I have talk to evolve about the b0 wire because my board came without it. They said that the negative lead that is for the management and not for the straight power is not needed my bms has 11 pins but only 10 wires coming out of it. They said the negative isn’t needed when I get a chance I will take pics of my upgraded battery and the bms
That looks right. And yes, the black wire is hit or miss, as is the heat sink and fishpaper on the BMS.
you just never know what you’ll get in there. Expect nothing, be prepared for anything.
@krloz Thanks for fixing my sloppy awg/wire thickness terminology.
LOOKS LIKE THE PROBLEM IS FIXED!
Thanks to everyones input I changed the b- wire from 16awg to 12awg and i tested with some big hills pulling the max amps (60a total, 30a per motor), the b0 wire is not melting anymore!
As stated previusly the stock b- wire is 14awg and i accidently initially rewired with 16 awg, i am surprised evolve chose the stock 14awg setup…it so close to the margin of safety!
Question: Can somebody explain why the 16awg resulted in b0 melting? It seems to me if the b- wire was too thin the b- should have been the wire to melt???
@longhairedboy and @Lambjr088 Thank you for confirming that there is a mix of BMS units that use all 11 balance wire and some have use 10 with the b0 clipped. @Lambjr088 please let me know if you can get more info from evolve about this. At first I thought that maybe the older BMS units were 10 leads with b0 clipped and the newer ones used all 11 but I made a VERY INTERSTEING discovery when I compared the 4 evolve gt BMS units that I have: If you look closely there are minor differences on chips/diodes/resisistors on the BMS units depending on the manufacture date/serial number: The oldest is serial SP-M10-020-A05 date 2016-07-29 —> it uses all 11 leads The next is serial SP-M10-020-A07 date 2016-10-09 —> it used 10 leads with b0 clipped Newest (I have 2 from this batch) is serial SP-M10-020-A09 date 2016-12-08—> it uses all 11 leads
If you will notice it is not the newest or oldest BMS units that run 10 leads but the one from the middle date production. Like I said all three of these serials have subtle differences that I can see on the board. I am so curious if there is something we can do so that b0 wire does not have to be used on any of the BMS units (one less thing to break), and I am very curious why it is the MIDDLE production BMS that seems to be configured this way.
Thanks everybody 
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To small of a b- wire caused a resistance when power was taken through it that caused some of the power to travel through another path. That path being the parallel b0 wire which as we know is not good for any power usage
Simply put. They were forced to share the power input to the bms And the b0 melted faster than the b- had time to heat up and melt
Hi, my Evolve Bamboo has the same issue. Can I ask what Focboxes and 6374s, BMS and a Mini remote you went with? I’m think of doing the same. Thanks, Wayne.
Hy guys!
Does anyone know to tell me that effectively serving these cables here that are connected to ESC Evolve?
What is the question?
What’s the function of these cables in ESC
The 4 wires, or the 2 wires?
The two wires I think go to a power switch – and the 4 wires carry the encryption codes to make the ESC only function from an actual Evolve BMS.
Actually, they all. I thought I was supposed to power switch, too, but there’s a way out of the other side that connects the power button, so I m confused. And what would those duties be?
What do you mean?
The ESC is programmed to only work with an Evolve BMS.
So, just that, it’s make sense… I thought UART was some security protocol from coming to BMS. …and the other switch power on the ESC?
UART is only the protocol it’s using to transmit the information.
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Does anyone know what this function is coming from BMS (BATSW)? What’s the use for? Tks!
Thank Yous B
I think that’s the power switch.
But… why two connections from the battery?
The two connections are from the BMS inside the battery.
Interesting, a tension just for this protocol so 