Nissan Leaf Battery Modules Repurposed in Solar Energy Storage

[@InnovativeSustainableSolutions]

So much value in these old Leafs. You squeeze every mile you can out of the vehicle and then take it apart and it's a powerwall for your house, plus motors for other projects.

[@vtorsi610]

The $64,000 question is ... How long will these very used modules last? 1 Year? 2 Years?

[@InnovativeSustainableSolutions]

@@vtorsi610 Cycle life is determined by temperature, and depth/speed of discharge. If you operate a Leaf module capacity bank within that sweet spot, they actually deliver incredible longevity. kzbin.info/www/bejne/nputmWekf5h8apY Here is a Leaf with 210k miles on the original battery. Staggering longevity and performance when operated within ideal parameters

[@vtorsi610]

@@InnovativeSustainableSolutions Yes, we all know ... if you barely use the battery it will last much longer. But, your reply does not answer my question. Most Off-Grid homes, do actually discharge their battery bank, sometimes severely, on a daily basis. The seller has no idea what temperature these USED Nissan Leaf Modules where exposed to, when they were inside the vehicle. Or how many cycles, were already extracted. Or the min, average or max % DOD used by the car. The seller has no clue how many more CYCLES ( even say @ 50% DOD ) remain in the pack. How can the buyer make a wise decision when there are so few facts available? The only fact we have is ... the pack is already severely degraded down to 60% of its Original Capacity. 40% of the original capacity is gone forever!!! With only a 30 day warranty, this is a crap shoot and maybe a huge waste of time and money. At just 50% DOD daily how many more CYCLES can we get? I hear crickets! A Battleborn battery is guaranteed for 100% DOD every day for 10 YEARS !!! And then in 10 YEARS my Battleborn battery will be a USED pack ( for "FREE" ) that is equivalent to the above pack. So, why would I pay for a USED battery pack today, with essentially no warranty, when my new Battleborn will become a "free" USED pack in 10 YEARS? If this USED Nissan Leaf battery pack cannot be used at 100% DOD ( 38 Amp-Hours ) daily for at least 6 YEARS, or 50% DOD ( only 14 Amp-Hours ) daily for 12 YEARS, then a Battleborn is a CHEAPER purchase. This USED Leaf module ( with falsely advertised "100% Capacity" ratings via the ebay link ) is no bargain ...

[@InnovativeSustainableSolutions]

@@vtorsi610 I know a little bit about off grid power, and heavy discharge cycles (I will cite my channel as my resume). I would respectfully postulate that you are overcomplicating the calculation by trying to guess what kind of abuse the Leaf Pack went through before you bought it. For the purposes of a DIY home powerwall it really doesn't matter. This is because the FUTURE degradation of the battery is what matters to the purchaser. And that is determined EXCLUSIVELY by the conditions we (the DIY home powerwall folks) expose the battery too. To answer your question about how many cycles you can get out of a Leaf module (Gen1 chemistry: lithium-manganese-oxide with nickel oxide) the answer is around 5,000. Rougly 60% the cycle life of the LiFePo4 chemistry used in battleborn batteries. So Battleborn batteries are BETTER than Leaf modules, but are they cheaper in the long run? I Leaf battery pack off Ebay will run you 1,000-1,100 dollars and have a capacity of 10-14kwh. We'll go with the underperformers and say 10kwh. Properly maintained (cooled, and professionally bms'd) you can get years of heavy daily use out of this pack, but honestly, I advise people to not even start until they can afford 2 or 3 packs. So we're out $3,500 and we have atleast a 30kwh powerwall, that can give us 3 years minimum (probably 5) of 90% DOD. Most of us off-griders are not rich, so I realize a $3,500 powerwall is a stretch. But compare that to a Battleborn bank. A 30kwh system would run you $30,000. Sure it would last twice as long, but it would cost you 9X as much. I'm not a huge Jehu fan, he's been pretty rude to me before when I was just getting started and asked a stupid question, and I think Battleborn's are good batteries, but for cost comparison in the long run, for large powerwalls: The Leaf packs blow them out of the water.

