Search found 1381 matches

by Voltron
Apr 17, 2018 11:55 am
Forum: Battery Technology
Topic: 12v lithium battery type (with photos)
Replies: 6
Views: 139

Re: 12v lithium battery type (with photos)

Maybe... I've seen some BMSs where the charge and output wires went to the same spots on the board, and it didn't matter. But on others they go to different spots, and could either work fine, or bypass the BMS so the cells aren't balancing, or maybe damage the BMS, with no real way to tell ahead of ...
by Voltron
Apr 06, 2018 11:18 am
Forum: E-Bike General Discussion
Topic: Aluminum vs Steel vs Carbon E-bike Frames
Replies: 50
Views: 2684

Re: Aluminum vs Steel vs Carbon E-bike Frames

From an article on BMW's new low cost carbon techniques for moto frames...
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by Voltron
Apr 05, 2018 12:49 pm
Forum: Electric Watercraft
Topic: ebike hub motor for marine propulsion
Replies: 15
Views: 2111

Re: ebike hub motor for marine propulsion

I was thinking something more like this... With the blades around the edge. That's the props on PlanetSolar...
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by Voltron
Mar 31, 2018 12:34 pm
Forum: Battery Technology
Topic: battery parallel / serial switch
Replies: 5
Views: 195

Re: battery parallel / serial switch

Are you planning on carrying both batteries all the time? If you are, there really isn't much difference between running 72v at lower throttle and 36v. It's the same amount of electricity in the pack either way...

I run double packs usually, but always at 72v...
by Voltron
Mar 27, 2018 6:35 am
Forum: Battery Technology
Topic: BOSCH Powerpack battery
Replies: 18
Views: 4008

Re: BOSCH Powerpack battery

Here's one opened up... I forced this one and broke a couple of the tabs, but it still snaps back together. If you made a special tool to slide it there maybe you could jimmy it open more carefully. packopen.jpg The BMS on this one died from water intrusion that got thru the coating and corroded one...
by Voltron
Mar 23, 2018 11:57 am
Forum: General Discussion
Topic: Lying Car Companies
Replies: 45
Views: 849

Re: Lying Car Companies

Technically coal is a plant based fuel... its just prehistoric plants. It's still an ecological nightmare when you burns lots of it of course...
by Voltron
Mar 23, 2018 11:55 am
Forum: E-Bike Technical
Topic: Easiest power loss fix ever... 3spd switch
Replies: 25
Views: 827

Re: Easiest power loss fix ever... 3spd switch

LOL , I was hoping that trying to help you didn't get lost in the shuffle...
by Voltron
Mar 21, 2018 7:37 pm
Forum: General Discussion
Topic: Lying Car Companies
Replies: 45
Views: 849

Re: Lying Car Companies

No matter what ones political leanings, if somebody hadn't uncovered the truth, all we would be hearing would be lies from unaccountable corporate executives, while millions suffer around the world from those lies. And personally, I think controlling ones own consumption and breeding desires is the ...
by Voltron
Mar 21, 2018 6:51 pm
Forum: General Discussion
Topic: Lying Car Companies
Replies: 45
Views: 849

Re: Lying Car Companies

Hope this doesn't offend of course, but as an American I hope a few more of us wake up from our naps, get our truck nuts out of the way, and do something about leaving some free fresh air for the next generation... And when you're out there making those American decisions like what car to buy, don't...
by Voltron
Mar 21, 2018 2:21 pm
Forum: General Discussion
Topic: Lying Car Companies
Replies: 45
Views: 849

Re: Lying Car Companies

Flu like symptoms are usually described for both.. headache, nausea, dizziness and rapid breathing are usual signs. One big difference is carbon monoxide is deadlier in that it binds tightly to red blood cells, so even after moving to fresh air sometimes it still takes too long for it to clear out o...
by Voltron
Mar 21, 2018 2:12 pm
Forum: General Discussion
Topic: Lying Car Companies
Replies: 45
Views: 849

Re: Lying Car Companies

" CO2 can indeed poison you, but its problem comes not from its toxicity (because of our evolving to deal with that) but due to is effect on climate." Say what? Are you saying the humans are evolving to deal with higher CO2 levels? Or that at some point in human evolution CO2 was even less breathabl...
by Voltron
Mar 21, 2018 1:34 pm
Forum: General Discussion
Topic: Lying Car Companies
Replies: 45
Views: 849

Re: Lying Car Companies

If you believe the fines deter that sort of behavior you're not paying attention to their real life profits from the lying. And their whole industry has tried to claim it can police itself about that sort of thing despite repeated proof to the contrary. They sure didn't voluntarily make cars cleaner...
by Voltron
Mar 21, 2018 12:56 pm
Forum: General Discussion
Topic: Lying Car Companies
Replies: 45
Views: 849

