Search found 603 matches

by Inwo
Sep 30 2019 8:46am
Forum: Motor Technology
Topic: Over speed Pmac motor (also a.c. induction)
Replies: 5
Views: 210

Re: Over speed Pmac motor (also a.c. induction)

From electricgod post: https://endless-sphere.com/forums/viewtopic.php?f=35&t=99008&p=1457214&hilit=pmac+3031#p1457214 And then BIG...a Motenergy 3031-001 axial flux 80kw motor next to the AP 12090. It has two 180mm wide and 76mm tall stators. It makes a motor 2X more powerful than the C80100 look t...
by Inwo
Sep 30 2019 8:37am
Forum: Motor Technology
Topic: Over speed Pmac motor (also a.c. induction)
Replies: 5
Views: 210

Re: Over speed Pmac motor (also a.c. induction)

Motor will run 7000rpm. Runs hot at any speed. It runs extremely hot over 4000. Have had 3 companies, 4 actually counting motenergy, try to get this motor running properly. We have it 80% there except for overheating. I would give a motor to someone who can help. It is a dana/spicer type, 19spline ,...
by Inwo
Sep 24 2019 12:44am
Forum: Motor Technology
Topic: Over speed Pmac motor (also a.c. induction)
Replies: 5
Views: 210

Re: Over speed Pmac motor (also a.c. induction)

Let's try it this way.

Will raising the voltage of an a.c. induction traction motor raise the speed of best efficiency.
I need to get a me3031 running cool at over 5000rpm or change gear ratio
by Inwo
Sep 21 2019 11:24pm
Forum: Motor Technology
Topic: Over speed Pmac motor (also a.c. induction)
Replies: 5
Views: 210

Re: Over speed Pmac motor (also a.c. induction)

Also testing induction motors. 5kw running oem 48v and 7000rpm max.
I would like to squeeze another 20% rpm out of it.
Do I have a better shot pushing the a.c. motor to 8000rpm, than the Pmac running cool at 7000? (and not grenading)
by Inwo
Sep 21 2019 11:18pm
Forum: Motor Technology
Topic: Over speed Pmac motor (also a.c. induction)
Replies: 5
Views: 210

Over speed Pmac motor (also a.c. induction)

I have a motenergy 3031 Pmac. Rated at 5,000 rpm max. Is one of the limiting factors heat? Or can it be programmed to run cooler, at reduced power. Motor is over double hp needed. A buddy has run it 7000rpm and it survived. The only issue is 100C after a few fast miles. I've been told that the heat ...
by Inwo
Jul 31 2019 8:51pm
Forum: General Discussion
Topic: Active energy transfer balancing
Replies: 14
Views: 854

Re: Active energy transfer balancing

Yes, they work 24-7. Anytime there is over 30mv difference. Unless you turn it off.
by Inwo
Jul 16 2019 10:38pm
Forum: Items for Sale - New
Topic: 2.35v 11ah nos boxes of 12 cells
Replies: 24
Views: 3623

Re: 48v 11ah nos boxes of 12 cells

Another pallet available in Iowa.
Pm for his phone number. He has no online presence.
I didn't ask, but he may ship in multiples of 100 pcs.
New in box old stock.
by Inwo
Jul 16 2019 2:39pm
Forum: Battery Technology
Topic: Ultra Cheap 66160 30Ah LTO - Or Scam?
Replies: 42
Views: 7496

Re: Ultra Cheap 66160 30Ah LTO - Or Scam?

lto scam.gif
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by Inwo
Jun 21 2019 10:44pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1131
Views: 98419

Re: bluetooth BMS?

Let me try again. That screen shot is from my 12s testing. Screenshot_20190619-201540.jpg This is 40s before I leaned to set voltage limits. Red is over volts, green is under volts. Notice by putting 5s on each board, each 10s module is displayed on 2 even lines. Boards don't care, any number of cel...
by Inwo
Jun 21 2019 10:36pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1131
Views: 98419

Re: 7S daisy chained smart "112S max" BMS

Back in May I got 5 of these BMS/balancers and an LCD. Over this past weekend I finally got time to set them up. The 4 pin JST connectors are labeled COM1 and COM2. They are the communications interconnects between each board and how you program via a USB adapter too. The right hand 7 pin connector...
by Inwo
Jun 11 2019 10:57pm
Forum: General Discussion
Topic: Active energy transfer balancing
Replies: 14
Views: 854

Re: Active energy transfer balancing

Yes, as they are energy transfer only, they are not chemistry dependant. Works with lto up to 4.2v cells or supercaps. Many versions available, such as 8s and 12s. All work with fewer cells and can be overlapped for more. I'm building a harness for 36s. 3 volt modules in series connected 4p. Using 2...
by Inwo
Jun 11 2019 11:36am
Forum: General Discussion
Topic: Active energy transfer balancing
Replies: 14
Views: 854

Active energy transfer balancing

There are many new active balance boards showing up from China. I have tested most of them, if anyone needs an opinion before ordering. It was requested that I do a more thorough test of the potted 4s board by a boat owner using 4s 60ah LiFePo4 for starting battery. Getting to the end of test. I won...
by Inwo
May 15 2019 1:01pm
Forum: Items for Sale - New
Topic: Elite-Power-Systems can bms
Replies: 0
Views: 209

Elite-Power-Systems can bms

LiFePo4 Bms
"shunt"
4-cell daisy chain
$150
Extra cell boards $10 (4-6cells) (3 types available)

