DIY 12v LTO (Lithium Titanate) Battery
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- Опубліковано 8 чер 2019
- This video has a mistake! UPDATED VIDEO on LTO: • I was wrong about Lith...
LTO Safety Test Video: • Battery safety: Yinlon...
More info on LTO: www.eetimes.com/author.asp?se...
$276 for 6 Cells used in video (affiliate links below): www.aliexpress.com/item/32915...
5s BMS (let me know if you find a 6s one):
s.click.aliexpress.com/e/b1LWv2ec
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My Favorite Online Stores for DIY Solar Products:
Signature Solar
Offgrid One-Stop-Shop. Best Value 48V LiFePO4, Victron and Offgrid Specific Heat Pumps:
www.signaturesolar.com/?ref=h...
Current Connected
SOK, Victron, Mr.Cool Heatpumps and High Quality Components:
currentconnected.com/?ref=wp
Ecoflow Delta
My favorite plug-n-play solar generator:
us.ecoflow.com/?aff=7
AmpereTime
Cheapest 12V batteries around:
amperetime.com/products/amper...
Renogy
A classic 12V solar store that has been around for ages!
renogy.sjv.io/n1VjXx
Rich Solar
Renogy's biggest competitor! Similar products, but at a better price:
richsolar.com/?ref=h-cvbzfahsek
Battery Hookup
Cheap cell deals
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5% off code: diysolar
Contact Information:
I am NOT available for personal solar system consult! If you wish to contact me, this is my direct email: williamprowsediysolar@gmail.com
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Every video includes some form of paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense :)
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After messing with these cells some more, I don't like them. They are heavy, expensive, inefficient, hard to wire, and the charge cycle/ temperature benefits aren't really necessary for my applications. There are some interesting applications for these cells, but I found them to be a pain in the butt.
And yes these are probably cheap/grade b cells considering their price. Not a big surprise if they are, but I don't care to research it more due to the downsides of this chemistry. That discharge inefficiency loss is just horrible. I'm sticking to LiFePO4.
Seems like the car audio crowd likes these cells for their charge and discharge rates. Makes sense.
Anywho, they are very interesting cells. But I have no motivation to do further testing. Going to focus on LiFePO4. Currently my favorite chemistry. Superb properties for solar power systems.
*Does off-grid solar confuse you?*
Check out my DIY friendly website for solar system packages and product recommendations, and so much more! www.mobile-solarpower.com
*Join our DIY solar community!*
#1 largest solar forum on the internet for beginners and professionals alike:
www.diysolarforum.com
Check out my best-selling, beginner-friendly 12V off-grid solar book (affiliate link):
amzn.to/2Aj4dX4
If DIY is not for you, but you love solar and need an offgrid system, check out EnergyPal! They will price out a system and get your house offgrid: energypal.com/diysolar/
*My Solar Equipment Recommendations (Constantly updated! Check here first):*
12V/48V Lithium Batteries: www.mobile-solarpower.com/solar-batteries.html
Solar System Component Directory: www.mobile-solarpower.com/solarcomponents.html
Complete 48V System Blueprint: www.mobile-solarpower.com/48v-complete-system-blueprint.html
Plug-N-Play Systems: www.mobile-solarpower.com/full-size-systems.html
Complete 48V System Kits: www.mobile-solarpower.com/complete-48v-solar-kits.html
DIY Friendly Air Conditioner/ Heat Pumps: www.mobile-solarpower.com/solar-friendly-air-conditioners.html
*My Favorite Online Stores for DIY Solar Products:*
*Signature Solar*
Offgrid One-Stop-Shop. Best Value 48V LiFePO4, Victron and Offgrid Specific Heat Pumps:
www.signaturesolar.com/?ref=h-cvbzfahsek
*Current Connected*
SOK, Victron, Mr.Cool Heatpumps and High Quality Components:
currentconnected.com/?ref=wp
*Ecoflow Delta*
My favorite plug-n-play solar generator:
us.ecoflow.com/?aff=7
*AmpereTime*
Cheapest 12V batteries around:
amperetime.com/products/ampere-time-12v-100ah-lithium-lifepo4-battery?ref=h-cvbzfahsek
*Renogy*
A classic 12V solar store that has been around for ages!
renogy.sjv.io/n1VjXx
*Rich Solar*
Renogy's biggest competitor! Similar products, but at a better price:
richsolar.com/?ref=h-cvbzfahsek
*Battery Hookup*
Cheap cell deals
bit.ly/2mIxSqt
5% off code: diysolar
*Contact Information:*
I am NOT available for personal solar system consult! If you wish to contact me, this is my direct email: williamprowsediysolar@gmail.com
Join the forum at diysolarforum.com/ if you wish to hang out with myself and others and talk about solar
*FTC Disclosure Statement and Disclaimers:*
Every video includes some form of paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense :)
DIY Solar Power with Will Prowse is a participant in the Amazon Services LLC Associates Program,
An affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com
Are you primink?