[@OVER-bENGINEERED]

All of the provided buss bars, covers, balance lead lugs and even the terminal bolts are original Nissan leaf pack parts. Compression plates including ones with welded nuts are built into the pack. Its a treasure box of parts.

[@bobstockwell3911]

Thank You , i am the solar man of Lehigh Acres Fl and thanks to you i am now building my Plug N Play Solar Boxes with Lithium Batteries. It will cost more but i believe that it will be worth it when you figure 90% discharge rate.

[@gregweber802]

Bob, do you do consulting?

[@AndreyYeltsov]

I like how you shorted terminals and didn't cause a boom at 2:08

[@Nicholas-f5]

I have a 2011 LEAF with a 2016 battery, perhaps these and crashed cars are some of the sources. 😀 Warranty upgrade to 30kw seemed possible on pre 2018s

[@ekbuz]

Thanks for testing these. I'm looking into building a powerwall and my source of 18650's has dried up and I only have about 500 useful cells out of the 1300 I got. I had been looking at these exact cells as an easy option since it's just a few bolts and not 1000's of solder/spot welds. I'm sad to hear that they could already be 50% degraded. Not worth the money at that level, if they were better, then I could see them being a cheaper alternative to Tesla modules.

[@immrnoidall]

awesome time lapse video at the end, with clear view of the stars in the sky. wow.

[@madigan_sax]

Any updates for these links? I can't find any source for these kits!

[@hbmike47]

Those batteries are stacked with spacers in the leaf battery so when bolted with the all thread the pressure is spread across the top and bottom edges and not on the center of the cells. This allows for some pouch expansion and contraction with heat and avoids pressurizing the pouches by compressing the pack. Perhaps you can source the spacers with the cells? It would be safer.

[@kaltree2644]

Can you please make a review for that battery workstation, it look so cool.

[@infonyx3909]

Wondering if i can put a pack like this one on an ebike. Any suggestions?

[@paulwhitehead3002]

Have you done any reserch on reconditiined fork lift batteries fi sollar systems

[@TechnikJens]

Hey thanks for the video. Actually I want to ask you to check and correct those links in the video description as they are no longer working..

[@SurfenSpace]

I'd like to know about the expected life of these batteries, this is needed to judge economy.

[@pattimichellesheaffer103]

Jehu - - - how many cycles can you get out of these? That's an important number for solar! (1 cycle = 1 day). I know they're listed as ~70% - but that's voltage, not remaining cycles! (anyone??)

[@pattimichellesheaffer103]

Right, but we need some way to relate cycles to the number "70% capacity" that sellers give these batteries.

[@vtorsi610]

@Dennis Jemison How long has your used Nissan Battery Bank actually been operating? How man CYCLES have you put on it? How much has the capacity degraded?

[@vtorsi610]

@Dennis Jemison These batteries have already LOST 30% of their capacity! And now you say we should not charge to 100% SOC, nor Discharge down to 100% DOD? Lets say we charge up to 80% SOC and down to 30% SOC. So, we now only get 50% of the already reduced 70% = only 35% of the original capacity - How is that a DEAL ???

[@vtorsi610]

@Dennis Jemison These are ( severely degraded - old style ) GEN 1 Packs, not the ( new style ) GEN 2 packs. Therefore, you did *NOT* buy what is being advertised in this video ... So, take your irrelevant BS and shove it, yourself ... I love it when idiots, like you, don't even watch the video ...

[@mashedpotatoes5323]

If you were worried about efficiency would you use higher gauge wire so it doesn't get hot and use power to make heat?

[@jehugarcia]

If you wanted more than 40A continuos yes, but then again you’d run out of battery in 40 mins

[@kevinroberts781]

If it gets hot/warm at all that is energy lost. A slight amount of heat can be huge in regards to Efficiency. If you are going to use these for a powerwall, for sure, use much bigger cables. Whatever size wire anyone tells you to use, double the size.

[@yv6eda]

Thanks for the video Jehu! May you make a video comparing this pack with a Tesla capacity and price? Thanks

[@FullSendPrecision]

@jehugarcia Tech Direct doesn't have any of this kit available in their ebay store. They have the cells, but dont seem to be selling the fancy metal brackets/box/bms.

