Grantmac
10 kW
So it's not simply a question of scaling the holder?
Grantmac said:So it's not simply a question of scaling the holder?
agniusm said:
Thanks.Matador said:Must say that Agniusm's work look really solid !
Best solderless product i've see on the market.
I will eventually buy some when I can finally afford it (time will come)...
Agniusm are you an engineer ? I can't help but think you are looking how solid you know the specs of your designs...
Matador
No issues with that so far. If the battery spec are kept to suit application, it should not be a problem. When i did test them on high draw, the case softened and became rubber like but the bolts stayed tight. I think its cause of some distance from the cells. Also the bolts are stainless and it is bad conductor of heat.PaulD said:agniusm said:
Looks promising, and good to see someone doing some bench testing here!
If I may, I'd recommend designing those bolted connections in such a way that the 3D printed plastic isn't between the nut and the busbar. Creep may be a problem, and it might loosen up.
Interested to see how it does long term. Maybe a resistance test as assembled, then after a few days/weeks would be prudent.
Depending on what you need, i have couple 10S sets at 30% off. They are older iteration but work just as new. The new ones were updated with minor additions, like a notch to the lid for easier opening, chamfers etcMatador said:I will eventually buy some when I can finally afford it (time will come)...
Matador
john61ct said:Is that like a subset of BMS functionality?
Link?
Its not a bms, pcm, at least by my standards. I got that one cause its boxed and waterproof. I am making modules to accommodate these. I have an account on thingiverse where i will put all the cads so one could make brakets for specific bm/pcm boards. There are per cell modules, but they are compatible with different type of bms. Elithion, emus, these are couple i know.john61ct said: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 per-cell module design you think is a good one?
Obviously, others can answer as well
You say "that one", and I keep asking, "what one"? Please, can you link to it?agniusm said:Its not a bms, pcm, at least by my standards. I got that one cause its boxed and waterproof
Yes. They have communication to master unit. HVC is happening when its charging so master unit would switch off the charger then bleed high cells. All parameters are preset on master unit.john61ct said:You say "that one", and I keep asking, "what one"? Please, can you link to it?agniusm said:Its not a bms, pcm, at least by my standards. I got that one cause its boxed and waterproof
> These boards do not protect the cells. They have 2-3 wire communication with master unit and drain resistor, maybe led.
What not even HVC? only balance?
So link to the "master" as well?
999zip999 said:That's what I need! ! But which frame will it fit ? That's always my problem. Size shape. Aginusm what size is that shape. ?
agniusm said:PCM:
http://www.bestechpower.com/pcmbmspcbforli-ionli-polymerbatterypacks/
Even these chinese categize them as pcm or bms!
https://daly.aliexpress.com/store/4165007
flippy said:the bestech ones also fall under the cheap chinese qualification. they also use fake mosfets and shitty thin pcb's.
dequinox said: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 bulk on your site. Maybe a pack of 24 8p tabs would be good for those of us making a 54v pack?