Mr. Edward Lyen Lying?

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Mr. Edward Lyen Lying?

Postby coolbobjoe » Wed Sep 06, 2017 6:46 pm

Lyen lying? seems to be true.
Asked him to originally modify a 22S 40 amp BMS - he quoted me twenty bucks to get it up to a good ol 80 amps. cool- sweet dealio man.
Arrived to find out he skimped on tracing the board via ElectricGod.
Then find that there are only three new resistors in parallel with the old six for nine total. ohms law is pretty sound in stating that there needs to be 12 in order to half the resistance.

On to the second confusions- bought a bunch of shunts for doing a couple projects. 4 for an external diy shunt for CA3
I have an EB318 18 FET controller which Lyen told me had only two shunts in it. so two more to double the resistance. Go in today to do all internal controller mods and fixes and guess what? oh there's actually three shunts in there mr lying?
Messaged him asking to make things right on both ends and get
"No, you are wrong."
"I don't want to argue with you anymore. Bye"

Anybody else think Lyen has gotten a little out of hand here?
Anyone else with poor or positive experiences please post. I would love to get this worked out with Mr. Edward Lyen so let me know if you are friends and can put in a word to finish the job he so poorly started.
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Re: Mr. Edward Lyen Lying?

Postby nicobie » Thu Sep 07, 2017 1:38 pm

Lyen has always been good to me.
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May your tote always stay tight and your edge eversharp :wink:

my eTownie build thread: viewtopic.php?f=6&t=23701
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Re: Mr. Edward Lyen Lying?

Postby Addy » Thu Sep 07, 2017 1:44 pm

Are all the resistors the same values? If the new resistors are different values then you wouldn't need to double them.
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Re: Mr. Edward Lyen Lying?

Postby coolbobjoe » Thu Sep 07, 2017 2:36 pm

nice catch addy upon further inspection i find more of a shit show! R004 resistors on top of R005 resistors. WHAT IN THE frock
Old resistance- 0.000833333 Ohms
New resistance- 0.000512821 Ohms

Scale factor of 1.625x

So if old BMS did "40 constant amps" it would now do 40x1.625= 65 amps

Still not 80 and what kind of multpilication factor is 1.625x? at least use R005 for a good clean 1.5x so math isnt ridiculous. Starting to look like he ran out of parts and didn't give a shit/ thought he could fool me cause i couldnt see the old resistors underneath? Im not sure what his game is
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Re: Mr. Edward Lyen Lying?

Postby nicobie » Fri Sep 08, 2017 2:45 pm

I can see why Ed didn't want to deal with you. :wink:
Image

May your tote always stay tight and your edge eversharp :wink:

my eTownie build thread: viewtopic.php?f=6&t=23701
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Re: Mr. Edward Lyen Lying?

Postby sacko » Fri Sep 08, 2017 2:55 pm

nicobie wrote:I can see why Ed didn't want to deal with you. :wink:


Was thinking the same thing. Probably explains the lack of replies on this thread too! :lol:
Last edited by sacko on Fri Sep 08, 2017 2:58 pm, edited 1 time in total. View post history.
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Re: Mr. Edward Lyen Lying?

Postby liveforphysics » Fri Sep 08, 2017 4:20 pm

coolbobjoe wrote:nice catch addy upon further inspection i find more of a shit show! R004 resistors on top of R005 resistors. WHAT IN THE frock
Old resistance- 0.000833333 Ohms
New resistance- 0.000512821 Ohms

Scale factor of 1.625x

So if old BMS did "40 constant amps" it would now do 40x1.625= 65 amps

Still not 80 and what kind of multpilication factor is 1.625x? at least use R005 for a good clean 1.5x so math isnt ridiculous. Starting to look like he ran out of parts and didn't give a shit/ thought he could fool me cause i couldnt see the old resistors underneath? Im not sure what his game is


With an adjustment if resistor values in the shunts output amplifier, he could leave the shunt resistance stock and double or triple current if he wants.
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Re: Mr. Edward Lyen Lying?

Postby dustNbone » Fri Sep 08, 2017 5:58 pm

Have you actually tested it?
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Re: Mr. Edward Lyen Lying?

Postby coolbobjoe » Wed Sep 13, 2017 1:57 am

yes, 10-12 amps it cuts out now awesome.
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Re: Mr. Edward Lyen Lying?

Postby amberwolf » Wed Sep 13, 2017 4:29 am

When it cuts out, what do each of the cells (groups) read at the balance wires, at the moment of cutout? It could be cutting out because voltage at a balance wire drops below LVC, rather than the current limit.
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