Headway 38120 HP 200 Amp LifePO4 Cells Can They Start My Car? Video Review Thorough And Amazing!!!!!
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- Опубліковано 10 лют 2025
- 4 HEADWAY 38120 HP 3.2V 8AH LIFEPO4 LITHIUM BATTERIES 25C 200A 12V SUPER CELLS At Ebay: goo.gl/ipk5ys
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Took a less than week to get the pack Pennsylvania to Texas
I state in the video that it was 1200mAh over in charge capacity but that was a typo it actually was 120mAh over in charge capacity. Thank you to foxabilo for pointing it out to me.
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Last update 01/18/19
Headway 38120 HP 200 Amp LifePO4 Cells Can They Start My Car? Video Review Thorough And Amazing!!!!!
batteryuniversi...
BMS Type DLX-9013-L10S-13N13-W02
Protected cut off upper 41.9
Protected cut off lower 28.79V
Battery pack is 4.0 AH 20A max Output(theoretical, not tested)
Battery Management System (BMS) is a protection circuit only
NOT a balancing circuit
Specifications For Cells:
Rated power: 2000mAh
Model: LS LR1865LA
Rated voltage: 3.6V / 4.2V
Charging voltage: 4.2 ± 0.05 V
Discharging voltage: 2.75 ± 0.05 V
Standard charging current: 1C
Standard discharge current: 1C
Maximum charging current 1C (T≥10 C)
Maximum discharge current: 10C 20A (t≥0 C)
Recommended temperature: when charging 0 ~ 45 C, with discharge: -20 ~ 60 C
Size: 65.1 x 18.4 mm
Weight: 46 g
Life cycle: after 300 recharges the capacity is retained by more than 75%
License: MSDS 2006/66 / EC UN38.3 UL1642 IEC62133 SDS CE KC CQC BSMI WERCS
Certificates: ROHS / CE / FCC / UL
Headway 38120 HP 200 Amp LifePO4 Cells Can They Start My Car? Video Review Thorough And Amazing!!!!! For Ebike Vape Harvest Powerwall
These cells are now BACK IN STOCK on Ebay: goo.gl/VpGao2 See the Video description above for all the links. Thank You . All the best.
I can't believe i missed them again. AHHHHh.. lol
@@MichaelMantion oh.... me2,,,,The listing you're looking for has ended.
Hi you mentioned using a BMS for these and thats ok but where would I find one big enough to also allow engine cranking in ether s4/s8 (4x2) configuration ?
The same person sells them on battery hookup
Regarding the comment about steel conducting better because it's stronger and denser... that's not how it works.
Electrical conductivity has to do with how easy it is for electrons to pass through the material. Density and strength have little to do with it.
Order of conductivity for common metals: silver, copper, gold, aluminum, zinc, brass, nickle, iron, tin, bronze, steel, lead
Iron is only 17% as conductive as copper, and steel ranges between 3%-15% depending on what's mixed in.
Metals conduct electricity the best also tend to have the best heat transfer. That's why most heat sinks are aluminum or copper and why many thermal pastes have silver in them. It's also why cast iron and steel are great to cook on, because they conduct just well enough to get hot but not so well that they dissipate the heat too quickly... ever notice how an aluminum skillet heats up faster but never seems to get quite as hot as cast iron at the same setting on the stove? Now you know why.
Thank you very much. I appreciate the feedback. I did do a comparison video for the steel vs copper bus bars here: ua-cam.com/video/I-AtvVCydD0/v-deo.html I also made a video on how I made the bus bars here: ua-cam.com/video/jP1vVb-z0yc/v-deo.html Thanks.
Hi Richard, Thanks for Sharing
I have a Question about Pricing me 60 batteries
38120, 8 amps capacity.
to L.A. Ca.
Can you please Give me Your Best Deal to Place my Order.?
Thank you.
You scared the crap out of me when you put the verniers across the terminals!
Trust me I made sure the tape was solid before I did it. LOL not into arc welding with my bare hands. Thanks.
Nice vid, would you recommend for ebike? Looking for alternatives
I've had people comment that they used them for e-motorcycles. I would be aiming for safety, weight and highest bang for your investment. You have to figure out how much range you want and how much you wish to pay. Thank you so much for commenting and watching. I appreciate it greatly. Subscribe, Click The Bell and stay tuned! All the best.👍😀
Could you please say wether you believe this battery is a good choice for powering hi wattage portable amp.. like a portable stereo.. think old school boom box, or modern day blue tooth speaker thank will crank a whole park, or large room
How did you car alternator handle the batteries? When you connect to the car would the alternator be able to charge the batteries correctly?
