Just received them today to go with my 2 each Tenergy 3800mah NiMH Batteries. The cheap Exceed 1800mah NiMH will go in my 1/18 scale Himito Tyronno my grandson uses. I prefer the banana connecter because they are waterproof. Good quaility adapter, yes a little pricey but worth it to me. My Exceed Rally Monster with the stock brushed motor got up to 31 mph with the 3800 mah and 49 mph with the Hexfly 5000mah NiHM. Not bad but I do have a Tacon Brushless coming..