[@CncObsession]

All I ever get from them is the modules regardless of what is shown in the ads. Buss bars or brackets are never sent, they refund instead of offer the brackets you see on their Ebay pages.

[@FullSendPrecision]

CncObsession good to know. Thanks.

[@frass-vd6gl]

I already have a wrecked leaf bit it would be great to have the containment system.

[@solar24090]

center post is for the BMS red to black is 2 series 2parrallel or 7.6 +-

[@vtorsi610]

Every post gets an electrical connection to the 14S BMS ...

[@tateseacrest4609]

I own a 2014 Nissan Leaf and it's great, wonderful to see these batteries used for other things

The hemp rope handles are killers! :D

[@greenmenpt]

what charger/inverter you recomend for houses ?

[@thedavesofourlives1]

if your wires are getting warm, you're doing something wrong a 40A fuse does not a 40A rating on the wire make

[@Good-Enuff-Garage]

the rope handles are fugly

[@stevelake5943]

Is it necessary to use a bms when using two Nissan Leaf modules for a 12 volt application?

[@sudrnchakra]

Thanks a mil finally a video that tells it as it is on the Leaf batteries. I am new to this so the tutorial helps! All aroundgreat.

[@patrickcrow5042]

Appreciated. Also, totally off topic, but beautiful Telecaster.

[@matthewknight5641]

Do you think the jkbms with 2 Amp active balance would be a.good choice for a leaf battery. I have 24 cells set up in a 24 volt configuration and have been using it a year with no bms but people say it's dangerous and that I need a bms. I ordered a jkbms and I hope it works for what I need

[@williamschlosser77]

Where are the accessories shown available? Specifically the orange plastic plate and bms? Ty very helpful vid.

[@maglitako78]

What type of Lithium Ion is this battery? Poly? Phosphate?

[@gasparini76]

apologies, I am green in the subject. I would like the complete procedure. Is it a state of a health check? where I could find material to learn step by step, please.

[@CerebralAilment]

What brand tape?

[@nareshgorkhali5197]

You r the king of li-ion battery

[@timw1971]

The Li-ion King, indeed.

[@diegoromanaldas2477]

Hello friend, excellent video, where could I get cells for a 27kw battery of a kia soul ev from 2016?, I have some damaged cells

[@Rxray5050]

How much longer are they expected to last or cycles ?

[@jpmche]

I assume 10 modules are needed for 72v application?

[@victoryfirst2878]

Shame cost is so high. Nice video fella.

[@rgbcolor6450]

From what I can tell, TechDirect lists the manufactures specs on all their ebay auctions. Its kind of deceptive because they list the "New" specs but give you a run down battery. So if they're selling a 7kw battery pack, you might only get 4 kw of actual battery. To get what you pay for, you have to know about the vehicle the batteries came out of. What year and how many miles on the vehicle.

[@tobeaprepper3864]

I agree, I have purchased 42 Batteries from techdirect,(2 orders) and not a single one is greater than 43AH most are >40, discouraging when they advertise 66ah but in reality your 1/3 less I have since moved over to greentechybridbatteries (Ebay) purchased 45 batteries, all are closer to 45-52AH (they are also well balanced ) same general prices..

[@vtorsi610]

@ RGB VCoilro - Greenn Tech Auto does give some detail on their Ebay auctions - "... Nissan only replaced the batteries after the SOH level dropped from 12 bars to 8 bars or lower, so there is *NO* *CHANCE* they are going to be 70% capacity or more, the average we have been seeing is 65% capacity. The capacity within one pack can vary up to 3 Ah on average, sometimes up to 7Ah. We sort our modules based on the tested capacity and ship groups within 1Ah of each other, usually less. In large orders we might have a larger range. This listing is for modules near the 40Ah test range. You could receive anywhere from 38Ah to 43Ah modules. Whichever group you receive will be within 1Ah of each other. "OFFERS" received will lean toward the lower capacity, "FULL PRICE" buyers will receive the highest capacity available. Come with 1 month warranty. ..."