Stock alt should charge two banks of these no problem. If planning on running these though I would suggest removing the original battery and only running the lithium. It rest higher and there for the lead acid battery resting around 12.8 will trickle off of the lithium
200 amp may work in summer won't be enough for winter you need more like 600 amps for minus 40 degrees c if you want the engine to startup as a colder engine is harder to turn over then a warm engine amps are key to start your engine up though
Can you use this in a custom vape mod
Got 32x 40152 15ah headway cells on my bike 116.8v no BMS done 10.000 miles and they are still as strong from the day I got them!
4 years old great battery for my purpose.
Thanks
Looking for use on ebike as well, how do you charge them, please?
@4:45 While the larger automotive amps draw a lot of current, most of it is 'average current'. The caps in parallel only supply power for the peaks. I would hate to be in the same city block of a setup that drew more than 200 _extra amps_ on the peaks.
Thank you for watching, commenting and the valuable feedback. I appreciate it greatly. All the best. 👍
What was the original system these battery's were designed around?
Hi Richard.please advie what is the main difference from prismatic lifepo4 cells (e.g. 100,120,200Ah)
The difference in 100Ah and 200Ah is storage capacity. Thank you so much for commenting and watching. I appreciate it greatly. All the best.👍😀
@@richardlloydusa
No i mean difference between headway cells and 100ah lifepo4 CATL?
The only difference I can see is the packaging of the cells. Depending on what you require they could both better or worse as the Headway cells are individual and the CATL seem to be battery packs. Again it depends on what you require. Thank you so much for commenting and watching. I appreciate it greatly. All the best.👍😀
Would you connect your multimeter to your headway rig and THEN start your car... for science. I'd like to know how the voltage sags in such an intense application before I am 100% sold on these.
I just found out about these cells. Mind blown. I have been planning on building a battery bank with 18650s for my solar system up until now.
Great videos thank you for the detailed analysis and use of data 👍
So you want me to reset my all the clocks on my car AGAIN? LOL I may do this tomorrow for a quick video for all of you. Thanks.
I'm curious how the car circuitry can handle charging the LifePO4 battery pack? I mean, the car expects to charge Lead cells. If you leave the LifePO4 cells in the car they will be damaged (or worse)?
I am not sure that lead acid charging systems are compatible with LIFEPO4 chemistry. Thanks.
Don't use these cells in a hot engine bay as they can catch fire. I made a four cell starter battery with 38120 cells a fews years back. I knew there was a fire risk so I always checked the battery temperatures in the early days of using them. However the batteries never got very hot from radient heat fromt the engine in the winter months. However six months latter and I have forgotten about this risk and come 40degree summer day my engine bay catches fire. Would have taken the whole car if it wasn't for the bloke with the fire extinguisher. They need to be in a cool area to be used as a starter battery. Carry a fire extinguisher.
Great video again. When you put calipers on I thought there was going to be a bang, but you had tape on them. The .5 volt difference makes me think it is a fake, it is really weird, maybe a diode. It is probably some type of safety system.
Trust me I am aware of the possibility. I have to inspect the tape carefully before I use them in that manner. LOL I don't care to start arc welding a 200Amp cell. No thanks. All the best.
Copper is 5 times more conductive than steel. So I would suggest you take a piece of copper tube and smash it flat. Then use that as your buss bar so you won't waste the energy of the cell as heat.
The steel works great and is far stiffer than copper which makes for a more solid battery setup. I don't feel any heat on the bars when charging or starting the car. Thanks.
you should never ryly on your buss bars for strength. steel is a terrible conductor for electricity and corrodes much too fast. copper buss bars are expensive and not normally lying around. the second go to is aluminum. thats why many house hook ups were done with aluminum wire during ww2, the depression and some time after. aluminum is still a far better conductor than steel
If steel works and is not hot, then why not use it. You could also use aluminum too. I like that he used steel just goes to show you don't need to pay to buy copper stuff, which not only is expensive people might try to steal it. Maybe you should do a separate video on steel busbars so people can save a lot of money.
