12V Lithium (LiFePO4) Masterclass - Everything you need to know Pt1

[@CalaisRider]

Greatest presentation I've see on Lithium batteries. Thanks for taking the time and sharing your knowledge

[@jasonyannuccelli2499]

Mate I love the level of detail you put into your videos. For some people it might be too much but for my brain it’s like good food thank you so much 🙏

[@Price-Williams]

Ecclesiastes 9:10

[@peterreisinger3459]

Everyone with lithium batteries should watch this if you want the best life for your batteries. Awesome information!!

[@darrylmunro96]

Most informative and concise explanation I’ve see so far. Extremely well presented, supported with easy to read and understand graphics. Keep up these awesome videos/topics. I just went out and brought a 120 Kings lithium battery because I felt better informed about the product and felt the price was more appropriate than competitors. Well done!

[@odnewdylee]

I operate a lot of equipment out of my work truck. This is the only channel I can find with similar topics. Thanks for the videos.

[@0guiteo]

Thanks. This was very informative. I live in New Jersey - and it occasionally gets pretty cold here. I keep my LiPo battery in the basement along with an AGM and an inverter (and a bunch of other stuff) in case of losing electricity. I really learned a lot from this presentation, including not keeping the LiPo battery on the trickle charger like I do with my AGM battery.

[@Funcentric]

This was all very good and very relevant. I learned more in less time with your video than the previous 20 i've watched. Good job.

[@gwynneclark6372]

One of the best description of the difference between lifepro4 and agm batteries ,very well done and thank you for sharing your knowledge .

[@1989cranston]

There are literal electrical engineers videos explaining it and you somehow think 4wd supacentre made a better video hahaha. Hilarious

[@gwynneclark6372]

Nick Cranston I can’t see any of your attempts of explaining any thing ,your comments I find to be offensive please keep your silly childlike remarks to yourself .

[@captainbabossa2628]

I’ve been trying to keep my lithium at a 100% Wrong ! Now I realised; thank you for the great video 👍👍

[@youreanuncoordinatedcuckcu7812]

Clear, concise and well illustrated. Thank you.

[@justcruisin109]

This was very informative. Appreciate the effort you went to to make this. Cheers

[@tillsy23]

I got my 120ah lithium kings battery today it had a note saying they're charged to 30% for shipping reasons, was amazed how light weight they are! Looking forward to see how it performs over the years

[@gregclaydon6727]

Best presentation I have seen to date..very knowledgeable and easy to understand..thanks

[@jeoffer]

Best explanation I have seen.

[@jb7702]

Great video. Thanks. Did you do a Part 2?

[@michaelsweeney3241]

This bloke knows what’s up!!

[@michaelsweeney3241]

I’d love to see a tear down video of these batteries

[@MJ-yv9il]

Pity it has such low discharge rates

[@samartz]

Wasnt going to watch this but learnt a lot!

[@slaavichii1129]

Kings Lithium. Sold. Awesome channel

[@fatmanoverlanding]

Great stuff 👍 Now you just need to also sell high quality battery boxes with built-in high quality DC-DC Chargers and MPPT Solar controllers. A much better quality than the flimsy basic battery boxes you currently sell. This is an opportune time for me, as I'm in the market for a lithum battery to replace my disasterous BainTech PowerTop V3, that only lasted 18 months. So I hope you also have a new range of better quality battery boxes coming. Including for the 200Ah Lithum battery you have shown here. 👌

[@javahead8]

Terrific comprehensive lecture - full of info.

[@clarkvalcoic1736]

Fantastic informative video , Has all the info I needed but didn't know how to ask for.

[@AlpeshPatel-jh5ti]

Love the series of videos. Really well explained

[@ripperracer]

My equipment installed Kings lithium 120 amp Battery Kings 25 amp DC DC charger mk 2 lithium Kings 160 watt semi flexible solar x 2 in parallel Victron 712 Smart Battery monitor Question - should the DC DC charger shut off when 13.4 volts is reached as this is what you have recommended in the video, it's currently at 13.55 and still putting power into the battery.

[@danielb8901]

Fantastic explanation the best I have seen congratulations.

[@pearcey1113]

Thanks for the information great video, I just rang up and brought the 200Ah my mate told me it’s the best battery and great for the price on sale for $800 I’ll let you know in a few weeks or months what it’s like, cheers

[@rogerbarker165]

Cheers mate, that explaination was brilliant !

