Headway 38120s LifePo4 50ah Battery Build with BMS
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- čas přidán 6. 09. 2024
- This video is about how to build a headway 38120s 50ah battery pack with a BMS. This is a DIY on how to build a 50ah battery pack and or power wall. Follow these instructions to build your own headway 38120s 50ah 14.6v 5p4s battery. You can find all the DIY parts needed over at our online store SolarGeni.com. I use 20 new headway 38120s cells in a 5p4s configuration to achieve 14.6v and 50ah. These packs are great for tesla power wall applications or for ham amateur radios, competition car audio, electric trolling motors etc.
Headway 38120s LifePo4 cells:
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How to build a 50ah Headway 38120s LifePo4 Battery with BMS Complete Build
1000% GOOD VIDEO Cordialy
David, thanks! Glad you enjoyed it!
I noticed that you had forgot to mention that there are two types of headway cells .The (blue) wrap= is for more capacity. And the (red) wrap= is for high output. Over all if you need large amounts of amperage in a burst application. You need the red cells.
Yes this is correct. I sell both types of cells over at SolarGeni.com. Thanks for watching.
5/32" is very close to 4mm so the battery terminal is actually metric (4mm).
Tony thanks for watching and I noticed you subbed! Thanks!
glad to see you back!!!! Robert
Thanks! Glad to be back! This move across the country has really kicked my butt!
I didnt read through all the comments...so.. I recommend that all jewelry be removed when working with batteries... Your ring could cause a cell to cell short...Safety First..
Ya my mistake. when in the shop building I generally never wear jewelry. This is what happens when you're in a temp situation.
The BMS or battery management system is not used to "protect your property or whatever" it is used to protect your batteries from overcharge/discharge, short circuits and to balance charge your batteries
This was a great video. The only thing is a I wish you would have a had a charger there and connected to the bms. So it was truly complete. I applaud how clear and easy to understand the build was though!
Thanks Wes, EXACTLY what I needed/thinking of building. I don't see the copper bus straps on your website. Looked at both "All Products" and "Accessories."
Dwight they are now on the website. Sorry for late response. We have the 2 hole, 4 hole and 5 hole copper buss bars in stock and ready to go.
If any of you are up here hand assembling these battery packs we would suggest wrapping your screwdrivers etc up with shrink wrap up to the end of your tool's and don't be wearing any jewelry or rings. 🪛 🔧
Or get electrician screwdrivers
@@sigersonholmes7758 Can't afford to do that I spent every penny I had left on these new Graphene Supercapicitors. 30,000 Amps... 🌎 ✈️
Hey Boss, You can send that to me when ever!!!LOL!!!Hope all is well Wes!!
Hey bro how ya been? Back in the NW. Still trying to get settled.
@@WesThatTechGuy Man, That means you can save on the shipping bill and i'll just pick it up....LOL....Yea we just found out after 10 years of living in my current home, and all the BS I told you about(I forgave, but didn't forget..LOL)....We have to move also. I'm not ready for a move, and I'm not looking forward to it. I'm happy to hear your finally here!!!!!!
Will charging my lifepo4 headway bank at 14.8v instead of 14.6v cause them to degrade? If so is it substantial fast or would it be a slow process?
For battery longevity with LifePO4 Batteries a Max of 3.4V see "Off Grid Garage" for further charging rates for charging batteries with the ideal charging rate voltage and amperage.
if you add 4 bolt trow the plastic of the battery holders and then you have a stronger pack
a few questions.. I might sound being dumb..
1. Where do we supply the Input power to charge the 18650s? and How many Volts do we need to provide?
2. If the answer to my first question is "P+ and P-" then from where do we get the output power?
3. How many Amps max can we get out of this battery? What are the factors that determine the Max Current output?
Look up the Spec Sheets
Fkng outstanding! I know there's a lot of these companies that are mad about this professional presentation😂 and many people don't know that xs power and limitless uses those Yinglong lithium cells and just slap a sticker on it with their name and mark them up damn near 100% in price😂 and most of them are B rated cell's😱 Damn nice tutorial sir!👍👍👍
Great to see you making videos buddy.
Thanks! Good to see you back. Go check out the new website! It's getting better everyday.
I require some expert advice.
I am building a 12.8v battery using 4 x 38120 headway cells.
This will be used inside a car powering my project.
I would like the cells to be charged from the car battery/alternator but using low current.
The BMS says 50A charge current and I was hoping for more 5A as can be plugged into the cigarette socket to charge or trickle charge the pack.
This way I can also fit some protection like a resettable PPTC fuse so when the project load requires high current, the fuse will trip and only current from the 38120 pack will be used.
Is this possible or does the BMS really require 50Amps?