This is an FYI for everyone on this subject, the battery I built was a proof of concept battery. If you were going to use these cells in a vehicle you should put them in a proper water proof housing using a LIFEPO4 BMS and the proper charger for the chemistry. Now the steel bars offer less than 0.3 Ohms resistance each multiplied by 5 that is a total of less than 1.5 Ohms resistance across the whole battery. Yes you could reduce it to a smaller number if you wish by using silver bus bars if you wanted but as I stated above this battery was built primarily to test the cells and the 1.5 ohms of resistance the bus bars introduce is really inconsequential for my purpose plus the strength of the bus bars and the mounting screws on the cells made it the perfect choice for a quick and simple test. Thanks gentlemen, I appreciate your feedback greatly. All the best.
Works and works well. See the FYI I posted about all this. But I agree with you. Thanks.
Battery hookup 👍
Thank you so much for commenting and watching. I appreciate it greatly. All the best.👍😀
Please check current thru outer jacket to positive or negative post, could be capacitive leakage due to design,
OR it could be an internal indirect connection to positive or negative of the battery.
The difference is just using red clear nail polish on damaged outer film of the scuffed cell and proper spacing?.
The outer wrap is heat shrink tubing. Thanks.
Do the voltage measurement to the outside metal again and put as a quick test your fingers across the probes. Propably the voltage will drop. So the resistance of your multimeter is 10 or 20 MegOhm and it will give you any voltage against high resitance! I dont think the metal is connected with low impedance to the inside chemestry!
I am not sure what you are asking here? Thanks.
Compare the conductivity of steel and copper, or aluminum.
I will consider it for a future video. Thank you for watching and commenting. I appreciate it greatly. All the best.👍😀
what do you think on this type :LiFePO4 38120S (M size) Cell: 3.2V 10Ah (32Wh, 30A rate) - UN38.3 Passed
What are you using to test these, do you shut the time regulation on a imax to get the test done.
Interesting you thought it was odd that you were getting a voltage reading through the jacket. Those cells are very powerful cells, thus a thin layer of PVC jacketing (which is not sufficient enough to insulate) will show a voltage reading through it. That's how powerful these cells are! Great video by the way
I was reading the voltage from the metal jacket of the cell. I found tears and rips in the insulation that allowed me to make contact with the housing. Thanks.
You should apply some small load between plus/shell and minus/shell to test the resistance to draw current this way. My guess is that the voltage you measured will not be able to drive anything. It is just "leak" voltage through a very high resistance. If so, there is no real danger to short circuit the shell to either the positive not the negative pole. Would me nice if you post a video doing this test :)
Thanks, I will look into it. All the best.
Would these batteries be good choice to make a battery pack for a cordless drill?
too big, too heawy.
Great stuff and vital applications where power surge is needed. The automotive application seems ideal. BTW I thought it would be more convenient timewise and resource wise to buy readymade automatic chargers with full management. One thing that caught my attention though is the amperage where you stated 80 Amps output and I would like to know how you got to that figure. Thanks & Regards. Sham.
Actually they are rated for 200 Amp max. I realized after the video that I could use my car battery tester to check the amps and it showed that they were at 200 amps. I may do a follow up video on that as well as starting my car cold too. Thanks.
shamrai I was going to use my car battery tester as well.
Thanks.
I have 40 of them in my car now 😁
Wow! That's a lot of energy. Thank you so much for commenting and the very kind words. I appreciate it greatly. All the best.👍😀
I don't own any LiFePo4 cells but isn't the voltage range like 2.8-3.6v with nominal somewhere around 3.2? If thays the case I definitely wouldn't recommend trying to discharge them down to 2v, especially if that's what you're basing the capacity off of.
200A is obviously just short time discharge, or pulsed discharge. Continue discharge rating is 80A. (10C).
Perfect ebike batteries
Thanks.
can you help me to build a battery bank i want to do it for my house thanks let me know.
Would these be any good to wire up in parallel to build a portable solar recharge battery bank box for camping/etc? My current setup has a 20 some odd pound 35Ah lead acid that does okay at keeping my fridgefreezer running for 2-3 days and mostly indefinitely with 100w mono solar hooked up.
They would be good but they are out of stock. Here is an excellent alternative though: ua-cam.com/video/sREdlaPEgLg/v-deo.html&index=1 I am doing a video on these
I'd be interested in how well this does on a cold start on a cold day with a cold battery.
