So is the voltage fluctuation really a problem for anyone? I didn’t get my BT mod installed before parking my board for the winter, My anti-spark blew, switched to loop key and didn’t want to mess with it anymore, just ride. .5 volts to 1 volt is what im reading on here, that just affects the cutoffs, currect? So theoretically it only affects range and battery safety at low levels?
Honestly for me it only floats ±0.3v. it doesn’t hurt charging. And if you are not setting your min cell voltage to 2.5v per cell it does matter much. I have it set to 3v min so it can go as low as 2.7v and I rarely hit low battery with my 13s4p pack 30+ miles range
Just the cut off. I installed a loud low voltage alarm for my lipos… problem solved…
On 12s it gives me an error of about 1-2V so like 0.2V max per cell. I just set the cut of a bit lower and never drain the battery. For the rest is fine. Only difference compare my 4.12 set up is the regenerative braking that I needed to set higher in order to have decent brake.
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whoops sorry im using the 6.6 singles. at 13s
Me too 
, but I think the reading problem is the same
Forgot to post my experience with the FSESC 6.6 dual and Flipsky after sales service here. One half of my VESC started to blink red out of nowhere and then decided to give up (this was during motor setup). I didn’t smell anything burn or hear anything pop. Flipsky, after a short email correspondence where they suggested reflashing firmware, asked me to send it back for repair and sent a replacement 6.6 dual.
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Are you running at 13s on FOC? Can you share your settings, motor size and kV? Is it on a board or an e-bike?
13s on FOC,
Hummie hubs 75kv so very very low erpm but I have spun my 130kb 24 poles Mad hubs at 52V hiting 92k+ erpm without any problem.
60/60 motorA, 40/-12 BattA
It looks like 3000W. That’s fantastic!!! Thanks
I contacted them and they said the problem does not exist for those singles. How erratic are your voltage readings from the battery with the single FSESC 6.6? Thanks.
The mad hubs are 28 poles so even more erpm 
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Wait arent these the hubs that toruqeboards has 
Everytime I see someone talk about them I wonder how many times I pushed my vescs to deaths door 
Yes they are. they can be 75 or 130Kv two types for the same hubs. Depends which one you have. Anyhow I also used the 130Kv with Maytech 4.12 vesc. As long you riding them you won’t reach the 60K otherwise you are flying on the street (calculate the speed). Problem if you spin them fast on bench with 4.12 old vesc.
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I had the 130kv ones, took me the fastest Ive ever been on a board(40mph :o)
alright ill stop cluttering your topic now ^-^
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Not my topic Same for me they bring you to the top speed you dare to reach 
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40mhp!!! damn like Bigboytoy from the forum. I guess you had them at 12s?
In my experience (dual singles), overall they read -1.5/2V for a 12s battery so 0.16 off on single cell. it bothers me, but so far so good
to be totally honest, I could have been a few mph off, as it was measured on my note 8 (with no cellular but wifi GPS )
But it was the hubs with a space cell pro 4 40a batt max each motor and 95mm wheels
All i remember was the normal sound of the hubs… and then it went BALLISTIC and I started to gain speed very quickly 
(sort of like when the motor reaches that little slice of RPM where its most efficient in power delivery, but more agressive)
I ran out of room on the road (they started to become windy with not alot of headroom for seeing cars 
)
The best part was my math teacher saw the whole thing(hes like a father to me, helped me build the darn thing) and his jaw was on the floor 
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fuxx! It sounds scary! I topped 32mhp at 10s because with my small 10s3p battery I hit all the limits in the vesc setting. Still really fast for me (spud board). Now I am converting them to a DD, but I will use the 75Kv version with a 12s3p battery.
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