[@HammerRocks]

A superb and extremely informative video. Learning about the different compositions of Lithium is handy. 👍Are you also releasing new battery boxes to fit these new range. Interested in the 200Ah but would look at getting a battery box with it. Having it with a built-in DC/DC charger would be enormously handy too. 🤞

[@4wdsupacentreAu]

Hey mate, No battery box yet, but stay tuned on our website. I'll let the team know of your interest! Talia

[@HammerRocks]

@@garyreed354 Do tell...

[@joevanniekerk2858]

Like to know what the possibilities is making a video open up a 100AH /200AH Lithium battery to show the internal Bms,wiring and the general workmanship?

[@PandorasBox2]

damn one of best video ive ever seen about lifepo4 tnX man

[@robbief1]

Excellent Video - Well Done! Gives you the sense you really know what would make a successful / reliable battery!

[@Doug4651Mac]

Great video. I have a question about storage. I have a 120ah Lithium installed into my canopy that is permanently hooked into a DC to DC charger. When on the road (Caravan hooked up Ect) I have a 75 Ltr Fridge and use the connected inverter often. When I am home and using the car locally, the fridge is turned off and there is nothing running off the battery so the DC to DC charger is still topping up the battery each time I run the car. Should I consider unplugging the DC to DC charger while only travelling locally without anything draining the battery?

[@TrickedHat]

I think the dcdc charger will just not charge it if it's full

[@andrewvillavicencio8496]

Excellent explanation, thank you!!

[@4wdsupacentreAu]

Glad it was helpful! Thanks for the comment! Cheers, Cahn

[@nickhayley]

I came looking for the state of charge voltages for lithium batteries, expecting it may not be covered. I was pleasantly surprised.

[@LiquidAudio]

Really great video guys, loads of useful tips there.

[@brucemcnair2]

Great presentation. Thanks

[@garywinkworth3380]

explained beautifully thanks mate.

[@jerryallen34]

Excellent and thank you for taking the trouble to put up such an informative video.

[@fozzy1000]

Very informative! How can you tell when a LiFePo4 battery is either 90% charged and 90% discharged.

[@johnmettam1573]

Excellent video and information

[@BM-wi9kt]

Thanks for video. Pity the kings ebay store are pairing the 3000w inverter with the 200a battery where it should have 2 x 200a battery to cover the current draw. A 2000w would be better matched. Thanks again

[@moolkau]

Great video. I've since bought the Kings 120ah Lifepo4 battery. Since the kings mppt charge controller isn't compatible, are you able to list the recommended parameters to use with another MPPT charge controller? Most importantly- Bulk Charge Setting: ? Float Charge Setting: ?

[@rodgerames677]

Buy a Victron

[@BrentsEpicTravels]

Great overview and one piece of information I would really appreciate is how to keep the lifepo4 below 30 degrees when sitting in a parked vehicle on a hot day. Specifically, I have a 120 amp lifepo4 in a battery box I built supporting 12v/240, MPPT, DC-DC charger, inverter, shunt etc. The one challenge left is how to keep the battery cool when parked on a hot day. I've thought about using a closed circut liquid cooling system used in gaming PCs, or perhaps an evaporative portable cooling system. However each of these solutions as problems/limitations. Any ideas on a suitable cooling system that I've proposed or something else would be greatly appreciated.

[@JoelTheGamer]

Is your canopy insulated?

[@BrentsEpicTravels]

@@JoelTheGamer Hi, thank you for the reply - I'm thinking about a passive cooling approach such as the insulation your suggesting. The box is in the back of a Pajero Sport (so no cabin). However, I looked at a company in QLD that custom makes quality solarscreens for all windows for about $400 so I might go for that option first as it would handy the whole vehicle cool anyway and not just the battery as there are other electronics such as fridge, computers etc.

[@JoelTheGamer]

@@BrentsEpicTravels that and seeking shade as often as practical would be the most effective. You could try and insulate the roof of the cabin if heat is still causing you issues.

[@andyjack2368]

nice video my question is how will lithium battery work out side in cold weather working runing power told on job side

[@danc8946]

Awesome video and great to see Kings getting into the lithium tech! Are you going to release a solar blanket that will work with lithium batteries in the near future?