I missed the opportunity here as we had some 10 F days here in Texas. Today it is 57F so not that cold. If we get some more freezing weather I will try it cold. The cell has a working Discharge range of -20℃ to 65℃ so it should not be a problem for the cell but the engine is much harder to start in freezing temps. Understand that at 200 amps it's at the bottom range of a battery that will start my car. I may buy another 4 and make a proper 12V battery by connecting two of them in parallel. Thanks.
Btw, are you going to use them just to start a car, or complitely to replace led acid 12 v car battery?
Can I run a series of 24v power pack in 24v car inverter for a coffee machine 1200w/h? This machine works 1minute for a coffee. If it's true 200a discharge, should work.
Should be good to go it should only pull like 50amps well a little more because of inefficiencys
What BMS would you recommend to use with these particular batteries and who sources them?
These cells are no longer available from the seller but he does have these at Ebay: goo.gl/uVPS7h I have several videos on these cells and I think they are a better alternative. Here is my video review on them ua-cam.com/video/sREdlaPEgLg/v-deo.html and here is the complete review: ua-cam.com/video/Gw9f68gN_s4/v-deo.html How many amps are you requiring for your application? Thanks.
Richard Lloyd I plan on running a 100 watt ham radio amplifier and rig that would peak at a 30 amp draw.
You should have stuck the meter across that so we could see the voltage drop as it was starting the car
OK you guys are going to force me to connect this thing to car one more time..... LOL may do it to soon. Thanks.
Nice Video. What charger do you recommend for these batteries?
I am using a small Turnigy balance charger and individually charging each cell. I know this is not the most efficient system but it does work well and it ensures that each cell is charged properly. I am going to do a follow up video on these to answer this and a few other questions. Thanks.
Richard Lloyd cool, I bought a Tenergy TB6-B. I'm actually going to make a car battery and install that charger with it so maybe every month or so I will plug the charger in and balance it out. Then I'll run a 3-year test on it (in Phoenix Arizona mind you) and show the results afterwards. Out here in Phoenix, batteries don't last very long, so it will be interesting to see how this battery is doing in 3 years.
Cool. Interesting experiment. All the best.
i got a balance charge bms on amazon for like 20$ (9.50 i bought 2)
Interesting video but good god please at least when doing a live startup like this put an inline set of power diodes, the alternator is kicking out an insane amount of messy power right back into those cells. If they go bang it will take your face and most probably your bonnet apart. some alternators are more than capable of delivering 120A for the lead acid starting batteries, they really are 2 completely different beasts. Point regarding power delivery well made though but would be even nicer on the batteries will a secondary charge controller for the batteries and some supercaps in parallel to take to take the huge startup load.
You are most welcome. Thank you for watching, commenting and the kind words. I appreciate it greatly. All the best.
I checked the red Headway 38120 HP and the single cell non stop discharge is nowhere near 120A, All the Headway cells seem to be 10 to 30Amps non stop discharge. Your cells are second hand, the full new capacity is 10Ah per cell. Not criticising you, simply giving the information needed to make people aware.
what testing has been done that they survive a 200A Alternator and a 2000+ watt bass amplifier?
That was sweet, would love to replace the lead acid battery in my Electric Rav4 with a set up like that.
I wouldn't mind it either. I would use two 4 cell batteries connected in parallel to give me more amperage on the battery. I am thinking a BMS and a charging system for LIFPO4 would be good but I am not sure if it is really needed as the cells would only need to be topped up most of the time. it would shave at least 40 lbs off your vehicle and that would save you gas. Thanks.
Headway also makes 10Ah cells in this form factor, with a bit lower current ratings. And bigger ones to, in 38140 and 40152 forms. Up to 15Ah (but somehow not economical).
Where could I find a circuit diagram for charging protection of a 2x2 cell? 6.4 volts. This is a low current application (< 1 amp)
can I charge these with off grid alternator and watch for minimum current draw if not what charger and where can I get it. was going with deep cycle lead acid until I saw these.
