers although I ordered a 2970 charger also.
I was thinking of a proper break in charger on the included NiMh pack with a special charger I have for that. Is this the proper adapter cord to fit the NiMh and LiPo as far as that goes? https://www.amazon.com/dp/B00BMQGEZQ...=38R6VTWXPA8VH
I've seen a couple different ones but see no difference between them!
That older style Traxxas high-current connector will fit the similar style Traxxas connector as well as the current ID connector.
The Super Derecho
The Super Derecho
The adapter you linked in your OP will work with both ID and the older non ID NiMH batteries however charging ID LiPo will be more difficult since ID LiPo batteries do not have a separate balance connector and Traxxas is not anymore offering the TRA2938 adapter that split out the balance connections of the ID connector.