Search found 2343 matches

by agniusm
May 28 2019 1:30am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

BTW, what with the odd and even cell balancing? Does it do all cells eventually by balancing odd then even cells?
When it balances, to what voltage it does that? To lowest cell if its constant balancing?
Would it be better so set it to balance when on charger, off charger or both?
by agniusm
May 27 2019 1:09pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

What would be advisable settings for 42V pack? Its 14AH. this is what i have atm:
Untitled.png
by agniusm
May 27 2019 11:31am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

Ok. Giving another shot. Have 2 batteries, 20S and 10S. Questions if i mey: How do you hook up 10S battery to 15S bms? Just skip all the remaining connections ? Can someone link me to a page with correct settings for these units? I stopped at page 15, too much for me :) I will have relay connected ...
by agniusm
May 27 2019 11:04am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

flippy wrote:
May 27 2019 9:36am
Unless its programmable you cant. It will constantly be in fault mode.
I have the same unit talked about in this thread. With bluetooth etc etc.
So yes, programmable.
by agniusm
May 27 2019 8:49am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

Ok. Giving another shot. Have 2 batteries, 20S and 10S. Questions if i mey: How do you hook up 10S battery to 15S bms? Just skip all the remaining connections ? Can someone link me to a page with correct settings for these units? I stopped at page 15, too much for me :) I will have relay connected o...
by agniusm
May 26 2019 7:12am
Forum: Battery Technology
Topic: Solderless weldless 36V and 74V batteries could do over 200A
Replies: 54
Views: 2578

Re: Solderless weldless 36V and 74V batteries could do over 200A

Can anyone check if i am alright with the battery. Its 20S7P vtc6 so 84V24AH. I have probably done 25km and its flat. I did go full speed most of the time which is around 70kmh with mixed terrain but nothing major
by agniusm
May 24 2019 8:21am
Forum: Items for Sale - New
Topic: N.E.S.E. the no solder module
Replies: 303
Views: 35037

Re: N.E.S.E. the no solder module

999zip999 wrote:
May 24 2019 6:54am
Strong Product. You are as good as E.S. gets thank you . As home grown .Thatta boy.
Thanks, but there are far greater people here than me ;)
by agniusm
May 24 2019 6:07am
Forum: Items for Sale - New
Topic: N.E.S.E. the no solder module
Replies: 303
Views: 35037

Re: N.E.S.E. the no solder module

Insulation pads are now added to the shop
by agniusm
May 22 2019 3:15am
Forum: E-Bike Technical
Topic: Longtail cargo bike project
Replies: 32
Views: 3693

Re: Longtail cargo bike project

Revived my project as family needs transportation for summer, going to lakes etc. This has removable box deck so i can mount what i want. Had no time to finish cadilac style big one so made smaller one just for time being. It runs vented x5303 with kls-7230s. I have a lot of parts 3d printed. Its a ...
by agniusm
May 21 2019 8:01am
Forum: Items for Sale - New
Topic: N.E.S.E. the no solder module
Replies: 303
Views: 35037

Re: N.E.S.E. the no solder module

All files have been updated and uploaded to thingiverse: https://www.thingiverse.com/1865o/designs
Now includes separated module component files
by agniusm
May 18 2019 3:38pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

Not using this bms but here is my mounting of bt module:

Image
by agniusm
May 17 2019 12:40pm
Forum: Battery Technology
Topic: Solderless weldless 36V and 74V batteries could do over 200A
Replies: 54
Views: 2578

Re: Solderless weldless 36V battery could do 200A

I'm really digging this design, and i can print my own cases thanks to your guide, but getting the metal tabs is the challenge. Are you able to sell just the 8p tabs in bulk? I can get the hardware (nuts, screws, etc) here in the USA, so i won't need the entire hardware kit. I didn't see tabs in bu...
by agniusm
May 17 2019 1:35am
Forum: Battery Technology
Topic: Solderless weldless 36V and 74V batteries could do over 200A
Replies: 54
Views: 2578

Re: Solderless weldless 36V battery could do 200A

999zip999 wrote:
May 16 2019 6:02pm
That's what I need! ! But which frame will it fit ? That's always my problem. Size shape. Aginusm what size is that shape. ?
371x88x152mm 1.5kwh
by agniusm
May 17 2019 1:32am
Forum: Battery Technology
Topic: Solderless weldless 36V and 74V batteries could do over 200A
Replies: 54
Views: 2578