Lto study: www.google.com/url?sa=t&source=web&rct=j&url=www.mdpi.com/2313-0105/4/4/59/pdf&ved=2ahUKEwjYqcyS2OviAhVItZ4KHXlTAx44ChAWMAF6BAgIEAQ&usg=AOvVaw1lmPrKfdeaBh4aheqgxiiM
Did you also test the cells at a low discharge rate? Every Li-ion cell I have come across has a nominal capacity that is only attainable when discharging from 4.2 to 2.7/8 ish V at like 0.5A max. If you discharge it faster the capacity drops, if you discharge to 3.0V instead of further down into the high 2's then you'll lose capacity as well. I'd recommend, hooking up a product that draws max 0.5A from the cells and then measuring the voltage over time. You might be right that these cells are just rewrapped lower cap cells but they might be very sensitive to discharge rates when it comes to capacity. I know most 18650's are. Cheers!
they also dont look like the good yinlong cells. possibly why they werent as good. should pull the wrap off one and see what is on the case.
I agree with your assessment of lto I prefer lifepo4 also.
I built a 24v 120Ah pack (3 parallel 11 series) and have been using them in my van for over 8 months now. The pack works to specification and I'm perfectly happy with it. The pack can be mounted under the chassis as they can be charged below freezing and it saves on space on the inside of the van. I do not care they are heavier than LiFePO4, they are still lighter than lead acid. I do care that they are safe and will probably outlast my van and me.
I respect your efforts . You are taking the guessing out of the learning , making it affordable and safe for everyone. I hope that you are funded with sponsors,UA-cam and book sales .I'd hate to see you lose interest !
My boat dock solar system, since 2004, has used lead acid batteries. The first set of batteries lasted 14 years. Two golf cart batteries cost me $200.00. So far, no other battery technology appears practical for my application. The duty cycle is really low. The system powers lights and blower motors for two boat lifts. I have a 130 watt solar panel that cost $750.00 back in 2004. My total system including labor cost $3400 back in 2004.
I like the solar systems you show how to build for a few hundred dollars. Prices sure have fallen a lot since 2004. I recently had to change charge controllers. Currently using a cheap $20.00 one, until I decide which one to go with permanently. My 2000 watt inverter is original. The original batteries and original charge controller failed after 14 years. The solar panel still works great. I suspect today's technology is even better.
I thought your viewers might like some info on system reliability.
Keep up the good work. I really like your channel.
this is the point. Good lead acid batteries are good enough even when it comes to cycles (AGM ...) and way cheaper than everything that has lithium in it.
Lead Acid (PbSO
4) is still a great battery. Solar Charge controllers, DC-DC Lead Acid chargers, AC Lead Acid chargers and vehicle alternators are inexpensive, reliable, durable, and simple. A proper Lead Acid Battery Management System need only consist of a fuse!!! Can't get more simple than that!
Lithium requires more knowledge and understanding to use in a way that is safe and allows the batteries to last. Don't get me wrong it is certainly doable and not THAT hard and not THAT expensive anymore. But for a lot of applications (including yours) the main benefits of Lithium aren't especially valuable and their use isn't very logical.
@@kingrpriddick "and not THAT expensive"
When it comes to mobile homes, 100Wh PB-AGM vs 100Wh LIFEPO4 is 150€ vs 900€. This is massive.
Of course you cannot use the whole 100Wh on the AGM and the amps on charging are lower on the AGM, especially at the end of charging.
But still ... Just use 2 AGMs. Then you are still way below the cost of a LiFEPO4 and have even more capacity.
As long as weight isn´t critical, i see no point in using Lithium batteries. They are just too expensive. From my job i know: In critical server-farms or telecommuniation-masts, they also only use PB-AGM batteries. No lithium anywhere there ...
@@segoiii Yeah, you still need a cheap salvage or overstock source for viability at this point. But BMSes and pack assembly options are becoming available.