[@4wdsupacentreAu]

Hi Dan, There are no current plans for this, however we appreciate the interest! Hopefully we can add this to our range in the future. Talia

[@sky73x]

I use a Kings solar blanket with a Lithium battery no worries. Presuming you've got a DCDC that doesn't have solar input? Lithium battery + Solar blanket/panel + Kings 25A DCDC is what you're looking for. Ditch the MPPT controller that comes with the solar and use a solar compatible DCDC.

[@aussiefox2000]

Can you use the normal kigs battery boxes with the lithium batteries?

[@4wdsupacentreAu]

You sure can! Cheers, Courtney

[@simonwaite5815]

Great presentation with a lot of info to absorb. The percentage charged is confusing and its impact on the BMS. At 10 volts my BMS shutdown, but the battery protection on the Kings 90l fridge goes as low as 9.6 volts. I used this, and appear to have killed the BMS on my new 120 AH LiPo4 battery. Even on the high setting the protection shuts off at 11.1 volts which is (according to your chart) about 10% discharge of battery capacity. The battery I purchased from 4WDSupaCentre had no documentation with it, is this normal? as I had no real idea of the problems I have caused myself- now I need a charger with a 'wake up BMS' function. Cheers for the presso.

[@sandspiral2009]

Thanks, this was a very informative vid. Don't forget to mic-up your presenter for the next video - this will eliminate the boomy echo, which is a bit of a distraction... :)

[@MrGundawindy]

Looks like he had a mic on his collar. I think it might just be the big mostly empty room.

[@coryanderson2371]

So which one should I go to the ones you're talking about and I guess so that part panel is I'm putting on my truck and I'm gonna watch eand I haven't got a black cheek and I haven't got everything done yet but I haven't got batteries yet either let me know if you get Your show is great and I like it I get to learn more

[@andrewthomas2794]

Thanks this was the best video I have seen explaining lithium batteries and the different chemistry. Does the BMS in a KINGS 12v 300ah LiPO4 battery allow 2 of them to be connected in series to give a 24v output at 300ah?

[@grahamwhittaker8844]

Thanks for that , awesome clip ,much appreciated 😊😊🐕‍🦺👍🍺🦘🐨🇦🇺

[@lukerobins6850]

Great video. I was hoping to get more detail around charging. I have the Kings 120 AH Lifepo4 and a kings 25A DCDC charger and also a victron 12/15 smart charger. I'm wondering firstly, is it ok to leave my battery permanently connected to the DCDC charger? I've tracked the voltage supplied to the battery when fully charged, and it seems to supply more of a absorption level voltage (14.6V if I recall correctly) when I'd expect more of a float charge, say, 13.4V. Is the DCDC working correctly? Also, what are the best bulk, absorption, and float charge voltages for these batteries? I find the package insert with the battery was low on detail, and indicated a very high float charge, over 14V as I recall. Any ideas out there? Would love to hear from the channel on this. 🙏🏼

[@warren.waters9930]

Great info i need to replace a 170amh slim battery i have 120w solar a 25amp redarc dc/bc charger. Running an old engal would 120amp slim be better/less weight

[@steveturton1425]

I’m using a Redarc BCDC 1225D charger. I know it will charge lithium batteries but possibly to 100%, will this be a problem and significantly reduce cycles?

[@jdoe4548]

perfect explanation

[@blairvigil1633]

I learned something today but its still alot of info question what battery type would be best for a class 8 truck in North America to run a A/C system and heater and other hotel loads we can be in 120 degree weather one day then go north to -40 bellow zero so what battery bank would be Best???? Thanks

[@Leerox1]

Quality content, brilliant!

[@jdfloats]

love to have these fitted to my new mt1 camper

[@4wdsupacentreAu]

Hi Dave, Feel free to get back in touch with your trailer rep, they might be happy to help you out. Talia

[@CrazzyRandy]

Can you use Lithium battery in the engine bay as a second aux battery instead of AGM? Is temperature a problem in engine bay?

[@lucysoutdoors]

The term drop in battery=== means can be charged by a standard charger on agm cycle..

[@jacquesb5248]

would the bms in those kings batteries take care of charging them fully or to 99% and same with discharge?