10pcs $1,000
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https://paypal.me/INWO?locale.x=en_US
by Inwo
May 15 2019 12:44pm
Forum: Items for Sale - New
Topic: New BMS 1-24s FLX24CBMS
Replies: 0
Views: 232

New BMS 1-24s FLX24CBMS

Unknown operation sold for box/parts.
Aluminum case.
10 lot $100 CONUS

https://paypal.me/INWO?locale.x=en_US

Sample $25
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by Inwo
Mar 31 2019 10:48pm
Forum: Items for Sale - New
Topic: New Chargery 1500 24s charger
Replies: 64
Views: 6962

Re: New Chargery 1500 24s charger

The C10325 is a great charger and works fine stand alone. I liked the feature set, though menu implementation and the connector were kind of annoying. However, fried it this morning - I was running it in power supply mode charging 14s Leaf pack at 10A, and when BMS disconnected the charger due to p...
by Inwo
Mar 12 2019 10:23am
Forum: Items for Sale - New
Topic: New Chargery 1500 24s charger
Replies: 64
Views: 6962

Re: New Chargery 1500 24s charger

I still sell a few, but there are other dealers now. The C10325 is a great charger and works fine stand alone. The C4012 is not a "bad" charger either, but it suffers from the same limitations as other balance chargers. Balance current is around an amp, so it must cut charger current way back when a...
by Inwo
Mar 11 2019 9:10pm
Forum: Items for Sale - New
Topic: New Chargery 1500 24s charger
Replies: 64
Views: 6962

Re: New Chargery 1500 24s charger

Keep in mind bms-16 does not balance.
New bms-16t does.
Also have bms-8t now. Now with com. port.
by Inwo
Feb 28 2019 3:53pm
Forum: Items for Sale - Used
Topic: Scib lto 10s 20ah batteries.
Replies: 0
Views: 374

Scib lto 10s 20ah batteries.

I have a few lightly used recent manufacture date Toshiba LTO batteries. $200 with 25a bms. Example shown with 80a bms and anderson connectors from a ES seller. The included bms and connectors are different, But this one for sale +$50 I already have the $15 bms's that I was going to use in my projec...
by Inwo
Jan 07 2019 1:48pm
Forum: Items for Sale - Used
Topic: Junk 60ah LiFePo4 Free in Mn.
Replies: 0
Views: 323

Junk 60ah LiFePo4 Free in Mn.

I have 50-100 bad cells that someone may find a use for. Battery cases etc.
Worth a shot!
All have high IR.

60ah international battery.jpg
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by Inwo
Dec 03 2018 3:48pm
Forum: General Discussion
Topic: Led tester/ 27v continuity/ 30ma source
Replies: 0
Views: 576

Led tester/ 27v continuity/ 30ma source

I built similar with a switch to change profiles in DeltaQ chargers. It has become so useful that I made one without the switch. Testing leds was a two person job. One to push the switch. A kid is stopping in today or tomorrow to learn how to fix led tvs. Made it for him, but it’s to nice. Let him m...
by Inwo
Oct 26 2018 6:28pm
Forum: Items for Sale - New
Topic: LTO Lithium Titanium Oxide (Titanate) Battery 30S (now 32S)- Seeking the Ultimate Commuter Battery
Replies: 1
Views: 404

LTO Lithium Titanium Oxide (Titanate) Battery 30S (now 32S)- Seeking the Ultimate Commuter Battery

There may soon be another 1000 cells available in USA. To settle a debt they are on the way to a buddy in Fl. Not mine, so I hope this helpful update is ok. If not delete it and I'll post it in a more aprop place. If someone needs spares, or starting a new project, pm me and I'll give you his info. ...
by Inwo
Oct 20 2018 3:38pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1131
Views: 98419

Re: bluetooth BMS?

Lost track of what all has been posted about the 15s bt bms. Today I finally had time to connect an lcd display. Mostly Chinese so it sucks, but if you want a simple cell monitor on a switch and no bt. it does work. MVC-012F.JPG Shown on 12s Volt. Arrows indicate H and L cells. Better than a poke in...
by Inwo
Oct 18 2018 1:32pm
Forum: Battery Technology
Topic: Salvaged EV cells index: Leaf, Volt, Tesla, Zero, etc
Replies: 59
Views: 16886

Re: Salvaged EV cells index: Leaf, Volt, Tesla, Zero, etc

Newer may be better. I could just squeeze a little over 60ah out of the ones I tested.
Which is fine, however the seller sold them as 75ah.
Oh, and they were new. Maybe needed cycling to come up. :?
by Inwo
Oct 16 2018 10:56am
Forum: Items for Sale - New
Topic: 2.35v 11ah nos boxes of 12 cells
Replies: 24
Views: 3623

Re: 48v 11ah nos boxes of 12 cells

1,000 11ah nib lto on a pallet in Iowa.
Getting them back to settle a $6,000 debt.
I would rather have them drop shipped to a new owner and not deal with it.
by Inwo
Oct 10 2018 5:50pm
Forum: Items for Sale - New
Topic: New Leaf Gen 3 41ah Cells (SOLD!)
Replies: 12
Views: 1393

Re: New Leaf Gen 3 41ah Cells (SOLD!)

41/82ah was optimistic.

I can only get 74ah 4.15 to 3 volts @ 10a rate.
By the way. I only got them for testing if someone has a use for them.