I find when FLA is kept trickle charged, isn't deep cycled all the time and is maintained correctly it can last a damn long time. The main failure point is when they undergo many deep cycles or aren't maintained at full charge as much as possible, which causes the sulphur in the electrolyte to coat the plates in the battery. It does eventually happen to all lead acid cells but the rate the sulfates build up varies depending on usage, charge cycles, and even the rates at which a cell is charged or discharged.
Will, I really appreciate getting to watch your videos!!... I enjoy the detail you go to in order to properly explain things... As simple as electronics CAN be, sometimes things get Complicated by the very same details... Those details are important... I appreciate that you appreciate that!!...
As my grandfather always said, there's no such thing as an accident... There's always a cause... When messing with dangerous DC current, it's important to recognize the details...
I’m glad to see all the comparisons done here, and it would be great if price of the cells could get into the scheme as well.
Hi my friend, I am Michael from China, we manufacture 5.5ah, 10ah and 30ah LTO battery and 350F and 3000F supercapacitors, if you need, please contact me by email, my email is michael.liu@@t, thanks.
Appreciate you trying new things like this. Always interesting to watch and learn without each of us investing time and money into it.
Thanks for clearing up the hype of these titanate batteries. This video is much appreciated.
I love your electrical tape jobs.
Peel off that PVC tape one at a time and replace with self amalgamating tape.
What a piece of junk
Siema gejmerze
Good to see someone doing a video with the newer and safer technology. Keep up the good work.
Something to keep in mind is how a battery's amp-hours are calculated... Companies draw 1A for 20 hours and calculate the Ah based on the depth of discharge after that (assuming >20 Ah capacity). So drawing a lot of current can dramatically reduce the overall amp-hours.
A major plus for these cells is the operating temperature range. -50 to + 65 is amazingly good. Pretty easy to kill your entire LiFePo pack if your heater dies on a cold morning. How expensive is that? Even with a low temperature cutoff you are out of business much below 5 C. The ability to charge quickly is also a very good feature for applications where the power source is fickle. I wouldn't write this chemistry off completely based on some possibly shoddy supplier. In general great videos Will. I think you have one of the best channels out there.
never heard of LTO batteries.. thanks for sharing
Cutting edge pro nice to see people that know about other lithium chemistries
I can see these used on RV's and Boats where you have 7-10Kw Generators that can quickly recharge the pack at the full 10C.
"quick"....thats the game
Great test! Thank you.
I have to say though, that was a punch in the nose with hoping we are having a wonderful warm weekend! I live in Australia, It's bloody Winter here Haha! I should say though, our weekend was a Sunny one, just not sure about the warm part lol!
Keep up the good work!
Cheers, Col.
Good job on you videos. I’m doing research for a project (sailboat to electric boat conversation) and your videos have been very helpful. Thanks
You're a good teacher... a joy to learn from! Thanks for all the great videos and I hope to see more!
perfect, will work wonders in my time machine.
I just love the size of these, they can be very intimidating!!! Great Video Will!!!
Thank you for taking a look at these cells. I'm actually aiming to build a battery pan out of these huge cells. Also, electrical tape is for electric projects, so I accept that too.
10:30 I see XT60 connectors hanging to the left of the screen.
its cool 😎
2:54 dude, u made me laugh out loud here. Hope you're having a wonderful Warm weekend.
Love your channel! I have learned so much!
Thank You for the info, saved a lot of searching and reading for me.
So the drawbacks are primarily that if you need a lot of amp hours, you need to overspec your pack compared to Lithium? I'm not sure if that's a deal breaker to be honest, even for RV applications. With loose cells you could construct interesting battery "boxes" that aren't box shaped, and they charge fast and can handle sub-zero charging and are even safer than ferrous phosphate. But, it's definitely worth thinking about before you go ahead, the cost up front goes up yet more and you need to dedicate even more physical space to the batteries. But at least in theory the idea of a second 24 volt 250 amp alternator on an RV or van, dedicated to and hooked up to an LTO pack that can guzzle down the full 250 without taking damage sounds pretty sweet. Running out of power? Go for a half hour drive to a café and you have juice again.
My NiFe batteries were certified to 100k cycles then the lab gave up. I know you are in love with lithium but have you considered looking at those. Also little/no environmental impact from NiFe, which isn't really true for lithium.
Great videos! Thanks for showing how easy it is to make battery packs. You have re-invigorated my interest in the subject.
Interesting, a mind with intelligence and insight that wants answers. Willing to experiment to find answers even if he fails. A young genius in the making. Your curiosity and insight will make you even smarter.
