Search found 811 matches
- Jul 23 2017 7:09pm
- Forum: Items for Sale - Used
- Topic: FS: Meanwell 48V clones, HLG320H-
- Replies: 5
- Views: 1116
Re: FS: Meanwell 48V clones, HLG320H-
ALL sold?
- Jul 10 2016 5:59pm
- Forum: Battery Technology
- Topic: Help with my overcharged lifepo4 battery. Whats Next?
- Replies: 17
- Views: 1924
Re: Help with my overcharged lifepo4 battery. Whats Next?
I'm so sorry to hear about this loss for you--I can see it's a much bigger deal for you where you are than it would be for many of us. As others have pointed out, you might be able to get more use out of this pack, but the risks are much higher now than before this event because the cell interiors h...
- Apr 27 2016 12:12pm
- Forum: Large EV General Discussion
- Topic: Miles ZX40ST refurb project
- Replies: 73
- Views: 17547
Re: Miles ZX40ST refurb project
Thanks for the suggestions! The inverter, BTW, is a Semikron SKAI4001 with control electronics by Oztek. The Semikron uses IGBT's and is rated for 400 Volts, 400 Amps (or thereabouts). After looking MPaul's Leaf motor thread, I see that the actual motor proper is smaller than I thought, but still qu...
- Apr 26 2016 8:33pm
- Forum: Large EV General Discussion
- Topic: Miles ZX40ST refurb project
- Replies: 73
- Views: 17547
Re: Miles ZX40ST refurb project
Thanks for the words of encouragement guys, I really appreciate it. I had kind of a rough winter with family issues and have been battling a bit of depression. Feeling better lately with the weather improving and motorcycle season back underway :) I'm at a bit of a turning point with this truck. I r...
- Apr 08 2016 8:13pm
- Forum: Large EV General Discussion
- Topic: Worlds Worst production electric car 2016
- Replies: 8
- Views: 1723
Re: Worlds Worst production electric car 2016
...or three phases.Dauntless wrote:Maybe it's an electric that just FEELS like a 3 cylinder engine. Maybe there's 3 poles. . . .
- Apr 03 2016 2:19pm
- Forum: E-Scooter and Motorcycle Build Threads
- Topic: Zero S with Large Bike Sound
- Replies: 18
- Views: 4435
Re: Zero S with Large Bike Sound
Thinking more on this, I can see why you wouldn't just want to tone down your regular horn. You want that emergency horn to be as loud as possible for those times when you're about to be killed. I like amberwolf's idea of a bike bell or some other manual alarm that's on the quieter side for the tigh...
- Apr 03 2016 9:45am
- Forum: E-Scooter and Motorcycle Build Threads
- Topic: Zero S with Large Bike Sound
- Replies: 18
- Views: 4435
Re: Zero S with Large Bike Sound
When I worked at Harman, they were developing a system that did this for hybrids and EV's. No offense, but I thought is was the dumbest project the company had ever undertaken. I saw it as an assault on the EV--how better to take the shine off than to cancel out one of the technology's cardinal virt...
- Apr 03 2016 9:20am
- Forum: E-Scooter and Motorcycle Build Threads
- Topic: deleted
- Replies: 3
- Views: 2119
Re: FAST 40kW eGSX with hub motor
If you have not modded the frame, brakes, etc., what is the problem with getting it legally registered ?? I can't comment on the situation in QB, but when I described my motorcycle project to a German colleague, he stated it would cost me about $2,000 in fees to get that vehicle legalized for road ...
- Mar 27 2016 5:50pm
- Forum: E-Scooter and Motorcycle Build Threads
- Topic: Derbi senda 50cc electric conversion
- Replies: 32
- Views: 17396
Re: Derbi senda 50cc electric conversion
Beautiful build quality...puts all my stuff to shame, but that's not necessarily hard to do. Agree that SLA pretty much sucks for motive applications, especially something that looks like it could really fly nicely with a good Li ion pack. I use LFP (A123) in my stuff, but even cheap LFP should be a...
- Mar 26 2016 6:11pm
- Forum: E-Scooter and Motorcycle Build Threads
- Topic: 1984 Honda VF500F Interceptor conversion.
- Replies: 12
- Views: 6286
Re: 1984 Honda VF500F Interceptor conversion.
Been a while since I've made any updates to this thread, but several issues have popped up over the last many months that are now resolved. Firstly, I had begun to make too much of a habit of draining my battery pack completely. I don't recommend constantly trying to break your own distance records ...
- Mar 21 2016 10:29am
- Forum: Large EV General Discussion
- Topic: 45% efficient F1 ICE engine ?
- Replies: 46
- Views: 5167
Re: 45% efficient F1 ICE engine ?
The first time I saw this tech rolled out was a just a few years ago at the battery show which was sharing floorspace with the engine show. They were pitching this stuff at big rig trucks and were claiming a 6% increase in fuel economy. I too am suspicious of claimed double-digit improvement though ...
- Mar 12 2016 5:21pm
- Forum: Large EV General Discussion
- Topic: Miles ZX40ST refurb project
- Replies: 73
- Views: 17547
Re: Miles ZX40ST refurb project
Ok, it's been months now, time to get my head back in this. I have a couple of forklift guys I need to go visit to weigh my options. Considering using a 9 inch motor if the right opportunity presents itself. Unfortunately, I don't have much money on tap at the moment, so that doesn't help. We (Dad a...
- Jan 20 2016 11:32pm
- Forum: Battery Technology
- Topic: Genuine A123 AMP20 Module!
- Replies: 17
- Views: 3062
Re: Genuine A123 AMP20 Module!
