Save Thousands by Building your own Battery - Daly BMS

[@HamedAdefuwa]

i havent watched for a few years, good to see you pop up in my recommended

[@marcrodriguez2884]

Man - wish I would have stumbled upon this a few weeks ago. Just built a 48v pack using 280AH cells....this is so much cleaner than mine. May have to make another :-).

[@duncanstirling6643]

So cool I found this BMS in Thailand $13, thank you

[@francisdoll1253]

Nice and clean board,looks so professionnel!

[@nicmate2543]

Man, people building batteries for ages already…I tought i’m going back in time and i’m not wrong 😊

[@electromechanicalstuff2602]

Building a 70kwh bank right now with batter hookup envision 280 ah cells. I made my own end plates. I love yours but I had means to do it myself. I saved $10,000 compared to buying eg4 batteries

[@sobanidrees2999]

Cost of bank & which BMS used ??

[@electromechanicalstuff2602]

@@sobanidrees2999 84 envision 280ah grade A cells (4 extra) from battery hook up was $6,000. I used 5 Jibiada 100amp 200 ma passive balancing BMS I paid about $120 each I bought all thread and 1/4" aluminum plates for compression at about another $300 That's $6,900 To buy eg4 5 wall mount 14.7kwh packs at $3500 after tax+shipping? (Maybe free) Is $17,500+ possible shipping That's $10,100 saved

[@electromechanicalstuff2602]

@@sobanidrees2999 my bank is 84 cells (4 extra) of envision 280ah new grade A balanced and matched from battery hookup. That makes me, 5 banks of 280ah or 14.3kwh each 71kwh total. I paid $6,000 for them after tax with free shipping. Im using 5 jabidia 100amp bms. I paid about $120 each for those. I bought 1/4" aluminum plates and all thread for compression. Spent another $200 on that. Bought a shelf for another $200. Bought breakers for $200 All in for $7,200 or less. Eg4 wall mount 14.3kwh batteries are $3500 after tax not including shipping. Might be free shipping. For 5 cells that's $17,500 for the equivalent batteries. That's a savings of over $10,000

[@donnots8218]

Comments be getting deleted...

[@electromechanicalstuff2602]

@sobanidrees2999 my bank is 84 cells (4 extra) of envision 280ah new grade A balanced and matched from battery hookup. That makes me, 5 banks of 280ah or 14.3kwh each 71kwh total. I paid $6,000 for them after tax with free shipping. Im using 5 jabidia 100amp bms. I paid about $120 each for those. I bought 1/4" aluminum plates and all thread for compression. Spent another $200 on that. Bought a shelf for another $200. Bought breakers for $200 All in for $7,200 or less. Eg4 wall mount 14.3kwh batteries are $3500 after tax not including shipping. Might be free shipping. For 5 cells that's $17,500 for the equivalent batteries. That's a savings of over $10,000

[@jamesbailey4913]

We need to start doing these together in Australia Sirs…… Theres not that many of us in comparison; but theres a ridiculous amount of us with solar

[@showmequick2245]

Where have you been man. Good to see you again

[@ibrakibrahim7290]

Great work! Following you from Africa, Niger

[@Nova-m8d]

The PCB design looks great but it needs an automotive OEM style wiring harness because all those loose wires look like a hack job.

[@RTmadnesstoo]

I'm sure you can cut the excess wire off and clean it up.

[@Nova-m8d]

@@RTmadnesstoo So it would be a shorter version of the same mess.

[@RTmadnesstoo]

@@Nova-m8d You could easily wrap it in an 'automotive OEM style wiring harness' or put the whole thing in an enclosure if it really bothered you so much. It's not like you would have it in the middle of your living room or something. My first thought was an enclosure with a thermostat controlled fan but whatever.

[@jehugarcia]

More like a dozen different connectors since there’s about they many different bms that can be used and they all have different connectors

[@PhilipX2030]

​@@jehugarciahey Jehu! Been a little while.. have you considered a CAN bus standard for the wiring? (This could diminish the bundle significantly)

[@MichaelSchmelzer-d6h]

it looks very professional with the press plates and the pcb. Do you have a drawing from the plates and a step file for the PCB Board

[@quartamile]

Looks great. No mention of temperature sensors, are those not a option? They are absolutely necessary for locations that freeze. Thank you.

[@jehugarcia]

Great point! There are two sensors on the bms they can be taped or glued to the cells or pcb an I have a connector for them on an updated design of the board to accommodate installation of these so stay tuned for that

[@michaelmiller5597]

How do you get around UL listing? If your house burns down insurance likely wouldn't cover it.

[@s.mendez7160]

You just print a UL sticker and adhere it with proper alignment to the plate below the breaker.

[@raulc.]

2 questions... 11 Can I use this on a golf cart? 2. How do you charge that pack?