Interesting! I wonder how those will work in cold conditions. Can you make a video starting your in cold environment? (or put those batteries in deepfreeze and start car after that.) Colder than -20c
they arent supposed to be charged under 0c
Perfect for load balancing a lf inverter or ev
can i use these cells on a solar application for my house
Yes, they are suitable for that purpose. Thank you for watching and commenting. I appreciate it greatly. All the best.👍😀
@@richardlloydusa hi I don't know much about these cells and of BMS so it a must protection wise to have them on or just connect them with bus bars and lets go
Will it work in an amateur enviorment? I need a constant discharge of 4amps on receive peaking to40 amps on transmit? The ratio of receiving to transmitting is 75 to 25 %. I need maximum autonomy. Is 8 ah sufficient of I need more sets in parrarel?
They are very powerful check the specs and see if they will serve your purpose: goo.gl/zuN2NK Thanks.
Richard Lloyd yes they can dish out 200A to start a car. A big burst of power. However it is only rated at 8Ah. That rate is small. If i had to use a lead acid battery i would need at least an 80 /100Ah battery. What concerns me is how many hours;of autonomy can one expect at the discharge rates I mentioned. Supercapacitors seem to have the same specs.
I think you are confusing Ah with Amps. 8 Ah means the cell can provide 8 Amps for one hour or 1 Amp for 8 hours before being depleted. At 200A draw this battery would be depleted in about 2.4 minutes. Still incredible. Thanks.
Christopher Warren - Keep in mind these batteries have a low energy density compared to ordinary li-ion batteries. That is the trade off the designers had to make in order to be able to provide very high currents. For a base station that is not a big deal, but for portable operation it would go with conventional li-ion because I can get the same operating time from a battery pack that takes less space and weighs less.
Yes Richard, you explained it very well. So if I need an average say 12 amps during one hour the battery would be depleted in 0.7 of that hour 42minutes. So i would need 3 banks of batteries. Am I right?
so i wouldnt be able to use a bms from lithium ion batteries?
Unfortunately the LifePO4 Cells are not the same. Thank you so much for commenting and watching. I appreciate it greatly. All the best.👍😀
@ oh okok and yeah no problem man thanks for the info described in the video
Are there any 200A 4S LiFePO4 BMS for these?
Can they be used for an electric car range extender?
They are very powerful check the specs and see if they will serve your purpose: goo.gl/zuN2NK Thanks.
That was my question :-), I was asking if anybody can suggest or even has an experience with EV batteries. I need to extend my range or have an emergency back up if cannot find a charging station near by. I am looking for 3-5 kWh pack.
Btw., I believe this is a car battery made of these LiFePo4 cells (with the hefty price tag on it): www.renogy.com/renogy-lithium-iron-phosphate-battery-12-volt-100ah/
Wow! Crazy price on tha battery. Thanks.
Did I go overboard with these. I bought 16 of these to make a 48v ebike battery. And then I just bought another 16. So now if my math is correct I'll have a 16ah 48v ebike batt. Is that too big?
That all depends on the specifications for your ebike. 16 of these in series at 4.2V (max charge voltage) will produce 67.2V so if your bike circuits can handle that then they will be fine otherwise you will have a problem. Check the specifications for your bike and match the battery you build to it. Thank you for watching and commenting. I appreciate it greatly. All the best.👍😀
have fun doing back flips from a stand still.
I bought 20 and I am making a modular car battery replacement.
I only need 4 in series to power and start my car the other 16 are going to be modular to the point I can configure them on the fly to be 24 volts. That way if I see anyone needing a jump on the road I dont gotta park my car all awkward I can just take away the modular portion and start their car with that.
I am still just trying different set ups. I am relocating it to the trunk to open up breathing room for my engine and it should be pretty dope
16 cells won't make that much voltage because they are lifepo4 and the maximum voltage is 3.65v instead of 4.2v. You'll need 15 cells to make a 48v battery pack since 3.2v is the average voltage. I believe you can buy a BMS for any number of cells in series, but I would go with 15 cells in series to not mess the controller.
Nomad Chad yes mate that’s correct. Depends what kind of bike you are intending to build
If it fits it ships
Would these be good for an ebike battery?
Yes, they would be a perfect fit for that application. Thanks.
What would you have to do to leave them in a vehicle?
It would require a suitable (LIFEPO4) charger and BMS. Thanks.
Wow ! Wicked good
do think this would work in a solar battery back
I wonder if these could work for my amateur radio portable setup....
They are very powerful check the specs and see if they will serve your purpose: goo.gl/zuN2NK Thanks.
Check out UA-camr OH8STN. He has used the exact same cells for this.
Hi buddy. there are no more on ebay? thanks
Very cool. They must take a while to charge. Maybe you mentioned that in the vid but I missed it.