[@WesternAustraliaNowAndThen]

Very interesting and informative.

[@HORTOJM]

Quick Question, can you put 3 of these in Parallel, say in a camper trailer. If so what are the minimum/recommended charging requirements? ie amount of AMPS? Thanks.

[@davesmith5855]

Sweet AS !

[@MichaelRowell-i2k]

Hi there Cahn, should I fully charge (100%) my new 300amp lithium kings battery before I start using it and then keep it between 80% and 20%?

[@ticasse999]

2:52, polymer électrolyte never really went anywhere. The problem with the name began when some manufacturers started reffering to cell that had a polymer packaging, namely pouch cell, as « lithium polymer » cell. This became confusing, as this cells didn’t realy have polymer électrolytes, but instead had liquid électrolytes and an external polymer packaging. So now everyone call pouch cell lipo. Polymer électrolyte (dry electrolyte) never made out of the laboratory because it didn’t conduct electricity very fast at ambiant temperature and needed to be heated a lot to work properly.

[@ryanminer1253]

Great video very helpfully. I have a question you Mention about hooking it up to a DCDC charger. I have a DCDC charger which is not a dedicated lithium DCDC charger will it support this battery or do have to change the DCDC charger.

[@michaelmain9935]

Gosh, lots of very complimentary comments below. Why is it then that I lost understanding at the 10 second marque? Do these batteries have a on / off switch?

[@waynasfamilyadventures147]

Who is the manufacturer of these?

[@adrianford1971]

I’ve got 2x 209ah lithium batteries and both after a day charging off a 250w solar panel separately have tested at 13.2v. Will this still be ok to run them in parallel at this voltage?

[@janloots52]

Can i use it in a ups, as mine with the battery (lip) only lasted just less than 2hr. Running a wyfy router and optics. cable box both about less than 2 amps.

[@big5astra]

Hi Cahn, great presentation and explanation - well done. 2 Questions: I have 2x 120aH LIFEPO4 Kings batteries. I've been looking at a simple LIFEPO4 charger that runs at 14.6 V (20A) but does not have a built-in tailing off of the current towards the end of the charge cycle. Is this Ok and will the BMS take care of the final charge time to reduce current from the charger? 2). How can you regulate the LIFEPO4 charger to stop the charging at say 95% full level? Do you need a sophisticated charger to do this? Thanks!

[@4wdsupacentreAu]

What chargers are you looking at - if it’s lithium specific it should still be ok Lithium doesn’t need a tailing current it just need constant current (bulk) and then constant voltage (absorption) which will naturally tail off as battery voltage gets closer and closer to charger voltage and eventually equalises. At this point (or near this point) the charger should switch off As for the second question yes you’d need a programmable charger where you dictate the final charging voltage! Cheers, Cahn

[@jordanbeel896]

Be good to actually see one pulled apart and be able to verify the claimed quality/durability

[@garyreed354]

Look them up this plenty of sites to do tests on them

[@jordanbeel896]

@@garyreed354 nothing that I can find that shows a kings one pulled apart.

[@jesseheise7579]

Life batteries have been around for so long, I've got a remote controlled car that's 10 years old with a life battery, it doesn't make sense that these have been avoided for so long

[@frankpost8296]

500f capacitor inline it will start any 4x4. 1000cca also it will charge from your alternator at 14.5v

[@cyclomad]

Hi , can I connect the 120ah and 200ah lithium batteries in parallel and run a 3000w inverter from the battery bank?

[@miro_s]

Thanks for the excellent video. I’m used to AGM batteries for motorcycles. As they can sit unused for weeks, I constantly keep the battery under trickle charge. I’m confused as to what is best practice for LiFePo4 batteries in the same scenario: leave them be (anyway they have low discharge) or use a specialised trickle charger? And in the second case, some chargers have a specific “LiFePo4 mode” others just a generic “lithium mode”. Are these different? Do I risk damage using “lithium mode” for LiFePo4 batteries? Thanks for any help.

[@bruceskousen5451]

You are not going to damage your lifepo4 battery with a conventional charger. It just might take longer for a full charge. Some chargers have an equalizer mode. Lifepo4 batteries do not need/use this mode. Sometimes the equalizer mode goes above 14.6 volts, which isn't good for lifepo4 batteries, but the battery's BMS should shut down any charge input once the battery is fully charged. If you plan to not use your lifepo4 battery for a while, it's best to keep it at 50-80% charged (50% is the ideal range).

