MMMv2 Problem....Or maybe not????

[jhautz]

OK so this V2 MMM gave me more problems to the point I couldn't get it to start up. I pulled it out and and I have been messing around with it cuz it will still start up occasionally and run for a bit before it stops. Very weird. Haven't heard of anyone else having this problem.

I started checking the BEC output voltage and when I flip the switch and it works it puts out around 6.2 volts from the BEC. When it doesn't boot up it only puts out between 2 and 3.2v randomly.

I am wondering if the BEC voltage was changed on the V2 back up to 6v from the 5.5v the V1 was supposed to be putting out. When I test the only functioning V1 I have it puts out 5.43v consistently, so this is in line with the original 5.5v spec that CC said.

Just wondering if anyone has a functioning V2 they could check the BEC output voltage on. I just found it a bit weird that it was putting out over the rated 5.5v. Of course its a messed up V2 so I have no idea.

I'm mostly just wondering if they changed the output voltage on the V2 to around 6v

If someone could check theirs I am very curiuos.

[jhautz]

OK I had the other V2 still sealed in the box that I want sure If I wanted to open. Well this 6v thing got me curiuos so I broke the seal and plugged the wires from the messed up V2 into it just to check the BEC output voltage. It is putting out 6v. It looks like CC bumped the BEC votage on the V2 up to 6v from the 5.5 V that the V1 was putting out.

I wounder why they did this and didnt mention it?

I'm still running V1's but one off them started to act up just like yours. I turned off the LVC and it works fine. I just have to time my runs now.

[jhautz]

Thats wierd... Wonder why the LVC would have anything to do with the BEC. I'm going to call CC tomorrow and see if anyone can shine some light on it and get the 2 dead MMMs I have here exchanged.

I guess I could put it back in and see if that works, but I dont really feel like it. They can do their own trouble shooting. I'm tired of it. I have 4 of these things in rotation now. As they die I send them in for replacement and toss in a new one. Hopefully the replacemnts are back before the next ones die. I just hope the 4 is enough to keep the truggy running for the rest of the race season. lol The V2s seem to be dieing pretty fast.

[lincpimp]

Mine did something similar, it would shut off, then when the switch was cycled it would do fine until the throttle was pressed and it would switch off. I swapped it out for a spare v2 that I had not used yet. I will see what voltage that one puts out and report back...

[e-mike]

mine do the same thing....run good 3 minute and died i power off-on good againt for 3 min..and it really died...the strangest thing is on 4 cell it was a rocket....on 6 cell lipo loll a lot of fu..&*??&* fun