E-GO by Yuneec Internationl

Lightweight / Folding / Portable EVs - seats optional

Re: E-GO by Yuneec Internationl

Postby UselessCookie » Wed Apr 26, 2017 10:37 am

Hey everyone,

Im quite new on this forum, I've been eagerly reading through this post as I am an owner of a Yunned E-go as well. It was great to ride at first as well, but it's speed and even range is a little underwhelming to me now.

I have considered all possible ways of upgrading the E-go, and my best best would be to run a 10s LiPo setup with my board. In case 10s fries my ESC I will buy a VESC anyways.
I still cannot decide wether to put 2x5s 8000mah (https://hobbyking.com/de_de/zippy-fligh ... p-30c.html) in series or get two 10s LiPos with 4000mah (like these https://hobbyking.com/de_de/zippy-compa ... -pack.html)

As 10s chargers would cost me alot more money, I would stick with the 5s ones at first.
My main question here would be whether just to use these Zippy compact series Lipos, as they seem to be cheaper and well, smaller.
While the large ones have a discharge rate of 30C, the smaller compact series LiPos only have a constant output rate of 25C or sometimes even 20C. I was wondering how much the C rating matters in this case and whether 25C would make a big difference in terms of speed when compared to 30C. I dont know how many Amps the motor draws with people that have been using 10s, but perhaps the lower 25C ones could still supply the board with enough power like the 30C ones.

With everyone here using the normal type LiPo sizes, I'd like to give Zippys compact bats a try as well, Im just not sure whether they will be enough for a 10s setup


Anyways, this thread may not be very active anymore, but it would still be appreiated if anyone could help me on this topic!
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Re: E-GO by Yuneec Internationl

Postby Hummina Shadeeba » Wed Apr 26, 2017 12:52 pm

assuming they exaggerate by half lets call it 12c rating. 12 times 8ah...about a 100 amps possible continuously. Enough for sure and you'll maybe do 50 amps peak, assuming with the vesc, but with the e-go esc it probably is set to suck a lot less amps. If you search i think you'll find someone who tried higher voltage. 12s sounds way high and will likely snap. when it does snap make sure to change the erpm limit on the vesc to something lower with 12s as the motor's kv is surely too high for 12s
Last edited by Hummina Shadeeba on Wed Apr 26, 2017 12:55 pm, edited 1 time in total. View post history.
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Re: E-GO by Yuneec Internationl

Postby UselessCookie » Fri Apr 28, 2017 3:26 pm

Hummina Shadeeba wrote:assuming they exaggerate by half lets call it 12c rating. 12 times 8ah...about a 100 amps possible continuously. Enough for sure and you'll maybe do 50 amps peak, assuming with the vesc, but with the e-go esc it probably is set to suck a lot less amps. If you search i think you'll find someone who tried higher voltage. 12s sounds way high and will likely snap. when it does snap make sure to change the erpm limit on the vesc to something lower with 12s as the motor's kv is surely too high for 12s


I understand, thanks. I was planning on using two 5s LiPos, so I would have 10s, not 12s. By the way, have people tried hooking up a higher kv Motor with the E-Go?
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Re: E-GO by Yuneec Internationl

Postby Hummina Shadeeba » Sat Apr 29, 2017 1:02 am

ah yes you say 10s like 3 times.

i think someone in this monster thread has changed the motor and the battery

it might only be 6 or 7s or 8s originally and even 10s will snap. id read back and find it.
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Re: E-GO by Yuneec Internationl

Postby scepterr » Fri Jun 16, 2017 11:10 pm

Hey guys, ok so I'm upgrading the battery on my ego2 to at least 9S2P maybe 3P (LG MF1 2200mah/10A). Unfortunately only got one quite fast ride down the block with it, about 2 seconds applying full break and ecu died. Opened it up and one of the IC between the 2 big caps blew up. New ecu is on the way. I am using a BMS with the battery, is there some current blocking required with a nonstock BMS or something else that can be done to the ecu to disable regen, which I think is the issue. For those still interested in modding the battery on the ego2 you can get an empty battery casing with switch and power port from yuneec for $30, I got 2 so I can have pretty much swappable batteries and everything looks stock
IMG_20170616_165316_01-2320x776.jpg
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Re: E-GO by Yuneec Internationl

Postby scepterr » Thu Jun 22, 2017 10:27 pm

Ok so identified the IC, it's the TI TPS5450, got replacements and replaced it, works great with stock battery, with the 9S as soon as I hit breaks it blows up again and works after another replacement with stock battery. Anybody have any suggestions?
IMG_20170619_141830-1392x1856.jpg
IMG_20170622_151700_01-2213x973.jpg

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