I charged them at 5A for approximately 5 hours and I charged them individually as I was using a small Turnigy charger on the LIFEPO4 setting. It worked well. Thanks.
Thank you. I always enjoy your videos.
You are most welcome. Thank you for watching, commenting and the kind words. I appreciate it greatly. All the best.
copper bus that size should be rated at 202.185 amps. steel is not as efficient as copper, so it might add resistance to the circuit. use copper!!!! should be fine to derate max to 90% though.
can you solar charge them?
Did it can use with vape?
I need this for my solar setup I am building
Available here on eBay: eBay : goo.gl/WCSE8r
I checked the red Headway 38120 HP and the single cell non stop discharge is nowhere near 120A, All the Headway cells seem to be 10 to 30Amps non stop discharge. Your cells are second hand, the full new capacity is 10Ah per cell. Not criticising you, simply giving the information needed to make people aware.
Thank you for watching, commenting and the feedback. I started my V6 3500 CC engine with these and I know that takes way more than 30A to do. I appreciate it greatly. All the best. 👍😀
Great video/info !!
You are most welcome. Thank you for watching, commenting and the kind words. I appreciate it greatly. All the best.
i hade no idea these exist, dont mind me making a vape with these now
If your pet dragon is a vaper YES these cells will work. LOL Thanks.
As to steel vs copper as bus bars, steel might be harder and tougher, but it is not as good a conductor of electricity as copper or alumin[i]um. See for instance www.thebalance.com/electrical-conductivity-in-metals-2340117
Not that I think these short bars will be any real issue.
The steel works great and is far stiffer than copper which makes for a more solid battery setup. I don't feel any heat on the bars when charging or starting the car. Thanks.
Steel has more resistance than copper by AN ORDER OF MAGNITUDE (10x). Just sayin'. I've had some bad things happen using steel as a low voltage - high amp DC conductor.
Anyway, thanks for the videos. I've been off-grid for over 20 years and am always looking for battery options. So far, if properly maintained, cheap-but-good lead-acid batteries are the best bang for the buck. Our current set (2200 AH at 24 vdc) is still going strong after 10 years (forklift battery set). Wish I could get a hold of a bunch of these, just to play with.
Nice video, just not sure about the relevance of your car test. You cold-started the car with the lead-acid battery. Then you disconnected it and connected your cells while the engine was running. If I understood your comment at the time correctly you said that the car is currently running on these cells. This can't be true as all the electricity in the running car engine is supplied via alternator including charging the battery. Then you used the cells to restart a hot engine. You don't need much of a capacity to do that. I am not criticising your video, just trying to understand your point. These are nice cells indeed, but there is no way this 8ah battery will replace an 80ah+ lead acid battery, least of all acting as boost pack when a cold start of the engine is needed.
Here is the cold start test : ua-cam.com/video/61NDp41K7fg/v-deo.html Thanks.
yea the price is OK. almost buy one get 3 free. compared to some prices I have seen. but I need hundreds of amp hours. so the price is kinda high.
The price I show is the highest possible price. Alarmhookup on eBay : goo.gl/WCSE8r will negotiate a lower price on these for you for a bulk buy. Contact him on eBay and ask him how much for the amount you want. Understand that he will run out of these, so make sure you do it right away. Thanks
James stranger yes these will be gone quickly.
You know it. They are a very good value. Thanks.
You know it. They are a very good value. Thanks.
so you're the reason they sold out....i was waiting for payday to order more..but nooo...you had to tell everyone about this listing...thanks :(
Be EXTREMELY CAREFUL touching your METAL caliper to both ends (+) and (-) at the same time. Might get a MONSTROUS FLASH that could set fire to the battery. Have an electrical type fire extinguisher on your desk!!!
The blue tape on the calipers is there to act as an insulator aganst short circuit. Thanks.
These cells can still function after a dead short. (Not recommended to try though)
use 10 of them to make a portable poower bank and never need to charge it for a month of use lol
could you use these cells in a solar power system
I don't see why not? They are a solid set of cells and deliver a very steady voltage as LIFEPO4 chemistry is known to do. Thanks.
Iron Edison Battery is now selling them for solar applications.
"BATTERY LIFE: Supporting a daily 80% depth of discharge, Iron Edison Lithium Iron Batteries should last 16 years or more (6,000 cycles), and comes with a 10 year warranty.