Re: Lying Car Companies

Thats a silly example, as you can make an ebike or car where the electric current is safely contained during operation... but you cannot build an internal combustion engine that safely contains its emissions, and no matter what smog reducing catalyst technology you have, on the most modern engine, b...
by Voltron
Mar 21, 2018 12:38 pm
Forum: General Discussion
Topic: Lying Car Companies
Replies: 45
Views: 849

Re: Lying Car Companies

The model is a little too Eastern European villainess for me.. but that bike is damn pretty. Aero with the battery up high so it doesn't make the handling sluggish...mmmm. blackike2 (800x485).jpg Sure looks like they just ziptied the chain on for the pic... but still eyecatching. The headlamp is rem...
by Voltron
Mar 21, 2018 12:23 pm
Forum: Motor Technology
Topic: End turns bad?
Replies: 246
Views: 5420

Re: End turns bad?

I guess I was thinking as solenoid as a distinct group from other electromechanical devices, like a relay where the coil isn't hollow.... as in the definition below. "Electromechanical solenoids consist of an electromagnetically inductive coil, wound around a movable steel or iron slug (termed the a...
by Voltron
Mar 21, 2018 11:27 am
Forum: Motor Technology
Topic: End turns bad?
Replies: 246
Views: 5420

Re: End turns bad?

Been trying to follow along with this one, and one thing keeps jumping out at me in that I don't see how the windings around the teeth are like solenoids. "Their only saving grace is that the concentrating affect of the iron cores in the solenoids, transfers the field created by the coils (end-turns...
by Voltron
Mar 21, 2018 11:01 am
Forum: General Discussion
Topic: Lying Car Companies
Replies: 45
Views: 849

Re: Lying Car Companies

It's way past reckless disregard. I'm not speaking in a strictly legal sense, but a human moral one. Just like with cigarettes, maybe you didn't set out to design a deadly product, and your deadly product doesn't kill everybody who uses it, just a good portion of them. You get solid scientific evide...
by Voltron
Mar 21, 2018 6:23 am
Forum: General Discussion
Topic: Lying Car Companies
Replies: 45
Views: 849

Re: Lying Car Companies

Yes they do want to poison people... And for money! Volkswagen is one glaring example... Installing cheater software in the cars to bypass diesel regulations has definitely lead to increased deaths, just to they could wring out more profits while they're figuring out electric cars. Chevy not fixing ...
by Voltron
Mar 19, 2018 4:00 pm
Forum: E-Bike Technical
Topic: Ebike battery 36V - charging current
Replies: 5
Views: 139

Re: Ebike battery 36V - charging current

Then it becomes a matter of how big the battery is, and how fast you need it charged, which also becomes a matter of how cold it is when charging, as low freezing type temps for a battery need slower charging... But the current isn't as important as the voltage unless it's a tiny battery.
by Voltron
Mar 19, 2018 1:02 pm
Forum: E-Bike Technical
Topic: Ebike battery 36V - charging current
Replies: 5
Views: 139

Re: Ebike battery 36V - charging current

A so called 36 volt battery actually charges to 42 volts. (i'm assuming you meant the voltage not the current?)
by Voltron
Mar 19, 2018 12:55 pm
Forum: E-Bike Technical
Topic: Run 48v bike on 36v
Replies: 14
Views: 341

Re: Run 48v bike on 36v

It depends on the controller. Sometimes it will work, but other times it will think the battery is too low and cut out. Its safer than the other way, running 48v on a 36v, as that can lead to the battery getting drained too far sometimes.
by Voltron
Mar 19, 2018 11:17 am
Forum: E-Bike Technical
Topic: hub motor running jerky and going backwards and forwards
Replies: 4
Views: 173

Re: hub motor running jerky and going backwards and forwards

I would fix the phase wire first, as it's really easy, and my bike started doing a bit of shuddering before I noticed the Anderson's had deformed just enough over time from slow overheating to be making bad contact, so it might fix things without ripping things apart too much.
..
by Voltron
Mar 17, 2018 2:28 pm
Forum: E-Bike Technical
Topic: Easiest power loss fix ever... 3spd switch
Replies: 25
Views: 827

Re: Easiest power loss fix ever... 3spd switch

You do recognize you keep beating the drum on a question that wasn't asked right?
by Voltron
Mar 17, 2018 4:50 am
Forum: E-Bike General Discussion
Topic: RCA charger connector snapped and stuck in battery charger connector
Replies: 11
Views: 358

Re: RCA charger connector snapped and stuck in battery charger connector

Can you re-separate the plugs temporarily and line one up behind the other to get the heat shrink on?
by Voltron
Mar 17, 2018 4:35 am
Forum: E-Bike Technical
Topic: Easiest power loss fix ever... 3spd switch
Replies: 25
Views: 827

Re: Easiest power loss fix ever... 3spd switch

That sure doesn't look like an off the shelf 3 speed switch, and no matter how many times you blather on about your cool idea, that's not what the question was...
Great topic for another thread tho... Even though there's a bunch of them already, I'm sure you have something to add...