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  #161  
Old 08-22-2018, 08:05 PM
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Hopefully this second one goes that smoothly

Step 1.)
I melted (2) more solder blobs
...where the Lima bean was mounted

Step 2.)
I gripped the second jumper with a clamp
…pressed (1) end of it to (1) of the solder blobs
…& then, used the soldering iron to solder them together

Step 3.)
I pressed the other end of the jumper to the second blob
…& soldered them together too

Boom!, I think we did it

Now, I just gotta reinstall this yellow wire
…& put the ends back on
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SAM_1974.jpg   SAM_1975.jpg  

SAM_1976.jpg   SAM_1979.jpg  

SAM_1982.jpg  
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  #162  
Old 08-23-2018, 08:43 AM
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Lets "fire this thing up" & see if it works

Took 'er out to the bike, plugged the AC input plug into an extension cord & turned the switch on

The red & green lights lit up
…& No Magic Smoke

Before connecting it to the bike, I flipped the balance monitor on to get an initial voltage reading
...43V is showing on the Tri-Quad
…& 21.6V is showing on both of the balance monitors

Then, I plugged the DC output plug into the charge port on the bike
…& both red lights, on the charger, lit up

Now, lets see how long this takes
…& to what voltage the battery pack gets charged back up to
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SAM_1990.jpg   SAM_1989.jpg  

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  #163  
Old 08-24-2018, 01:32 PM
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I recorded the voltage of the battery pack before starting
mulit-meter: 43V
balance monitor: 21.6V / 21.6V

I connected the Yewi UY-600 charger @ 4:45pm
...both red lights lit up but, the fan was not on

I didn't want to turn the circuit breaker on, to get a reading from the Tri-Quad
...or keep messing with the MM
...so, I just took hourly voltage readings from the balance monitor

1 hour 5:45pm 22.8V / 22.8V 2 red lights & yes the fan is on
2 hours 6:45pm 23.8 V/ 23.8V 2 red lights & yes the fan is on
3 hours 7:45pm 24.3V / 24.3V 2 red lights & no the fan is off
4 hours 8:45pm 24.4V / 24.4V 2 red lights & no the fan is off
5 hours 9:45 pm 24.4V / 24.4V 1 red light & 1 green light & no fan

Unhooked the charger, turned the circuit breaker on
...& got 49.7V from the Tri-Quad

Hmmm, it should be topped off @ 49V (but, who knows how accurate these Chinese meters are?)

So, I waited an hour & took more readings (rested voltage)

6 hours ~11:00 pm

Tri-Quad: 49.7V
Balance monitor: 24.4V / 24.4V

The next morning I took some more readings (overnight rested voltage)
16 hours ~9:00am

Tri-Quad: 49.8V
Balance monitor: 24.4V / 24.4V (48.8V total)
Multi-meter: 50.6V
Wow!, (3) different Chinese meters with (3) different readings
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  #164  
Old 08-27-2018, 10:00 AM
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Design flaw:
I can't really see the Amp/Volt meter too good while riding
...the digits are too small
…& it's angled down a little, too "flat" also

That's what R & D is all about

The next Tri-Quad (or what ever meter I come up with)
...will have bigger digits (like the ones on the Balance Monitor)
…& be angled back a little bit too

I want to see what this thing is doing
...but, its kinda hard to watch the meters & drive/ride

So, to gather some data, I set up the camera, to record the dash board, while I took a little ride



I also finally got the historical license plate in the mail

I folded the registration up (expiration date 2050)
...put it in the plastic bag from the BMV that the plate came in (to protect it, I need it to last a long time)
...& tucked it under the "papers protector flap" under the seat

Gettin' closer to bein' legal
Attached Thumbnails
SAM_2036.jpg   SAM_2025.jpg  

SAM_2027.jpg   SAM_2029.jpg  

SAM_2031.jpg  
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  #165  
Old 08-28-2018, 12:17 AM
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Very cool
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  #166  
Old 08-29-2018, 07:56 AM
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That ride was fun, after reviewing the data, it looks like the voltage sag was usually ~1V but, also I saw ~2V drop several times too

If you look closely @ ~3:00, I saw the Amps hit ~500A

I didn't do top speed or "really long pulls" yet
I am kinda taking my time
I am still getting a "feel" for her

I set up the camera & did some more testing, after charging, of course

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  #167  
Old 08-31-2018, 07:33 AM
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Everything seems to be working well.

I am kinda surprised about the 500A readings
...running thru a 150A circuit breaker
…& it not triggering

I have checked the temp (by hand) several times
…but, it was never (even) warm to the touch

So, I guess were OK
...I'll still keep an eye on it

The top speed seems to be right at 35 MPH
...which is ...Kool!
...it moves right along
...& the amp draw @ top speed seemed to only be ~20 - 30A on average

Here is more "good" data

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