Search found 2041 matches

by parabellum
Jul 11 2018 3:48pm
Forum: Battery Technology
Topic: Lightweight lithium battery for car
Replies: 16
Views: 821

Re: Lightweight lithium battery for car

Turns out most of what I thought was charge current was actually being routed to other systems thru the power block on the + terminal. The problem will be if you have almost discharged battery for some reason. After start, generator will try to push in all Amps it can generate. You can end up with ...
by parabellum
Jul 10 2018 4:52pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Suzuki GSX-R e899 K2
Replies: 299
Views: 29202

Re: Suzuki GSX-R e899 K2

Looks like some defective winding job in the burned section, some short maybe. Usually, the winding gets charred evenly all around and then just bursts in place where charred insulation fails first. 1. Feedback sensor: Which sensor type will be the better one for the high current and therefore force...
by parabellum
Jul 08 2018 10:55pm
Forum: Items for Sale - Used
Topic: Panosonic 25ah Prismatic cells for sale $28
Replies: 69
Views: 4037

Re: Panosonic 25ah Prismatic cells for sale $22

That looks really cool. Nice CNC.
Why are you using aluminium for connectors?
My first thought was copper, I used it finally as well with some contact grease on (aluminium will need some oxide breaking compound to).
by parabellum
Jul 07 2018 12:18am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Suzuki GSX-R e899 K2
Replies: 299
Views: 29202

Re: Suzuki GSX-R e899 K2

What is the problem to open the motor? Normally you pry open one side cover (hammer and chisel) , which is glued on normally, as usual, then push out stator, if needed, with some tool or just jumping on the tire with axle on the floor. Please submit some pictures, you are facing a problem that was r...
by parabellum
Jul 04 2018 8:30am
Forum: Items for Sale - Used
Topic: Tesla Cells for sale as wrapped or welded packs
Replies: 48
Views: 4316

Re: Tesla Cells for sale as wrapped or welded packs

Nice holders.
What is the thin, transparent base, underneath your print?
by parabellum
Jul 03 2018 4:03pm
Forum: E-Vehicles General Discussion
Topic: Elon Musk's - Hyperloop
Replies: 131
Views: 15315

Re: Elon Musk's - Hyperloop

Chernobyl At least this 1 was a human error, more inclined to sabotage. They did programmed runaway stress test with all security protocols shut down, but moved the test schedule and it fell on other shift, where unfortunately was no trained to deal with personal. The security system was designed t...
by parabellum
Jul 03 2018 11:46am
Forum: EV Business World
Topic: Tesla Model 3
Replies: 630
Views: 38687

Re: Tesla Model 3

Once, in 2008 I woke up in the morning because of people running and screaming on our condo parking lot, my neighbours car was on fire. I was able to get in to my car and drive it away with minor bubbling starting on the paint-gob but we could not extinguish the fire on burning car whatever we did, ...
by parabellum
Jul 03 2018 8:28am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

If you are conncected the button is at the bottom right. I know what you mean (I have seen screen shots with RUN button https://play.google.com/store/apps/details?id=com.vortecks.vbms&hl=en_US, there is also 4th screen mode I can not find), but I still have PARAM2 button there(like this http://i105...
by parabellum
Jul 02 2018 11:07pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

flippy wrote:
Jul 02 2018 3:48pm
here is mine:
Thanks, but it looks exactly the same I have, there is no RUN button or I am to dumb to find it. :?
by parabellum
Jul 01 2018 9:09pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

i will post my version of VBMS during the weekend. Please, I still have hope. I printed enclosure for the screen but there is no way to get it on and still use buttons. A cell holder will work, it is optional and there is front access. P.S. If anyone wants the box with buttons for the screen module...
by parabellum
Jun 29 2018 1:44pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

I think you are asking about these 24 and 32S smart BMS and the LCD....which is the only real dashboard. The LCD is nice, I have 2 now and the info on first screen is about all I need but unfortunately I did not find any space to mount it, with access to the buttons. VBMS can do that, hit "run" aft...
by parabellum
Jun 29 2018 8:19am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

Is there any APK or mode in existing one to have nice dash on the phone screen? Something similar to 1st BMS screen, just with basics like TotalV, Ah, lowest cell, highest cell, maybe speed. My APK has 3 screens that are useless for anything but programming and deep analysis. 1 is log screen with so...
by parabellum
Jun 28 2018 10:58pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