Thanks
Easy answer is yes you can do this. You can also run a five amp fuse to the BMS and that would be fine also. The problem if any will be the direct voltage coming from your cars alternator to the battery pack. Just make sure that the voltage does not exceed 14.4 to 14.6 V EVER and you’ll be fine, otherwise you’ll have to put in a adjustable buck converter.
@@3DLasers How would these cells damage an alternator or fuses? Your not making and sense.
What's the difference if I have four in a row 16 total versus 5 in a row 20 total like you? Tnx
Ideally LifePO4 Batteries like to be connected in Series.
If it's 4 in parallel and 4 in series, the voltage stays the same (determined by the number is series). What changes is the amp hours. 4 in parallel would be 40 Ah since each cell is 10 Ah.
Hello, which would be the best BMS for an array of 8 batteries? I mean 12v 16amp. Thanks in advance
Can this be used to start a car engine and be charged using the car's alternator?
Yes
Weird way to store Red Bull’s.... but you do you man
LMAO! Thanks bro!
I appreciated the comment someone made about the red versus blue cells, I need red so I'm going with them but are they going to be the same amp hours for this 20 cell battery?
The Headway 28120HP batteries will let you dump more Amps and they charge faster but their nominal use is at 3.2V and they only have a Cycle Life of 2,000 charges but they have a LOT of get up and go off the line... ✈️
They are only 8A but if you need LOTS of Amps and a Super High Amp Quick Charge they'll give you a LOT. What are you building ESTOL/EVTOL ?... ✈️
See "Off Grid Garage" for further discussions on LifePO4 battery use and best Charge Curves and use of those batteries. 🔋 🔋 🔋
Look up the Data Sheets on those Headway 38120HP Batteries and they will give you the ideal temperature ranges and everything else. They're really nice batteries I just ordered a whole bunch of them... $$$$$$ 🇺🇸 🌎
Hi Wes. I just bought 2 blue Headways from you on eBay. Nice batteries. I am confused over the amp hour you quote. If each battery has 10 amp hours and you put 4 in series for 12.8 volts don't you have 40 ah? So on a 20 battery setup that would be 200 ah - No? How come you say 50 ah? Thanks in advance and I shall buy from you again.
Izif thanks. if 4s with 10ah cells you will have 10ah only if 4p you would have 40ah. series connection doubles the voltage but amps stay the same. Parallel double the amps/amp hours but voltage stays the same. I used 5p in the video hence 50ah. Hope this helps.
whats the difference between 38120s to the 38120?
I love your baseball cap
Great video.
I have a question if you don't mind answering.
I've got a 100A BMS and building a 12v battery.
I will have charger constantly connected to the BMS (Car battery/alternator)
When my project needs the power from the battery, is there a way to prevent any current being taken from the charging source?
I was thinking a relay that opens when my project needs to use just the 12v battery.
Can't use diodes etc as the charging source needs to charge the battery.
100a BMS is probably too small for the cars alternator and possibly the load you're trying to achieve.
can I use this for trolling motor 45LBS/12v?
as long as it doesnt require more than 150a continuous discharge on the pack. Otherwise get our 38120hp (red) batteries.
Thanks for anyone willing to answer: i have built a small itx pc out of a 9x12 fancy vaultz case. amd, video card, powered by an m4 atx carputer variable voltage input powersupply. i have it wired to run from a 12v 200w power brick. works great. now i want to run it off some tesla 2170 batteries. 8 of em will fit into a 4s 9600ah arrangment, giving me over 120w. the system pulls 100 or less. so what i want to do is connect the 4s pack to the ps of 12 output, using a step up put out the 16.8 to charge the lithium 2170 4s pack also adding a bmi. i want the pc's ps to charge the 4s pack, but then also be able to run off of the 4s pack when powersupply is disconnected from wall. my question is, since 4s pack is gonna be connected and charging from the same ps it will also be feeding, how do i get it to work like a laptop battery, where its connected and charges while ps is plugged in to wall, but doesnt also give its own current to the ps. i dont know enough about bmi's or how to connect this in a way thay would work and is safe. let me know if you get what i mean. i wanna basically give the pc its own portable battery pack that can also be charged when plugged in to wall. ideas?
How many watts with a Stock alternator charge of 140amps could this bank be good for? Looking to get this for battery replacement for car and using with aftermarket sound system with 5,000 watts
you would want or red 38120HP batteries for that high of wattage stereo system. the bank in this video would be a max of 150a charge and 150a discharge. NOT recommended for a 5000w 12v audio amplifier. The red cells in the same size pack would allow for 1000a both discharge and charge current.
