mamba max esc problem!!!!! Big
#1
Thread Starter
Tech Rookie
Joined: Jan 2012
Posts: 1
So heres my problem my mamba max esc is supposed to send 5volts to my reciever so that i can get a signal I checked the voltage on the red wire coming from my esc with my 6 cell pluged in and im only getting 1 volt the only way it works is if i use a external (4 double aa pack) and plug it into the reciever what is the problem its going on a traxxas stampede
#3
Tech Adept
Joined: Dec 2010
Posts: 158
From: wichita, ks
I have a problem too, but I don't know if its the esc. I have a MMP system with the 5700 kV motor. Almost everytime I accelerate hard from a stand still or low rpm my truck will move then suddenly slam on the brakes then take off again. I only ran it once and nothing overheated. Everything was running nice except once in a while it would just slam on the brakes by itself. Also I am new to Lipos and Brushless, how exactly does the lcv works in the esc? Will it just stop sending power from the battery so the vehicle won't move at all? I am using a 5400mah 20c 2s with my MMP system in a sc10 4x4. I've only ran it in a parking lot, and it ran for at least a half an hour with no overheating. When I stop using it the truck was still pulling hard like there was still alot of power in the battery. Should the battery be lasting that long? When I programmed the esc I set the lcv too 6v.
#4
A hlaf hour of run time doesnt sound out of the ordinary with that size of a pack (wish it was a higher C rating but thats a different story).
Check your settings using the castle link software. The LVC will kick in and you should just have steering at that point. 6.0v is a little lower than I like (usually leave it at 2.3v so 6.6v total) as if you have one cell that is weaker it might dip under what I would be comfortable with.
Check your settings using the castle link software. The LVC will kick in and you should just have steering at that point. 6.0v is a little lower than I like (usually leave it at 2.3v so 6.6v total) as if you have one cell that is weaker it might dip under what I would be comfortable with.
#5
Tech Master
iTrader: (3)
Joined: Jul 2008
Posts: 1,465
From: Melbourne, Australia
LVC is far too low if you set it for 3.0v / cell
If you want your batteries to last a while it should be set a lot higher
A lipo cell is empty at a resting voltage of around 3.5v, no useable capcity below that and all your do is risk killing your packs early
Good rule to follow is the 80/20
Set your LVC for 3.5v / cell
Packs should come out of the car at around 3.7v / cell (resting voltage)
That means you have left around 20% capacity remaining in the pack
When charging you should be aiming to add 80% of your packs rated capacity
5000mah sized pack, 4000mah added when charging
Cheers
If you want your batteries to last a while it should be set a lot higher
A lipo cell is empty at a resting voltage of around 3.5v, no useable capcity below that and all your do is risk killing your packs early
Good rule to follow is the 80/20
Set your LVC for 3.5v / cell
Packs should come out of the car at around 3.7v / cell (resting voltage)
That means you have left around 20% capacity remaining in the pack
When charging you should be aiming to add 80% of your packs rated capacity
5000mah sized pack, 4000mah added when charging
Cheers