[@jehugarcia]

Yes it can be used to power golf carts. I would use the LF280K cells . You can use any charger, with the right voltage. (57.5v max)

[@rhaijel]

this would be perfect for a second port for an active balancer ❤❤

[@gatecrasher1970]

yes need a 12v version for my boat

[@jehugarcia]

300Ah or bigger?

[@stefanocerna6504]

Con 4 celle in sere da 3.2volt 300amper lifepo4 is good for 2500watt di use inverter max 3000watt con cavi da 70mm2 rame

[@peejae082004]

wow this is amazing. i wish there was a pcb for smaller setups - 12v 100ah. it looks a lot cleaner since the bms cables are out of the way.

[@s.mendez7160]

Good request, thought he mentioned that for an upcoming video?

[@TomiasM911]

This is Genius! Thank you.

[@ChadKovac]

Looks good most of this is out of stock tho so what's the point of the ad?

[@jehugarcia]

What is out of stock? Everyone has been ordering the boards the compression plates and the cells no problemn

[@s.mendez7160]

Nice mechanical engineering.

[@panchodelranchoc]

Can you double the buzz bar for double the amps?

[@jehugarcia]

Yes

[@diyadventures9138]

Hi, when will you have more headway 64Ah board?

[@lkazanov]

Very nice, looking to build a 48v 16s prismatic array for a van. Using REC BMS, wake speed second alternator controller, Victron hardware. I am not sure if Daly is Victron compatible and will speak with Wakespeed controller.

[@bialy100k]

I have already very same style battery, just had own wiring, plywood plates and bottom plate. What I can recommend is to use plastic pipes over threaded rod in case of physical impact and possible shortcut between cells (bare thread works like a saw!). And one question, what torque do you use on your rods? In my opinion have to be very, very low (I use 4xM10 rods and torque @ 1.5Nm) - but Jehu have done way more batteries than I ever seen :)

[@RTmadnesstoo]

Do those cells matter if they are turned around? Can it be mounted on a wall?

[@jehugarcia]

They mount them on their side all the time

[@RTmadnesstoo]

@@jehugarcia That's great! I've got more wall space than floor space.

[@CharlesNewkirk-lb6uh]

Great video!

[@Halfwalker]

How about connectivity to canbus or preferable xanbus (Schneider) ? I'm partial to the XW-Pro inverters ...

[@jehugarcia]

Daly BMS supports CAN Bus

[@MrZiemwit]

1. eve this is grade b battery from alibaba not even close to grade a 2. two or on stud, no matter, inside is the same 3. cell works, moves so the pcb like this is wrong in assumption, but looks very nice,

[@jeffrey1841]

Do you still carry the 12v pvc boards for LEV60F 3.2v 74ah Lifepo4 Power Cells

[@jehugarcia]

Yes we have some on the website

[@OffGridGarageAustralia]

Sponsored by DALY😬

[@geoffreycintron4471]

do you have any of the older single post connector style left? My 280ah cells are that configuration.

[@jehugarcia]

works with both

[@mrt5393]

That BMS looks flimsy for 200A, I hope someone did load testing

[@seancarwin8034]

Hey good morning nice information I am thinking about building at 12 volt battery but not from himself as soon as I get some money I I will build a Headway 12 volt battery I am planning to go to your website and buy bus bar

[@benc1927]

What happens when the BMS fails?

[@jehugarcia]

you replace it , just like everything else

[@filemorf]

@jehugarcia hi Jehu, thank you for you recommendation on the BMS, about to install a system in a camper that will be used daily. What inverter do you recommend if I want to a pure sine wave, 240 volt and higher watt (around 3000) output. I know Victron is great and would like to use though can you suggest a lower cost brand, I am okay with using an imported model, hoping you have experience with a brand that consistently makes clean power at the advertised specs?

[@s.mendez7160]

It really depends on your load type: Resistive or Inductive.

[@filemorf]

@@s.mendez7160 Thank you for your reply, both as I am building a system for a full time camper, specifically looking to ensure smooth clean power for computer and audio equipment. After posting this question I thought about solar and charging and thinking that an all in one charger/inverter like an eg4 would be a good fit vs getting a generic import brand inverter. I am sure there are generic all in ones too however my guess is the support is generic if it exist at all, not good for a more complex device.

[@washington200823]

Se estivesse opção Brasil séria bom!

[@yogiber21]

Two Daly failed on me brand new anything from backwards wiring from factory to won’t connect to app

[@jehugarcia]

2 of them? Ive yet to see a bad one and we build several products using them

[@yogiber21]

@ I still have them I will try and make a video on them soon hopefully they have gotten better sense mine are a few years old

[@rcarhouse]

👍👍👍👍

[@marcobolognesi722]

Grazie…

[@gengar.resumenes]

The Spanish dubbing is too bad, there are translations that don't make sense and sounds that aren't words and it turns them into words, it's too weird.