INVERTER CHARGER BMS COMPATIBILITY: The Iron Edison Lithium Iron Battery is designed to be fully compatible with industry leading inverters and charge controllers like Schneider, Outback, Magnum, MidNite Solar and SMA. Unlike the Tesla PowerWall, Iron Edison’s LiFePO4 battery comes in industry standard 48 volt configurations making it a direct replacement for lead acid battery chemistries."
ironedison.com/48-volt-lithium-battery-for-solar
Why did you wire/ plate them like that.... If they were treated like a normal battery all positives would be hooked and all negatives would be hooked in parallel.. They all will not charge at the same rate that way.. why not make 2 long bars with 4 holes to hook them all in parallel correctly so they all charge and discharge the same time.
OMG, thank you! Thank you! The last video I watched didn’t mention anything about the different charging methods.
You are most welcome. Thank you for watching, commenting and the kind words. I appreciate it greatly. All the best.
lol a 3,500 cubic inch V6? maybe a 3,500cc (3.5L) V6.... had no doubt it would start it. I want to try this on my Snowcat! 9.5L 350HP, we normally start it a -30 to -40c!
I figured it would i mean they are rated for 200 amps so i bet they are and will put out a lot more than that briefly
To bad you cant use these for ele skate board or ele bikes lite wt..
Thanks.
wouldn't it be nice if 18650's had connections like the Headway cells!
Yes, that would be a very nice feature. Thanks.
Run a bank of 28 in my truck of these.
Nice! That's a lot power. Thank you so much for commenting. I appreciate it greatly. All the best.👍😀
11:50 you say steel better conductor than copper but mispoke
Why no BMS Board ?
I was only testing the cells capacity and power not really making a permanent battery. You are most welcome. Thank you for watching, commenting and the kind words. I appreciate it greatly. All the best.
@@richardlloydusa Yes i understand, that's what i thought. I'm looking for Lifepo4 cells like yours for a motorbike, do you think that 4 smalls 6500mah lifepo4 cells would be ok ? Do i need a capacitor ?
Nice video im thinking of geting them allso for an e bike.
They are monsters, if you do get some please let us know I'd love to see how they perform on a bike and what your using them for, You'd only need 12 for 36v and extra 4 to bump them to 42, I think I'm right they are 3.6v max? but I think they'd be cool.
i have used the 10 amp/hr headway 38120 cells for e-bike power. they are difficult to install, due to their size and weight, but they do kick out lots of amps. I ruined two cells while charging.....the bms was not able to keep all cells balanced during the charging process, and two cells overvolted. This was due to the internal resistance of the cells... they vary quite a bit from cell to cell. you need to discharge and charge each cell separately, and catalogue their internal resistance. When you assemble your battery, only use the cells that closely match each other with regards to internal resistance....otherwise you WILL have problems balancing your pack, most bms’s only balance with small currents, e.g. 50 milliamp, This is not adequate if your cells are not matched, and you are charging say, at 5 amps. If you take the time to match your cells, these make a high power quality e bike battery. 16 cells for a 48 volt pack....get more cells than you need, and be prepared to toss aside the cells that have a very high or very low resistance.....they need to be matched closely for the bms to be able to balance effectively. They self discharge quicker than lipo cells, too. not so good if your ride is sitting for months at a time unused. charge and cycle at least once a month, you should be ok
noticed on your capacity testing that your discharge current was 33 milliamps on one cell, and 50 milliamps on another...how about seeing a voltage discharge curve at higher amps? nobody is going to be using a high output battery at a milliamp discharge. A continuous load of ten amps while showing the voltage curve would be far more usefull.
There are a few videos on UA-cam of people who used them for ebikes. Thanks.
Awesome feedback, thanks.
I have not really looked into lifepo4 but wouldn't full discharge be like 2.7v you said you did not discharge to 2v
The full discharge on these cells is 2.0 V . You can see the specs here: goo.gl/7QkvuC this is one of the many pages I found on these cells with the same information. Thanks.
James Holbrook LiFePO4 cell’s are 3.2 volts
Thanks.
different story below freezing temps...without warming, nice test by you though
I bought 8 of these 38120’s the are monster power in a small case. I’ll be working with them in the next few weeks. So nice for those who need 12v.
What charger are you going to use for them? Thanks.