I am thinking of making 48volts system with this batteries by connecting 16 in series and 32 in parallel. Making it total of 512 cells. Then use one single 200ah BMS for the system.
Will this work and how do I calculate how many Kwh this will give me using 512 cells at 48vols.
2ndly. Is there a better sell to use instead of this for 48 volts system?
Yes this will work fine. your kw rating is done by adding the number of cells in parallel and multiply them by the AH rating of each cell. so:
10ah x 32P = 320ah or 15.36kwh @ 48v or 15,360wh @48v. glad to help. These are the best cells you can get, you can get more powerful ones like the 38120HP cells. What is your application these will be used for?
So many questions about the batteries. Look up the Data Sheets... USA 🇺🇸 🌎
Verry informative tutorial. More vedios sir.
Can you do a 48 volt headway build video? Thanks
Yes coming up very soon.
If I build this pack can I use it in my car and use my alternator to charge it or will I need a charger
Yes you can. it's the same voltage as your car battery. You can't throw you will need a amp specific buck converter if the pack has less than 8p because your cars alternator puts out around 225+amps. at 8p4s this pack can take 240a continuous charge. If you use the HP cells (red ones) than you can run a simple 4p4s pack and be fine.
@@WesThatTechGuy I was going to buy the one you build in video my alt is 100amp would that work I have a amp that pulls 200amps and already have a 100ah agm in my trunk I was going to run that with the bank I'm kinda new to the lifepos that's why I asked befor I buy
Chris that will work fine. Let me know I can have one ready for you to go.
Does the choice of BMS matter when using 38120s vs 38120hp cells? Looking at the 4 cell packs.
NO you just need a 4s LifePo4 BMS
This is cool Im learning all this stuff. I want to build my own mack battery. But I want to build it right with out blowing anything on the truck or computer system. My trucks have a small short that keeps draining my current batteries and its a pain. Im always replacing them ..Costly and a pain. Can I install a BMS to cut off the power once the truck is off..ect..Im going to order from you thanks. Cool vid bro
No bms can handle the amps you get while cranking. If you find one, it can shut off power once the battery gets low. You can install a high amp cutoff switch to stop the drain. Or find the drain.
Great vid, but I can’t find the tape or 4 & 5 hole or copper straps on ur site and when I hit amazon link I just see goalzero and and other stuff
Thanks Tim. You can now find them under the Accessories tab on the site.
Very nice video
Not the right connection coz your meter displayed negative lol. Kidding aside thats a good build right there.
Ya just connected in revers but same voltage. thanks for watching.
So just curious. With each individual cell being 10 ah a piece. Wouldn't that come out to a 100 ah capacity battery?
Corey Luke No because there is only five in parallel 5×10 = 50
Could we buy this already setup???
yes on my site we sell them pre-built
@@WesThatTechGuy send a link
Shadrick Simms solargeni.com
@@WesThatTechGuythanks
Are the plates nickle or nickle plated?
these plates are steel nickel plated and we also have copper nickel plated.
why do you use 20 batteries for a 50ah? are they too many for a 50ah? thanks
the video tells you that answer? 5p = 50ah. 4s = 12v 5x4=20 cells
@@WesThatTechGuy thanks for your reply, so you have 4 groups of 50ah right?
@@shelis_fishing3626 Each group of 4 cells in series is 13.4 volts and has 10 amp hours. So the battery I put together to fit in a trolling motor plastic case has 8 rows of 4 cells each so that's 80 amp hours.
He has 5 rows of 4 cells which makes 50 amp hours.
I don’t see that 5x5 kit on your site. Can you post the link?
Tim working on the kits now. what one is it that you need? refresh my memory please. thanks.
Wes That Tech Guy thanks. I was referring to the kit described in this video
Good
do you sell the bigger BMS on your web site? Robert
Robert, YES they will be updated today or tomorrow.
It pains me to see him using an impact driver on those bolts. Very easy way to damage your battery cells.
Normally yes, but Headways are pretty rugged. So are Fortune cells, which happen to be my favorite.
Hi if I want to build a 100ah will I need 40 Cell’s and just do the same build please?
10 cells in parallel is 100Ah. 4 rows is series will be 12.8v.
Hello sir, I need the headways in bulk quantity I am a OEM for small E bike and e rikshaw batteries, how much would it cost me at doorstep in India, coz shipping from US to India would be quite a lot. Can you please suggest a good manufacturer for these batteries??
I can see what I can do for you. go to my website SolarGeni.com and contact me with your shipping address etc.
How about some top view and see what is going on
what brand bms where to buy it
Solargeni brand and you can buy it at SolarGeni.com
See "Off Grid Garage" for a thorough discussion on charge curves for best use. 🇦🇺