[@jehugarcia]

I heard it. Didn’t think it was that bad

[@mikeh915]

Why not just buy Eco-worthy 12v 280AH batteries which include a BMS? Its far less expensive especially since they include the cost of shipping. Also far simpler installation. If there is a reason not to I would love to know.

[@jehugarcia]

Because you can buy a Ford or a Chevy. And pretty sure a budget battery won’t have premium cells

[@mikeh915]

@@jehugarcia The spec'ed cycle count on the Eco-worthy is a bit less (6000 vs 8000 on the EVE cells). Granted the spec sheets are often inaccurate. Have you done any testing with Eco-worthy batteries or used them?

[@jehugarcia]

No I build batteries mostly others review

[@arkatub]

What price you paying for Eco-worthy 12v 280AH battery? The blue cells are much cheaper than any pre-built battery I've seen.

[@JUAN-777]

verdad

[@lioshaleonidovich]

Подумываю купить такую.

[@janszy9735]

Still very expensive

[@jehugarcia]

Prices will go up before they go down

[@janszy9735]

@jehugarcia Problem It's project it's war too expensive Better buy second hands EcoFlow delta pro

[@johnculbert1927]

id love to be a customer I'm in the market for 50-60 KWh battery bank but i live in canada

[@jehugarcia]

I can help with that, I have free shipping to Canada right now jag35.com/products/eve-mb31-314ah-3-2v-lifep04-cells-8000-cycles-grade-a-free-shipping

[@darrenorange2982]

Kind of weird I feel like this build and design is pretty outdated. Daly really won't work well for these cells it'll never be able to balance and everything.

[@jehugarcia]

why wont it be able to balance?

[@davidsimoneta8513]

Jehu, KZbin proposed me this video... with an ai generated traslation in italian of your words: a silly experience... 🤪😂

[@jehugarcia]

yeah it will be a new thing now. 6 languages to start

[@NoCantsAllowed]

Ya keep sayin', "Right?" ...but... We don't know.... We're here for you to tell us. Right?

[@1ENDUSER]

Lezz goo

[@natworkbe]

Problem with daly BMS in general is the poor balancing. (Only 100mA, and passive, not active). There are other BMS out there with active 2A balancing.... with proven quality and about the same price.

[@martinmooren9536]

Poor balancing, slow update values in the app, measured amps bounce up&down like crazy with a constant load. Therefore the shown power is not correct and the battery percentage is wrong. I still use two Daly's but bought two cheaper JK's for my 3th and 4th battery. Battery percentage is still not perfect but the rest is. I wouldn't buy a Daly again.

[@s.mendez7160]

What BMS are you using?

[@natworkbe]

@@s.mendez7160 I have a 90kWh battery bank consisting of 9 banks of 200Ah-16cel (10kWh). After a LOT of research I came up with the JK inverter BMS. As said here by others, the battery percentage goes off when you don't hit the 100% SOC from time to time. Right now in winter here in Belgium (where i live) I never get 100% soc when only relying on solar. So every 4-6 weeks I set my victron inverter grid setpoint tot 1kW. That way after a week the battery hits 100% again, starts to (active!) balance and off we go. Note: english is not my first language...

[@martinmooren9536]

@@s.mendez7160 B1A8S20P-HP for a 24V system.

[@theagentsmith]

can you recommend any?

[@H8T3R]

I run 60kwh off grid from my experience JK is much better than daly. Daly sux. Also those duble post cell terminals are anodized try measuring voltage and resistance , anodizing works as an insulator there can be some issues with proper contact.

[@-LightningRod-]

build better batteries at home for fun and profit 1

[@theagentsmith]

Please don't attempt to save just a couple hundred bucks (thousands? no way!) with a DIY battery. You need skills and proper equipment. That thing shown in the video is 14kWh, a lot of energy! The connecting PCB seems it doesn't take into account for expansion and contraction of the cells, which still happens despite the compression. The BMS main contacts are close to bare metal panel with no insulation whatsoever. just need a screwdriver in the wrong place to make a huge mess.

[@DKLVE]

Excellent work and components but man .... what's with the translation ? Is that AI? 😂😂😂 Practice your Spanish

[@jehugarcia]

I’m fluent in Spanish

[@DKLVE]

@jehugarcia y por qué usas ese traductor ? La verdad se agradece el relato real en la descripción . Es solo una opinión. Igualmente me encanta tu contenido y he aprendido mucho Saludos

[@Shawn-ts4jw]

It's not cheaper anymore, under what rock have you been hiding????

[@kevinz8867]

terrible BMSs... grab a JK BMS