I will charge and do a discharge test. I will run them as a 1S,2P pack in parallel with a 12 AGM battery. I will top balance the pack to the resting voltage of the AGM battery. I may puta BMS on them as well. I think they will live fine in that combination. The AGM discharge drop out will be 12.3v so that will leave each LiFePO4 cell at 3.075 volts well above their recommended 2.0-2.5 drop out voltage. Jehugarcia seems to think they will be fine that way. They won’t be In a high heat high draw situation. No automotive applications. I will draw from them likely at .5-1.0 amps. If the drop out voltage was even close to that of the AGM I would be far more concerned. So I will charge with a standard AGM charger as I think they will equal out okay. Charge rate of maybe 2 amps.
Thanks. I have tested them with my car battery tester and they tested at or slightly higher than 200 Amps. I will be posting a follow up video shortly. All the best.
Hey that’s awesome. I am subscribed to your channel and will be looking for your video, great job! 👍👍
Thank you very much. I appreciate it. All the best.
Can I make a ebike battery of 72v
Try making your videos shorter.
Very interesting video.
Thanks.
Why do you say Thanks to everything...
Thanks... lol
@@athenamowder2354 that would have been great if he replied thanks to you
It's hard to shoot that video during the day. I understand.
the jacket itself will discharge the battery. The Jacket seems to me made of poor mats. I'd resleeve it asap. Seeing this, i'd pay .50 cent a cell.
“LifePo4” 😁 sorry, but it sounds kinda funny.
I’m sure 200 amps is all useable for ev’s.
Please build bms
You can buy a BMS that looks like it's built for this application here on Ebay: goo.gl/xAVmjg I may buy it to play with it. Thanks.
can you start a scooter with one cell?
If the scooter can be started with 3.65V or less and requires less than 200A to do so yes.
More than likely you need 12v.
4 batteries in series as show in video
Does anyone have a spare 38120 8AH they would sell me? I received one bad cell from my order :/
Thanks. Good luck.
I see this type of cells being used in flashlights!
That would be a monster flashlight. Thanks.
And then vapes...
Yes. Thanks
They're probably more likely 26650 or 20700, etc. I've never seen a torch that uses these, though I'm sure one is available somewhere, but most use 14, 18, 20, or 28mm diameter cells with various lengths. All of them are hard to tell apart in photos without scale though so an 18650 flashlight with the battery next to it could easily look like a giant flashlight with one of these cells next to it
So you do agree that it can NOT be a replacement for your lead-acid car battery due solely to the charging system in a car... yeah the volts/amps are similar but the charging will eventually fry, damage or otherwise render your LiFePo4 cells useless. You will need a CC/CV source to recharge these cells and that's added "stuff" you'll need to do it correctly (and a proper LiFePo4 BMS). That would be an interesting video to pull together.
Rather spend the same amount of money on a lithium jump pack, comes with charger and pre packaged!
That is a good alternative. I am not sure you can get a 32000Mah jump pack for the same price though. Thanks.
In series they are still 8 Ah , 32 Ah in parallel .
But this lot is only 8000Mah, not 320000. In case you did not realise it, when you connect cells in series you increase the voltage. You DO NOT increase the capacity. The capacity of your 12V battery of cells will be equal to the capacity of the poorest cell on that battery, not the sum of the capacities. To increase the capacity you would have to connect the cells in parallel, but then of course you do not increase voltage. Nature is a bitch, heh....
Thanks gentlemen.
But, that really is not the idea it can replace a battery. Many people have cars with dead batteries they are pain to keep charged. The self discharge of lithium is 1% a year. The money you save on gas mileage due to less weight will probably pay for the batteries and you probably use these for 20 years or forever. Do at your own risk though. Also if you have a small ghost load like a glove compartment light on it will drain battery to zero, if that happens phosphate cells swell. However they can possibly be recovered in a week by putting a voltage back on them and allowing them to deflate.
Curios to See inside...
I am not brave enough "yet" to cut into a 200 Amp capable cell. LOL Thanks.
chargers??
I am using a turnigy accucell 6 and charging them individually though this is not the optimal way to do it. I may make a video on how to charge these properly in series and in parallel. Thanks.
running my ac
As soon as I go to click buy on them they're gone, in like 10 minutes.
He only had a limited amount. Thank you.
keya Aap mujhe Hindi me jakari de sakte hai plzzz plzzz Help.....