[@nordic5490]

@@bruceskousen5451 you should definitely not charge a lithium iron phosphate (LFP) battery with a conventional charger. Charging above 3.4v per cell will shorten the life of that cell. The conventional charger cannot monitor individual cells, amd will not balance the cells. What happens is, not all cells are equal. One cell will reach the max allowed 3.4v before the others. However, the total combined battery string voltage has not yet reached the 'max battery voltage, and the charger keeps on going, when it should have throttled back. Now that cell goes over voltage. Because that cell suffers degradation, its internal resistance can increase, and its capacity to take charge decreses. Both things lead to the 3.4v being reached even quicker next charge cycle, even earlier than last time. Eventually you have a dead cell. I know someone who did an ev conversion 10yrs ago, and I asked him why he hadnt installed cell balancing during charging (standard fare for Lithium anything in the RC world). "The kit supllier said it wasnt necessary". I warned him about wrecking a cell quickly, and that was exactly what happened. A very expensive mistake. We are talking several $k.

[@bruceskousen5451]

@@nordic5490 a conventional charger is NOT going to hurt a lifepo4 battery. It’s just not very efficient. The BMS in a lifepo4 battery has overcharge/overcurrent protection built in and will shut it down before any damage could occur, unless, of course, the BMS is defective…

[@PenelopeCross-m5s]

Sorry, what were the volt levels again that’s depict the charge percentage, just so I remember where it should be at when storing around 50% Cheers

[@4wdsupacentreAu]

Hi there, For 50% charge the voltage should be at 13.05. Cheers, Courtney

[@johnx9318]

Mate. That was a bit good! I don't suppose you have a fact-sheet on the 120a unit? I am after the numbers to put in for a Victron charger. Thanks for this video!

[@4wdsupacentreAu]

Hi there, this information is found in our manual for the premium MPPT regulator under Default Lithium settings. The batteries use the F04 setting. We hope this has assisted

[@johnx9318]

​@@4wdsupacentreAu Thanks - I found the PDF with the numbers!

[@kingchief4038]

Would you need an AGM as a second battery plus a lithum portable battery or is that overkill for running a fridge.?

[@VideoShowMeHow]

Some good info here - thanks for the upload guys! Any plans for other size/AH in the lithium range?

[@martyntemple9135]

if I have a 25A kings dcdc charger mk2 but it is currently hooked up to an AGM, can I remove the AGM and replace with a Lithium by changing the wiring to the grey wire on the dcdc charger? or is it fixed to whatever battery type you first set it to (in this case the AGM configuration) and would I need to buy a new dcdc charger?

[@francismcclaughry3794]

my question will they hold charge over a period of time? I have a lithium battery actually two. an Echo flow with two batteries. so far I have not have had to charge it. my camping is in the in the summer. I do keep most of my batteries charged with shore power.

[@paulpurcell5658]

Can they be used in a tiny house application Paul

[@JOSHJJ807]

what about running 5 of those 3.65v cells and having the charger cut once it reaches say 14.8v 85%+- in the interest of having more "storage" and a more stable voltage for longer or would this eventually start damaging things if it doesnt see 18v every once in a while?

[@robstone4537]

If you go camping 5-6 times a year and each time you do, you run your battery down completely flat it is still going to take you 20 years to destroy an AGM battery.

[@0Uaex]

considering they have a shelf life of 3-5 years, it wont last 20years.

[@robstone4537]

@@0Uaex Yeah well that’s exactly the problem isn’t it. The shelf life is going to expire on your battery a decade before you kill it with the number of cycles, so number of cycles is a pretty useless metric for most people.

[@ShanoShanmugalingm]

Great informative vedio. I am interested in the 200Ah battery. Does the current DCDC charger support this? Also it would be great if there is a battery box for the 200Ah battery.