[@danielcarlsen2217]

Could do a video on 24v solar home system using electric car lithium batteries

[@VictorToroMostajo]

Podrias hacer los videos tambien en español ? por favor.

[@kens97sto171]

The first generation Nissan leaf batteries have a serious issue with battery degradation due to no significant cooling system in the car. My fear would be that that degradation percentage continues to increase over time making them not have a very long life after you have purchased them.

[@jeanronaldantoine7095]

Hi what s the different between Nissan leaf bat and Samsung bat ess Which one the better

[@boschz1385]

Hi, could I make 2x24V from 7 cells?

[@HobbesNJoe]

Did I hear correctly? You got 280 watt-hours from ONE CELL of a two-cell pack (technically 2S-2P)? Rated for 500 watt-hours, a total of 560 watt-hours is 110% rated capacity. I'm sure the provider of that pack would appreciate a correction in the video if warranted.

[@blue9120]

How many of these modules can make 300 volts ?

[@billdale1]

Jehu--- @ 3:10, you say you are putting such-and-such "in the Tesla battery"... I do assume you mean the Leaf battery?

[@jcrnda]

Tesla battery under the workbench that he is charging with Leaf cells at 5 Amps

[@donaldburkhard7932]

Is case big enough to allow aluminum cooling plates in between cells?

[@MrConor159]

Almost anything that wasn't Nissan's design would be an improvement

[@vtorsi610]

@Donald - Why would YOU need cooling plates ?

[@squidben5780]

Can you repair them or regenerate them?

[@nikleiser5888]

Hey jehu, would you mind to ask to Community whats the batterysituation for used batterys/packs around the world like ?! I am especially interested in Germany and neihbouring countrys. the questions could be like; Is it legal to sell battery without protection? Where can I find a good deal ? and so on. A new videoseries called" Batterys around the world".

[@NinoJoel]

that woud be interesting to see. I live in Germany and as far as i know it is legal to sell any type of battery as long as it is as parts and not as a finished product. The problem woud be delivery in large amounts since the transport company will have to do some safety checks. Sadly as far as i have searched over the last 2 years there are no reliable and cheap battery sources like in the us right now.

[@kevinroberts781]

The area I live in in the United States, the local scrap yards refuse to sell them to me. Cash in hand but will not sell them. It's legal but someone else must be getting them.

[@NinoJoel]

@@kevinroberts781 Germany has one big Problem..... Useless Laws. Im really good at repairing pretty much any electronic device. My local junk jard has containers full of laptop's and really extensive flat screen televisions. But it is forbidden by law to re purpose anything that people have brought there. Even if someone woud throw a 3000$ PC in there you woud get sued for stealing if you take it out.

[@OH8STN]

Actually guys, living in Finland, I get most of my cells from Germany. "Shop dot Lipopower dot de". They don't sell used cells, but they have high quality cells at a good price. It's also possible to get sales from the Netherlands or Czech Republic, but in those examples you almost never know what you're getting. I know there's a big market for repurposed cells, but new cells are pretty reasonably priced for a big project with long lifetime. If I'm just building small DIY projects, maybe the new cells are too expensive for some. If I were back home in the US I would probably consider some used batteries but not here in the EU

[@EleTruk]

I did something similar, but instead of buying individual modules, I just bought a whole Leaf battery from a wrecker.. That cost me $3500 for the 48 modules in the battery pack, and I just reused the Leaf's hardware (plus some threaded rod) to make my own 48V packs. And I didn't mess with a BMS, because the Leaf cells are pretty robust, and after using them for nearly 4 years, they are doing fine. Maybe they don't have the pretty case, but that doesn't affect their function.

[@baileybonham1750]

I'm in the process of building a 24 kwh 48 cell g2 solar battery, I was curious what you did for an invertor. How big off an invertor would you recommend for this large of storage? 10-12 KW? Any insite would be appreciated.

[@EleTruk]

@@baileybonham1750 I am using a Xantrex XW6048 6kW inverter, and I used the full pack. You can program the charge and discharge voltages to make sure you never overcharge, or over discharge the batteries. The main use is to collect solar, and charge my EV. But it depends on what you are planning your system for.

