MOVMX Racer

Hey guys... here is the short version:
I am in the process of turning a Powerwheels, and it needs an ESC. I already got the go-ahead from the person I'm building it for to get an ESC, I just need a couple of questions answered first. It is a dual 550 motor powerwheels (motors look like Traxxas Titans, but without the logo) and has a single 12v battery.

One: I am looking at the HPI GT 14.4v ESC and the Traxxas EVX2 16.8v ESC. Both have dual battery inputs, but I will be running the 12V battery on one input. Will this harm the ESC? I know they are meant for that voltage on two inputs, but I'm worried that that voltage on a single input will overload it.

Two: I know of the HPI and Traxxas ESCs, are both good ESCs? Any problems with either?

Three: Other than Traxxas and HPI, who CURRENTLY makes a 12v capable ESC? I know Novak used to make one, but I need one that is still made.

Let me know! Thanks!

sheograth

You can run a single 12V battery, just jump the other connector - they're simply wired in series.

The EVX-2 is probably you're best bet, it can handle most anything you want.

MOVMX Racer

Okay. I think I'll try the HPI esc for now, I can get one for under $20, so if it dies its no big deal.

sheograth

At that price definitely go for it, can't go wrong.

Access

Can't do it. Normally those 14.8V ESCs run two batteries while the BEC, a linear circuit, is run off just one battery. The linear BEC isn't designed to be run at more than ~9V. If all you have is a 12V battery, the BEC will run off that one only at 12V, which it isn't designed to run at. It might burn up instantly, or it might overheat, either way not recommended. If it's possible to bypass the BEC, you might be okay, though.

Barber420

My Feedback: (1)

If your HPI ESC fails you I'd go with a Novak Super Duty XR. Much better unit than either the HPI or the EVX-2. It's also pretty much waterproof. I have one and I love. I was originally looking at the EVX-2, but the wise people of RCU told me to go the Novak route for a little more $ and they were exactly right!!!!

MOVMX Racer

Well, I was outbid on the HPI, and went with the Traxxas EVX2. I now know that it IS entirely possible to jump one of the battery connections to run a single battery, it is even shown on an EVX2 FAQ on the Traxxas website. Now I just need to order the servos, Y-Harness, and 10 amp BEC to power them, and it will be ready to assmble.

hands without shadows

You know to disconnect the internal BEC right?

MOVMX Racer

How do I disconnect it? Why do I need to?

EDIT: Is it because I will be running a separate BEC for the servos?

What to I disconnect to get rid of the BEC?