[@glenwillem9627]

Cahn I'm going to charge my 300ah kings lithium purely off my 160watt panel, once I have set MPPT regulator to max charge voltage of 13.4 volts or 90% do I need to disconnect panel when battery is charged or can i leave everything connected and regulator will manage charge on/off as required

[@4wdsupacentreAu]

Hey Glen - if the MPPT has a lithium mode make sure that’s selected and yes you can leave it on. The regulator will “regulate” the charge that the battery requires so once it’s full it will taper off charging… if you start using the battery again it will charge again as required! Again just make sure the MPPT is set for LiFePO4 (if it’s a kings premium MPPT you’ll want the “F04” battery setting! Cheers, Cahn

[@bradprior9701]

Be good with a battery box with all the Anderson plugs

[@CMWobby1]

If as you state it’s better to only charge one’s lithium battery to 80% how if it’s attached to a lithium battery charger and a solar controller, and B2B, both of which in my case are Victron, can one limit the charge level. My Kia Niro has the ability to set charge limits but that doesn’t seem to be the case with my Motorhome leisure battery.

[@lordcmdradama3969]

Good video, what’s the warranty on these batteries - nothing listed on the website. Thx

[@4wdsupacentreAu]

Hi AJ, The product comes with a two year warranty! Talia

[@jasonjjj43]

wow...they are coming

[@merkel2750]

Do you have any charge profiles available for us to go over?

[@Seanparky01]

Can you connect two of those lithiums in series or parallel. Just wondering if the bms wikl work

[@4wdsupacentreAu]

Hi there, You sure can! We would recommend them from the same batch. Regards, Courtney

[@benchampion4086]

Would you recommend a Lithium battery for a camper or small trailer I live in South Texas where it is hot 90% of the time.

[@DasGav]

i just bought the 120ah and battery box, im wondering how do I tell when its fully charged? so i can then start using it? i have the 25amp dcdc and will have it wired in as a 2nd battery with solar

[@4wdsupacentreAu]

The DCDC will indicate the battery is full when it starts a slow flashing pattern on either the alternator or solar light (whichever is connected and charging) So it stays on for 2 seconds then off for 2s You can start using it anytime really - the usable voltage range is ideally between about 12V (10% remaining) and 13.6V (100% charged) As a note while it is actually being charged it’ll reach about 14.5V max! Cheers, Cahn

[@DasGav]

@@4wdsupacentreAu thanks Legend!

[@petervanoosterom2794]

Can these be used as a drop in replacement for a lead acid/agm battery with having to change voltage regulators and chargers given it has a built in BMS?

[@4wdsupacentreAu]

Hi there, With battery systems such as lithium you do generally require an extra level of compatibility in matching batteries and regulators. Cheers, Courtney

[@markillingworth1929]

I'm using 2x138 a/h in parallel for a small fridge and a medium sized freezer. The batteries are showing 12.9 when charged and 12.4 in the morning so on the cloudy days I'm struggling to get them up to scratch to cover the night time usage. What size lithium ion battery would replace these AGM 's and what sort of time could I go between charges to compensate for the clouds or rainy days? Thanks.

[@4wdsupacentreAu]

Hi there, While we would advise on using Lithium Iron, such as the ones in our range. You would be pretty comfortable suited even with 120AH lithiums to replace them as they have more than half again the functional capacity of the 138ah AGMs so you'd see triple the coverage baseline. Regards, Andrew

[@markillingworth1929]

@@4wdsupacentreAu Thanks for your help.

[@collowood]

How do I set up a solar panel with the 200ah lithium battery please 🙏 😀.

[@qchatgreg]

having difficulty finding details on the BMS ratings as used in your 120Ah 12V liefpo4 battery. speciifcally i want to hokup 3 in series to power a 36V trolling motor for a boat. im aware the BMS voltage rating has to be suitable for >36V in this circumstance… pls advise details for the BMS. also any recommendations and suitability for using above battery in a series configuration. (perhaps a future video topic -musing lithiums in series and parralell) thx

[@petebrett1]

Hi, what bulk and float voltages would you recommend for a solar mppt charger ? I hear lithium batteries dont like to float charge...Victron 75 15. cheers, Pete

[@4wdsupacentreAu]

Hi there, For our batteries at least, you'd be looking at 13.6v for float voltage, though most regulators should have an F04 lithium batteries, though normally they don't have a bulk set value from the presets I can see. Regards, Andrew

[@davidwicks8054]

You say that if you use the Lifepo4 battery from 100% to 0% repeatedly you would get 3000 cycles. Does this then mean that the AH rating of the battery is useable capacity ? ie @ 80% DOD