Great video! Haven’t seen much coverage of these, yet I have seen them all over alibaba.
thats goood
Thanks for the honest 3rd party analysis, I learned the hard way that most Chinese product specs are dubious to say the least.
Continuously amazed at the excellent content.
guy is legend
Cheers for informing us with Titanate :)
All of your videos are useful . You're promoting good products by exposing the bad and thus saving the public from throwing their money away.
👍👍
Round terminal connectors too small: just split at tip and spread and shape. Gives more surface area than clipping down to spade as you are doing.
It's just for the balance wires.
Seems like these could be paired well with the cylindrical 3000f super capacitors since they are pretty much the same voltage. Then you could have a pack with insane discharge abilities.
Super taser? Death Ray capabilities? I can dig it
Yea they do look a lot like the old Maxwell super capacitors and like you said pairing them up would really push some juice out... Then they would out last him and his grand children... Lol
new to your channel great video,liked and subscribed
Awesome information brother 🤙🙌
Thank you 🙏🙏
...They may take several charge/discharge cycles to reach full capacity, just like LiPo batteries.
oh..
You obviously didn’t get best grade cells. A pity but a good exercise though ....
You can charge them with 400 Amperes ^^
These are for energy sucking applications. Like a ZVS foundary. Or a Desla for the yongster...
wow
Thank you for your time to make this video. It answered many questions, and more. Before viewing this, I had decided to
wait for further development.
Awesome review, thank you!
Good video, I understand theres is safety in them, however still from Aliexpress or even harbor freight you have to be extra careful. Some the specs are not so true so always be-careful as you are very smart Im sure you do not over look it but also to others
Your use case would fair better with a more complex battery made of these cells. Something like Xp12s with a dc-dc psu. One that takes a wider range and puts out a constant voltage like 13.8v. Surely, a user programable bms is mandatory, to set the high and low tresholds and over-current limits.
Because their high internal resitance, going for a higher voltage will enhance the ammount of availabe energy.
Pașca Alexandru i agree. Other DIY guys tested/abused LTO cells to even up to 3V/cell and they said it was going strong. And come to thing that the cut off cell ob thw data sheet is 1.5V /cell.
The high charge discharge rate make these ideal for powering the next generation Flux capacitor
3:03 And that's why DIY battery packs sometimes start burning. THE BMS cables are the most common reason for this. Because they have to be as well insulated and beautifully laid as the main cables.
I only had the balance leads that way for the test. I wouldn't have them like that if this wasn't a one time test
You could make a really big Mag-Lite with them🔦
Yep! That could power that flashlight for a long time, if it didn't short out
Or vibrator.
@Robert Slackware What would make her hotter than flames?....lol
Do you have the ability to test the power and energy densities? How does it compare to other chemistries?
@2:54 "It looks like a bomb but its not..." LOL I was thinking of that when I first saw the batteries for the first time.
Thanks for reviewing! I think they might have some niche applications. I can imagine a solar setup in a valley or recess where the sunlight only reaches for a very limited amount of time during the day but still does so reliably. High c charging could be a big benifit for a limited battery capacity system. The cost of solar panels of many systems is not really the limiting factor. The insane amount of charging cycles would make sure they pay for themselves over half a century! Regenerative breaking systems seems like another.
This was a great video and fun to watch, but I still think it needs a timer that counts down.
Lol
What do you think about a bigger supercaps bank? I use 4x of 16V 6x500F powercap banks with BMS boards 4x38$ (2 in serie and 2 parallel) and a 4000W 24V Pure Wave inverter @30V. I run 2000W water cocker without any problem. Here is no extensiv batterie.
Thanks for all your videos. Best greats form Germany.
This looks amazing! Thanks !
For the bms you can ask the factory directly to make it 6s or what ever and they can also set custom cutt offs and such.
One of the gripes with most lithium batteries is how long they take to charge...but with the LTO being able to charge safely at least at 5 C, then could you maybe used them as a front end charging "buffer" that could be charged up fast, then used to slowly recharge a more a more conventional Lithium battery bank which would then run your devices, inverters, etc rather than the LTOs.
A DC to DC charger from them to the others?
@@Colaaah Yup. I've read of people doing similar things with supercapacitors, which can be charged instantly, then charging a battery from them.
Personally, I would then go full supercap or even ultracap for such an application.The ultracaps have a much higher efficiency rate than these cells and if you only use it as a buffer then the caps are a perfect solution. These LTO's have the capability of storing energy for a long time and you don't really need that.
