I purchased a ECX 1/24 Roost to run on an indoor RCP style foam track. When I first took the Roost out of the box I wasn’t very impressed and I was seriously thinking about sending it back. The battery life just sucked, I was getting maybe 3 minutes or maybe 4 at the most. It would also turn on it’s own without me even touching the steering wheel. Kept messing with it as it was fun when it was running right. Which was maybe the 1st minute and a half. Well this is what I found out about it from checking the forums and some 1st hand experience.
Battery life issue:
It comes with a 220 mAh 4.8v NiMH battery which needs to be cycled 5-6 times before it starts working right. Don’t think this is a ECX thing but a NiMH battery thing. I’m not getting about 13 minutes with it running on the patio Wide L track
The steering issue is in part because the battery was sagging upon throttle application as the battery cycled this got much better. Now it only happens when the battery is getting low.
I also noticed that the wheels seemed loose. I tightened then up till the wheels were hard to turn them backed the nut off 1 turn. The wheels now turn freely and there is very little wobble.
The only other thing I have found is for what ever reason the battery leads are reversed, maybe this is a NiMH thing so they don’t get confused with a 1s lipo with the same connector. So if you want to use both a 1s lipo and the NiMH you will need to reverse the leads on the lipo or do what I did reverse the ones on the ECX and the NiMH battery. Just makes my life easier. This way I don’t have to have have 2 different charging leads, one for the 1s lipos & another for the NiMH batteries.
The truck will run fine on a 1s lipo, it’s a little slower but not that noticeable on the track at least not running by itself. Might be different if more were on the track. There is no lipo cutoff so you have to time your runs so that you don’t run down the battery to far. What I have found is when the lipo start to get low the steering will start to act up. At this point the battery was still well above the 3.2v mark. With the lipo I’m getting about 25 minutes of run time on the track.