1/16 revo with 2 2200mah lipos 10 minutes??
 

I bought my son a 1/16 revo and bought 2 2 cell 2200mah lipos, wired them up parallel pos pos neg neg and it lasts all of 10 minutes in training mode?? Any ideas why? I strap on one battery by itself about 15 minutes,, heck the stock battery went 10 minutes.

What batteries were you using? Where they fully charged?

flightmaxx and yes balanced and charged,, nothing in the drivetrain binding as I redid the diffs yesterday and they were empty of course.. by the way any owners of these you will want to pull the diffs apart before running long as alot of people say their diffs are empty when the open em up..
By the way guys.. I am jldjlaudio on rctech and not new to this hobby by any means,, just new to the BL stuff as I havve a full size BL revo and so does my wife. Just nothing going right on my 3 yr olds lil revo!

These are what I bought.. https://www.hobbycity.com/hobbycity/...idProduct=6540 and have Deans ultra plugs on everything

Only two things I can think of is training mode somehow draining the batteries faster or the batteries were plugged in and the car sat awhile. I would take it out of training mode and see how long that lasts.

Did you have training mode on when you ran one battery for 15 minutes?

yup always been in training mode.I will run it with 2 batteries and then 1 and try different modes and take temps and runtimes and post up everything and go from there...

That is really weird. If it happens once it can just be a fluke, keep running (so long as nothing is overheating) and see what happens.

On both batteries it ran 7 minutes and then slowed way down and lasted about 20 minutes on both,, esc 180 motor 170 lipos cool still.

and that was sport mode not training mode.

Hmmm.. Maybe you confused thermaling with the lipo cutoff? Or with the 1/10th scale vxls wasn't there an issue with a sensitive cutoff? With your temps I think you need to gear down. I bet the esc is thermaling and that's making it slow down. I also wouldn't rule out the motor could be going bad at those temps...

I dunno that much about bl stuff and lipos yet but I do know this thing should not be having all these issues being like new still... I am running the stock gearing which alot of others said this thing should run like a monster with the stock set up and these lipos! it's making me mad how these companies can sell these RC cars as RTR and alot of people do not have internet or even then they don't hunt around to see all the issues like this.. My 8ight t 2.0 had alot of crap wrong with it out of the box and now this one does as well.. any other joe shmo would have bought it for their kid and then poof issues and they would think they were at fault and just go out and spend more money to replace stuff. I don't want a car that after a week I gotta rip it apart and find no diff lube in the thing, or these problems and on and on ECT! I would rather send this thing to someone other than traxxas to find the problem as their the ones who made the thing and it came out of the box with issues!!!!

Have you checked the voltage of your lipos at the end of your run?

You're probably not using all of the charge.

I would say the esc is probably going thermal.

and I fix that how??

Gear down. Are you running the stock tires? It also could be your driving style, I dunno. Maybe you're a little harder on your stuff then other people? Not saying you are hard on stuff or that's a bad thing, but just throwing that out there as a possibility.

The gearing. Traxxas needs to advertize. To help boost sales, they advertize the truck will go 60mph+. The only way to do that is by gearing a little too high. Some people won't have issues and some people will.

Also, if your motor turns out to be damaged by the heat, you could probably send it into traxxas. It's not a fun or quick thing to do, but it might be your best option.

yeah when I find the gears to go down I will.. And I'm ready to send this whole pile of poo into them and see what they say!

Have u put the low detection on?

yuppers hold for 10 seconds and chirps ..

hmmm try to bind it again or send in the motor or esc to traxxas

Yeah I thought to send the whole thing in and then they can see what the problem is.. I just want it to work right!

I can understand your frustration, however, tinkering is part of the rc hobby. I just got my savage flux in the mail today and before I even turned it on had the diffs apart, then had to mod the battery boxes. Took me quite a while to get it together and make sure it was all correct before running it for 5 minutes to do a whole pile of cartwheels breaking a steering knuckle.


You will ALWAYS be tearing that thing apart, checking temps, lubing, breaking ect. ect.

What voltage are the packs at when you take them off the truck, then how many MAH do they take back in?

20c rating packs and hyperion charger and a racers edge super 2000 charger balancing every time. They are at 8.4/4.2 after charging 4.2 individually Ill take voltage off the truck tomorrow!

:rofl: trust me I know more than most just new to the BL side of it all..

Man, you'll love brushless. Were you previously a nitro guy?

Sounds like the ESC is thermaling.

Throw in the 'Speed pinion' that was included in the truck (it is 23T vs the stock installed 28T pinion) and it will significantly help with the heat. Will also naturally slow the truck down so you might not need to run it in training mode.

If running 2s you should be fine with the stock pinion. If you are running 2s in parallel and getting 7 minutes but if you run an individual pack and get 20 minutes you may want to check your parallel adapter. Try taking it out of training mode and see if that works.

Yes I was a nitro guy for over 15 yrs. I love my BL revo!

If they come own to anything but 3.0-3.5 your lvc is set wrong.

Are you running stock tires?

The motor/esc do sound awefully hot, esp for the smaller rig. If the motor got much hotter than that it could have toasted it right from the get go. It will get hot, and will cause a heck of a drain on the batts. That doesn't explain the run time on 1 pack. This is a weird one.

Not weird anymore,, I ran it with 1 battery and about 10 minutes it slowed way down so I let it sit after turning it off, DID NOT RECHARGE THE BATTERY.. It cooled down and I fired it right back up and it moved just like it had a full charge... The esc was going into protection from all the heat and shutting itself down. BLinking red light.. Why they mounted the motor almost on top of the esc i don't know but the 2 biggest heat sources the heat can't go away fast enough before boom it goes into thermal and shuts down..
SO I pulled the ESC away from the motor and reran and what do ya know, went past 10 minutes run time and lasted about 20 or so with tons of power on one lipo. I knew that was the problem so now I gotta figure out a total fix.. heatsink and fan on both units may do it or one fan on both. Gotta find a heatsink for the motor,, any ideas? Stock gearing it should not do this crap but if all I have to do is heatsink the motor or fan it so my kid can drive then Im good with it!

crt .5 rims with bowties. But it did this with stockers too!

The reason I was wondering tiresw is because if they are bigger it's like gearing up. A heatsink for any 28mm motor should work, but first I would gear down....

You could also mount a fan redneck style to cool the electronics... Cutting holes in the body will help too.

Yeah a fan would be nice,, just gotta find the right size!! And holes are already in the body all over the place as of today so it did help I'm sure!

found this fan, whatcha think? http://cgi.ebay.com/ws/eBayISAPI.dll...lenotsupported