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Old 05-28-2018, 03:28 AM   #61 (permalink)
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Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)

Little Boy Blue - '05 Toyota Echo
90 day: 33.35 mpg (US)

BlueZ - '19 Nissan 370Z Sport
90 day: 17.19 mpg (US)
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Blue bike found a new home a day or two after being fixed. Red is waiting on parts.

Scooter/moped upgrade time! Brought this "fixer-upper" home this morning:



Doesn't appear to need much. New batteries, a few minor bits and bobs. Better shape than the one it's replacing started out.

Much more modern, and better quality. Hydraulic disc brake on the front, drum on the rear, more solid frame. Still Chinese, but made by a company that mostly builds gas scooters rather than cheap e-bikes. Hopefully it lives up to expectation!

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Old 05-28-2018, 01:53 PM   #62 (permalink)
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Join Date: Sep 2012
Location: Victoria, BC
Posts: 1,224

Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)

Little Boy Blue - '05 Toyota Echo
90 day: 33.35 mpg (US)

BlueZ - '19 Nissan 370Z Sport
90 day: 17.19 mpg (US)
Thanks: 41
Thanked 345 Times in 259 Posts
Thumbs up

It does!

It's not quite as strong as I'd like, but that's probably the half-done lead acid batteries I was using. I'll find out for sure once I reconfigure my lithium pack to fit!

But, making up for it, it turns out that it has regenerative braking! I'm thrilled!

That might not seem all that note worthy, especially with the sturdy brakes on it, but it was one big let-down on my previous one. And good luck buying an after-market controller affordably that will do regen.

Despite the lead, I got it up to 40km/hr on level ground, in "third gear". It has 3 virtual gears, and a switch to choose them. And a mechanical speedo, so it's not completely out to lunch with the reported speed. Bench tested/no-load, with my lithium pack (~56v), it was spinning at ~50km/hr. Not bad for a 500-watt motor!

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Old 05-29-2018, 03:24 PM   #63 (permalink)
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Join Date: Sep 2012
Location: Victoria, BC
Posts: 1,224

Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)

Little Boy Blue - '05 Toyota Echo
90 day: 33.35 mpg (US)

BlueZ - '19 Nissan 370Z Sport
90 day: 17.19 mpg (US)
Thanks: 41
Thanked 345 Times in 259 Posts
Reconfigured my lithium pack to make it shorter, and swapped out two of the individual packs for healthier one, so I can get the full 21+ amp-hours out of it.

Rebuilt the battery tray to be 3" longer and 2" wider, out of old 1/4" ABS(?). Took longer than expected.



Now it will hold either chemistry of battery belowthe under-seat storage.



I will make a false bottom for the under-seat storage out of a new piece of 1/4" ABS I have laying around. And I will re-route the breaker, if it will fit underneath.

That's the big stuff out of the way.
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Old 06-04-2018, 11:18 AM   #64 (permalink)
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Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)

Little Boy Blue - '05 Toyota Echo
90 day: 33.35 mpg (US)

BlueZ - '19 Nissan 370Z Sport
90 day: 17.19 mpg (US)
Thanks: 41
Thanked 345 Times in 259 Posts
Rusty chain...


CLR...


After...


Excessively long wiring between the battery and the controller...


A good 3 feet removed...


Breaker relocated...


Access hole...


False bottom made for under-seat storage...


And, just for the heck of it, smoked out front signal covers...


That makes up what I got up to last week.
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Old 06-04-2018, 11:28 AM   #65 (permalink)
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Join Date: Sep 2012
Location: Victoria, BC
Posts: 1,224

Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)

Little Boy Blue - '05 Toyota Echo
90 day: 33.35 mpg (US)

BlueZ - '19 Nissan 370Z Sport
90 day: 17.19 mpg (US)
Thanks: 41
Thanked 345 Times in 259 Posts
Today...since I can't leave well enough alone...

12 mosfets in controller. Good stuff. 63V rather small capacitors, not so grand, but not really an issue either. Thankfully, right there when you open it up, the shunt...


Add a couple of wires...


Run them out of the case, and add an insulated paperclip between 'em...


And you have a "shunt-mod" that you don't have to open the case and re-solder to adjust the resistance!

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e-bike, electric bike, electric scooter

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