@wb9k are the Spark packs the M1B formula? That is EXT, correct? The Spark packs use the Gen 1.5 Amp 20 cell. M1B, yes, EXT, no. They're not the same thing. There have been a lot of small flavor changes over the past two years...honestly I'm not totally up to speed on what got introduced when. The ...
- Jan 13 2016 7:07pm
- Forum: Battery Technology
- Topic: Damaged A123 Battery Cans
- Replies: 19
- Views: 2292
Re: Damaged A123 Battery Cans
Ugh...salty corrosion. You'll want to clean that off as best you can. I would treat these cells (as well as your other dinged up ones) as spares if you can. Any cans that have corrosion that extends into the trough of the safety vent should be discarded. If there's no corrosion in that trough (and y...
- Jan 13 2016 11:55am
- Forum: Battery Technology
- Topic: Damaged A123 Battery Cans
- Replies: 19
- Views: 2292
Re: Damaged A123 Battery Cans
Hi all. The pack these come from is air-cooled and does see very high C-rates at times, in both directions. It is possible to keep the weld straps and cut the whole into patterns that will work for you. This wouldn't work for the style holder you are going to, but you can often use heatshrink to mak...
- Jan 01 2016 10:11am
- Forum: Battery Technology
- Topic: Is this guy the expert he claims ?
- Replies: 29
- Views: 4229
Re: Is this guy the expert he claims ?
I remember when playing around with LiPo that charging it cold didn't charge at the same C rate on the Icharger ? I never used temp sensors to charge LiPo. This would likely fall into one of those "extreme cases" I mentioned where the DCR rise actually eats into the ability of the charger...
- Dec 31 2015 9:36pm
- Forum: Battery Technology
- Topic: Is this guy the expert he claims ?
- Replies: 29
- Views: 4229
Re: Is this guy the expert he claims ?
Most of the basic claims being made in this thread are true. Neither thermally-induced DCR change or BMS smarts alone explains all the observations made here, and they are valid observations. One does not cancel out the other or negate the fact that it exists. Yes, performance suffers with cold temp...
- Dec 29 2015 2:41pm
- Forum: Battery Technology
- Topic: Genuine A123 AMP20 Module!
- Replies: 17
- Views: 3062
Re: Genuine A123 AMP20 Module!
Find a wrecked Chevy Spark? That's what that's from. 28S3P. Actually, every cell IS fused (under the welded-on busbars, punched into the anode tab) and the module is fused too--look at the neckdown on the strap leading to the + terminal. Short the module out hard, that's what you'll blow. I don't re...
- Dec 28 2015 2:43pm
- Forum: Battery Technology
- Topic: ~120 year old Laclede battery running my desk clock
- Replies: 8
- Views: 1095
Re: ~120 year old Laclede battery running my desk clock
Fun! The Electrical Engineer trade journal from November 29, 1893 (pub. weekly in NYC) had a better illustration of the case and guts perhaps... (Found in Google Books here:) https://books.google.ca/books?id=nC1KAQAAMAAJ&pg=PA480&lpg=PA480&dq=Laclede+battery&source=bl&ots=_jAc53...
- Dec 28 2015 2:32pm
- Forum: Battery Technology
- Topic: ~120 year old Laclede battery running my desk clock
- Replies: 8
- Views: 1095
Re: ~120 year old Laclede battery running my desk clock
Awesome! If anyone wants to experiment with older battery types, the Edison "Nickel-Iron, NiFe" battery is safe and easy to fiddle with. The 1895 Ogden Bolton patent bike ran on 10V. Direct drive rear hubmotor, freewheel built into the motor, with the battery in the frame triangle....I mi...
- Dec 28 2015 2:21pm
- Forum: Battery Technology
- Topic: ~120 year old Laclede battery running my desk clock
- Replies: 8
- Views: 1095
Re: ~120 year old Laclede battery running my desk clock
Interesting :) Can the cell be reused/restored once discharged? Yes, the last line on the paper label says to refresh the cell you simply pour out the water mixture and make a new one. In this way, I guess you could call this a "slurry battery". I believe the zinc rod is eventually consum...
- Dec 27 2015 8:08pm
- Forum: Battery Technology
- Topic: ~120 year old Laclede battery running my desk clock
- Replies: 8
- Views: 1095
~120 year old Laclede battery running my desk clock
I picked up this cool old battery at an antique mall a year or so ago: http://i935.photobucket.com/albums/ad193/mollysplayhouse/Laclede%20cell/20151226_122534.jpg This link dates the item to the 1890's: http://reference.insulators.info/publications/view/?id=12185 The lid of the glass jar is a carbon...
- Oct 27 2015 1:38pm
- Forum: Large EV General Discussion
- Topic: My electric Triumph GT6
- Replies: 49
- Views: 10257
Re: My electric Triumph GT6
I don't think it was meant as criticism, just pointing out that you have the potential for an easy upgrade at some point in the future :) Great project by the way, doing something well is hard, but doing it well and on a tight budget is doubly so. Absolutely, not meant as a knock on anyone. This is...
- Oct 26 2015 8:16pm
- Forum: Large EV General Discussion
- Topic: 1,000lb "Elec-tow’d” Electric Tow’d Dune Buggy Build Thread
- Replies: 174
- Views: 61542
- Oct 26 2015 9:01am
- Forum: Large EV General Discussion
- Topic: My electric Triumph GT6
- Replies: 49
- Views: 10257
Re: My electric Triumph GT6
I didn't say they would cost the same....kiwiev wrote:wb9k wrote:Nice setup--deserves better cells!
What cells do you think would be better for similar $$$$?
Cheers Kiwi