Is C for capacity? In your 5C . Also what 6S means. 6 Cells? Why S
solidfuel86
Yeah if you can charge them at 5C it means a 10Ah cell can be charged at 50A, ie full charge in 12 minutes. S means series, so a 6S pack is six cells wired in series. Similarly, P is parallel.
"Looks like a bomb, but it's not" hehe
Lol he should take that out in public somewhere just to watch reactions
Thats what my parents said when i showed them some 18650s from a laptop battery XD
@@bumstudios8817 wearing body armor though! ;0)
Chris Sproles z
Thanks for that information. Great job.
Interesting experiment. Thank you.
Interresting batteries, to a house power bank it looks very nice due to the high cap charge cycles. You make an 20kw power bank for a house and it will last 20 years or more. Efficiency is not that important, you can compensate by buying 15% more capacity :).
My thoughts exactly. For a stationary application just use more cells.
So it's bigger... Who cares?
you're not trying to carry it around. And once it's done you can basically forget about it for a generation.
Thought the same!
Really iteresting technology!
Only downside is the price...
20kwh battery-pack would set ypu back 15-20grand...
Thanks to you, Will, I have found the perfect battery to complete my suspended animation hibernation pod. See you in 2073. LOL
Yes!
Personally I'm going to use it in my Doritos time machine !
Let's all meet in 2073 ...
@@00708046 Futurama!
It's been 3 hard weeks but finally finished painting my Nissan Maxima-olorian. Now I'm just gonna wait for traffic to die down and I'm gonna punch it to 88mph ... 137 on the stock instruments. See you both in 2073!
I've been using these for 5 years complementing my small system. They help with voltage drop on very large startup loads!
makes a great spot welding power source!!
That safety, charging speed and life-time is amazing.
It could be useful if we change how we plan our solar layout.
If we can charge our entire house worth of power in just two to four hours... cause now we basically plan it to get enough power to charge over an entire days worth of sun.
i m looking a chemistry that can charge like 12V 300A do you know any?
exactly
It may be perfect for a solar charged, night-time security motion detector/lighting, using LED bulbs.
a great utility
I think they really make sense for the solar energy storage. The fact that they will last 25 years easily, really makes them competitive, even with lower end to end efficiency. Of course when they are labeled correctly :D
Brilliant job!! Thx for saving us all time and money. You da man
Meet me after 56 years with these cells 🙀.
I'm pretty sure thamt it said 54 yearms
By then you’ll probably have upgraded to graphene batteries or even cold fusion technology
😆😆😆
Keep them coming we want more videos 👏👏👏👏👏
thanx for the review! was considering these on an ebike project, but due to their low voltage, a high voltage pack would just take up too much space....cheers!
Stay away!
"I don't really think you need 20,000 charge cycles" that sums it up. With the high charge rate I think these batteries would only be good for a golf cart that had all day use everyday on another planet that could never be resupplied. Still cool batteries though.
Damn, bro. You know your stuff. Excellent presentation.
Great and informative content as always Will, you are educating the world!! Always good to learn something new on your channel
Good video! Question: Could I charge / discharge those batteries at - 10 celsius / 14 degree F without damaging them? I rly love ur videos!
Well, I think it's a cheap, badly produced battery, LTO batteries should work fine and be over 95% efficient discharging. Some high quality cells will make a big difference in your performance!
may be ..this sample was from some cheap...lot/
?
Your link for AliExpress is for 30Ah cells.
So what batteries were used in the Opportunity Mars rover that lasted 15yrs?
Great video, always interesting
These batteries are a bridge between batteries and capacitors.
You're getting a little from both, but the best of none.
They last long and are unlikely to start burning or exploding. To me this is useful. Ultracaps have a lower energy density, or not? Also their voltage drops while uncharging?
@@sevdev9844 has anyone taken these apart? maybe theyre supercaps with a small battery on the outer edges??
Dianne McCarthy
No they’re not. The graph clearly shows that they have very little voltage drop as they discharge. Supercap’s voltage drops in direct proportion to their discharge.
🌤Hi Sunshine, sounded good in the beginning but the truth lays in the results. Thanks for the heads-up..
Thanks for the continuous updates, considering the maximum charge voltage, and minimum discharge, for nominal 12Volt batteries it would take a 6S and cells in series, let's say a 16/16,8 volt charged and 10/10,8 volt discharged, it would be better to exploit the inverters limiting the charge voltage at the maximum accepted by the inverter logically, so it does not switch off due to low voltage before having not finished the battery capacity
Exactly
Matched these with a UPS 24 volt. They worked great. As the UPS is a Pure Sine Wave...And the charging rate on these is insane. You can charge these up so fast using solar.