Re: Solderless weldless 36V battery could do 200A

Its not a bms, pcm, at least by my standards. I got that one cause its boxed and waterproof You say "that one", and I keep asking, "what one"? Please, can you link to it? > These boards do not protect the cells. They have 2-3 wire communication with master unit and drain resistor, maybe led. What n...
by agniusm
May 16 2019 1:23pm
Forum: Battery Technology
Topic: Solderless weldless 36V and 74V batteries could do over 200A
Replies: 54
Views: 2578

Re: Solderless weldless 36V battery could do 200A

Here is another battery. This one is 20S7P vtc6 inside. Wired with 25A pcm with separate port for charging.

Image

Image

Image

Image
by agniusm
May 16 2019 1:20pm
Forum: Battery Technology
Topic: Solderless weldless 36V and 74V batteries could do over 200A
Replies: 54
Views: 2578

Re: Solderless weldless 36V battery could do 200A

All I see in the Daly results are multi-port boards, what we usually call BMS. I assumed you meant the per-cell modules, where each protects one cell? Could you link to the specific one you ordered? Besides the current, what led you to choose it, as opposed to the others available? And is there a p...
by agniusm
May 16 2019 4:00am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

Whenever not cycling, bring to storage SoC and isolate the cells from everything, including BMS. In any case check on them at least every few weeks, more frequently at first, then scale back as you see what self discharge actually is. Just forgetting about them is not an option, maybe not as bad as...
by agniusm
May 15 2019 1:00am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

I have contactor which cuts off the battery and only bms stayed connected. Cells were from nkon.
I have checked all my modules. All at 0.02V :D
by agniusm
May 15 2019 12:42am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

It was 20S6P battery. I assumed all was good and left it for 3 months. It should not be the practice for the hardware to malfunction or bad design. You should not seitch off bms, its added complexity. You will forget to do it eventually. Further more there should be notes on such conditions but what...
by agniusm
May 14 2019 11:36pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

If its an unfixable issue, they go to the bin or at least to last drawer for the time being. Its unacceptable.
by agniusm
May 14 2019 11:21pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 1095
Views: 88870

Re: bluetooth BMS?

I have installed this BMS last year. Over the winter i left my battery unattended and this BMS drained it flat. Had brand new cells that went to the bin. Had no chance to go through all the posts but is this known issue? I have 2 of them, 15S and 20S. Balancing and charging was ok but parasitic drai...
by agniusm
May 14 2019 10:54pm
Forum: Battery Technology
Topic: A123 Pouch Cell Failure?
Replies: 17
Views: 662

Re: A123 Pouch Cell Failure?

I have 2 cells from those days. Shoot me pm and i can probably ship it cheap. my tabs are cut short (8-9mm) and was intended for my kit back in the day
by agniusm
May 14 2019 2:10pm
Forum: Battery Technology
Topic: Solderless weldless 36V and 74V batteries could do over 200A
Replies: 54
Views: 2578

Re: Solderless weldless 36V battery could do 200A

I tend to agree to disagree :lol: The good thing about PCM's is that its blunt as a boot so not too much that could go wrong with the hardware. I had one running for 7 years balancing and charging cells. I have destroyed that pack on vacation when my 43.8V charger died and i took 54V with me and my ...
by agniusm
May 14 2019 10:44am
Forum: Battery Technology
Topic: Is PCM good enough to replace BMS?
Replies: 13
Views: 1416

Re: Is PCM good enough to replace BMS?

I am sorry that I might have some misunderstandings on PCM. From the internet, I found that some PCM can have balancing function in addition to over charge and over discharge protection. Then what is the difference between PCM AND BMS? Could someone please tell me? This my own explanation so dont t...
by agniusm
May 14 2019 10:22am
Forum: Battery Technology
Topic: Solderless weldless 36V and 74V batteries could do over 200A
Replies: 54
Views: 2578

Re: Solderless weldless 36V battery could do 200A

Is that like a subset of BMS functionality? Link? According to the crowd, its bms but majority of the stuff people use is pcm, protection circuit module. It does balancing at hard preset value, does over current, under discharge and suposedly overcharge. Some does single or 2 point temp protection....