Dui, ni shuo de dui wrote:
Jun 28 2018 9:11pm
Or even better: post the english apk file! (for the BMS-Ant please :))
I tried other apk, similar but other maker and they did not connect to my BMS,s. So, there is a chance this one not going to work with yours.
by parabellum
Jun 28 2018 11:47am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Suzuki GSX-R e899 K2
Replies: 299
Views: 29202

Re: Suzuki GSX-R e899 K2

The weak spot is the insulation on the wires, inside the confined axle channel. To toast the winding you usually need to heat up the whole stator over the insulation enamel rating, somewhere north of 120C. You would feel the heat radiation of the stator in your faces skin just looking at it in this ...
by parabellum
Jun 28 2018 10:04am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Suzuki GSX-R e899 K2
Replies: 299
Views: 29202

Re: Suzuki GSX-R e899 K2

Rovii wrote:
Jun 28 2018 4:51am
A short video showing smoke is coming out of the motor:
Looks like toast phase wires from the video. Did you upgrade them before pushing that far?
by parabellum
Jun 28 2018 9:23am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

What is different on your BMS? Do you have a link? There is one sink (actually just an aluminum plate) on each side of the BMS. One is for the balance board, the other for the FETs. So two sinks in total. It looks like one you linked, the pictures are of a 24S BMS at least, but yours is 32S and mus...
by parabellum
Jun 28 2018 2:17am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

ElectricGod wrote:
Jun 25 2018 10:23am
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.
Did you asked them for any kind of main disconnect board, or alternative BT programming APP?
by parabellum
Jun 28 2018 2:00am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

I'm using the 300A version, 32S. Thanks for your info. Your BMS is very similar but not same, theoreticaly you should have worse fets if going linear on V ratings but they could potentially be better fets if they are some original reputable make. Do you have access to fet sink? (the balance sink is...
by parabellum
Jun 27 2018 11:09pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 635
Views: 142107

Re: Electric Surf Board

What about these Flier ESCs? This one seems crazy to me http://www.fliermodel.com/en/prc-show.asp?id=684 22S and 800A are still 31kW if we divide the specs in half Or this one https://www.ebay.es/itm/400A-Boat-ESC-W ... SwzJhZ0Rgt Is still 11kW with the same specs halved I think, Luke tried 22s 400...
by parabellum
Jun 27 2018 10:47pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

Dui, ni shuo de dui wrote:
Jun 27 2018 9:14pm
The only time where I see the BMS heating is at the end of the charge, I guess that is whenever its doing the balancing.
Do you know what mosfet's are used in your BMS? Link to the BMS?
by parabellum
Jun 27 2018 8:53am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

I did connect a battery to BMS yesterday and balanced a 24s battery, which happened to have 1 cell low or at least BMS thinks so. My observation: If more then 13 cells are draining, BMS gets to 60C and switches a bunch of lower cells off to cool, at 45C it resumes on those cells. At ~12-13 cells dra...
by parabellum
Jun 26 2018 11:35am
Forum: Battery Technology
Topic: Parallel BMS for 4 x 12v start battery in Parallel
Replies: 25
Views: 572

Re: Parallel BMS for 4 x 12v start battery in Parallel

Thank you so much..... as thought..... I'll Parallel and use the other product for the separate bleed circuit! Perfect! Thank you! :) Just for clarification and deeper understanding of the problem. You see the chronology of events of 1 BMS is like following. 1)BMS measures individual cell voltages,...
by parabellum
Jun 26 2018 8:43am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

i am still pretty uncomfortable running 200+ amps tru that BMS. i got the 300A 32S version but those currents makes me a bit "yikes". preventive upgrading to better mosfets something i should consider? i dont care about heat as the controller and bms is cooled by a fan and the battery is way overki...
by parabellum
Jun 26 2018 12:15am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46605

Re: bluetooth BMS?

Hey what is the balance current while balance charge ? app work fine ? Luk Default setting is at 200mA. App works stable, but I only used it for settings, there is a bug in changing values in portrait mode, you must turn to landscape to be able to write. It was frustrating for 5 min before I figure...
by parabellum
Jun 23 2018 2:19pm
Forum: Battery Technology
Topic: Parallel BMS for 4 x 12v start battery in Parallel
Replies: 25
Views: 572

Re: Parallel BMS for 4 x 12v start battery in Parallel

In normal conditions, yes, any balancing circuit will. Those A123 are beasts and do not go out of balance easily anyway. But in your case, there are 2 scenarios: 1)Your GEN is holding charge at <V than needed to hold balancer triggered continuously or you can make that happen in some way (diodes etc...