Will Prowse “Using his brain so you don’t have to.” Thanks Will cool stuff👍
So charges fast, lots of discharge cycles, safe, but a little screwing around with balancing, and capacity is less than claimed but still decent? I like them.
How about lithium ceramic batteries? I want to see some tests of those done by *Will Prowse* Id also like to see you design and ride an ideal electric bike, I just know you could build an amazing one for cheap (and sell lots of parts for them if inclined)
I'm glad I watched this, I was wondering about them and what you thought about them the other day, I was considering maybe trying them, I think I will pass after what you have found out about them. Thanks man.
Another great vid Will. I’m curious to see some experiments with LTO/Caps/(lifepo4 maybe) in series on the solar side (or both sides) of an all in one system 12v-48v systems to see what difference it could make during sudden shading effects and overall extra power to main batteries for extra after dark power reserves. A high voltage bank with another new age type controller to suck them down to a low state of charge and continue to charge the main system batteries after sundown could have some huge advantages in generating greater power from any solar system. Luv ya vids from Australia.
Use the discharge inefficiecy to your advantage... Like if you live in a house that most of the time requirs heating... Solar charge them during the day and then while using power at night they are also heating your house.... The inefficiecy will always be given of as heat.
Smart!!
Seems like a good idea, two birds with one stone. Could put the batteries in an enclosure ducted to a heat recovery unit. That way if anything goes wrong with the batteries the gasses are kept from entering the house. Quick calculation looks like we're losing 15% of a 10kw battery bank to heat so about 1500w total or about 5120 BTU... per discharge cycle.
So really, not much heat production at all. I dont see it being a feasable option for a standard house for even offsetting other heating by a appreciable degree.
"it looks like a bomb", LMAO
Looking at buying 44 - 40ah LTO batteries for 160ah total. Where I was considering lifepo4, these can be charged in freezing conditions.
The drawback is managing their charging at 2.8v and discharge at 1.5v limits, with equipment that won’t work with too much or too little voltage.
As my Trace DR-1524 cuts out at 31v, so while charging 11 batteries with 2.8v = 30.8v this arrangement keeps the inverter from rejecting the battery while it’s being charged. Whereas 12 cells will require charging that’s too high causing the inverter to quit.
Conversely, this DR-1524 shuts off at ~21v, leaving about .5v in the LTO that could have been utilized but isn’t by the inverter.
Which is not a problem as my trailer’s configuration uses a 24-12 switching buck converter for backup lighting and refrigeration control so those loads would be there at the bottom of the battery’s useful range when needed.
Because having to configure a means to automatically heat the lifepo4 cells before they can be charged, is quite involved, this makes the LTO easier to implement and a more attractive choice for my installation.
Downside is the BMS needs to be sized for 11s.
Though 20,000 cycles means this is the last battery I buy.
The question is, should I purchase 6 extra cells for another 12v system that eventually could be cannibalized should trouble with the big main battery occur, as I’d have the same/aged cells to patch in for the failed ones?
'It looks like a bomb, but it's not' haha, awesome vid as usual Will.
Great video! I didn't even know about those batteries, I like the lifespan of them, how are they for charging below freezing?
You can charge them down to -40 degrees celsius/ fahrenheit
On the cells it say 40 ah. but on the website description it say 30 ah.
That is their updated listing. Just checked. Must have been caught for selling improperly labeled grade b cells
Nice review Mr.its very informative
Thanks for doing this one...WAS considering them
That battery is the ABSOLUTE BOMB 😂
"this is not a bomb" xD
There's at least one (negative) comment mentioning these are only 30Ah, not 40Ah as advertised on that aliexpress listing now. Great vid, saves me doing the same experiment, much appreciated.
Been waiting for this...
He: Looks like a bomb but its not
FBI: I am going to end this man's whole career
Geezus Capt Science. I swear give this dude some money . we'd be on Mars in no time... You kick aas n take names Will..
Fortune favors the bold
Safety came up a couple of times here. How about lesson on safety measures to look for various environments? Until yesterday I didn't know that some 18650's have some kind of built in safety measures and some don't. Haven't dived deeper into that yet. And I've been wondering about the safety of the various power stations you've reviewed (Jackery/Goal Zero/ExpertPower/Rockpal/etc) - are they safe for unattended charging for vanlife? I know some things have fans, but if heat is a problem why don't we see heatsinks on any batteries? So many questions?
Thanks for the vid 🙏.