[@carlosgorjao4037]

@@EleTruk Hi !! I m using an inverter quite similar but with normal batteries !! How did you configure the inverter charger to charge lithium packs .... I would like to switch to lithium ... thanks !

[@EleTruk]

@@carlosgorjao4037 I just set the voltage to make sure they never exceed the max or minumum of the batteries. The absolute max voltage on a Leaf battery is 8.4V, so if you never go above 8V you are good. Also on the minimum if you make sure the inverter never draws below the battery's minimum voltage which is 7.2V (absolute minimum is 5V, but that's damage the cell territory). I use a solar MPPT charger to charge the batteries, not the inverter. I just set the absorption/float voltages to the same max voltage, so with 6 Leaf batteries per pack (for a 48V system), the max voltage would be 48V, and the minimum would be 43.2V. Stay within those limits and the batteries should be fine, they have been for me. You won't get the max storage the cells are capable of, but they will last much longer if you don't push the extremes.

[@vtorsi610]

@@EleTruk If you do not have a BMS then you cannot set the individual CELL voltage, you can control ONLY the min/max PACK voltage. You are like the guy who runs every red light ... Hey man, not a problem for me ... Until one day, you have a fatal crash = BIG problem ...

[@sylvainmenard3311]

Can we still get the kit? Where can I get the orange top bus bar connector? Thank you!

[@michaelfray8543]

great video, just one question if used without a BMS what will be the end result?

[@rigtrup_michael]

Is this BMS made specially for Lithium Manganese batteries like the Leaf-batteries are. Or does any BMS with 14s work?

[@jackmason7518]

Good Morning. I was thinking of a 12 Volt sys in a trailer that has solar power. What do you think of that and do think the cost over AGM batteries? Jack

[@GottaOldHardDrive]

Did you only check half the cell? Need to check from negative to center post also. Then add the 2 tests together. Doubling the ah rating. Or if your charger will do it, check at 7.2 volt charge/discharge.

[@jehugarcia]

Unnecessary

[@GottaOldHardDrive]

Yep, your right, they are either degraded by half or overrated by double. :)

[@lolokiki4218]

Hi . Its possible to 2 battery hybrid to prius gen 2 for instal solar on 24v ?

[@lolokiki4218]

Yes or not ?

[@lolokiki4218]

Please

[@vtorsi610]

@@lolokiki4218 I don't understand the question ...

[@james10739]

I did not realize there was a 3rd terminal but I dont guess you could use them for 24v with 7 of them with 3 and then half of one because they are joined internally and you could not have the most positive of 1 pack be the same terminal be the most negative of another

[@vtorsi610]

Did you do the math for 3 or 4 modules in SERIES vs your Charger & Inverter specs ?

[@james10739]

@@vtorsi610 yes 7s works wells with standard 24v inverters 6 is a little and 8 is to many to be able to use all of the power

[@vtorsi610]

@@james10739 Why can't you use 8S = 4 Modules in series? Your cells will last much longer if you don't max out the charge voltage !

[@geraldgrogan]

I see where they have the pack of 7 batteries on the vendor ebay store. Do they also sell the kit you used along with the BMS and the metal box you used in your video? I don't see that in their store.

[@jehugarcia]

j35.us/Leaf-PowerPack

[@markvinyard1572]

Hi there. I’m looking for the bms kit you used in this Nissan Leaf battery all links fail ? Can you help pls ?

[@RollingThunder85]

Hey boss I'm really in need of a battery bank for my new home unfortunately it's a RV I feel like a failure what should I look for in my search I have played around with ev batteries before but I need a professional opinion on what's best

[@AfricanRabbit101]

Did you ever manage to finish your range rover project for your buddy?

[@jehugarcia]

no he lost interest

[@rgbcolor6450]

A much better question to cover is "HOW ARE THEY GETTING THESE BATTERIES?". When I tried to acquire them from the dealers, insurance companies, etc, none of them even wanted to talk to me. So how are they getting their hands on so many of them?

[@gavincarstens6497]

Contracts... or bribes?

[@DaddyEric222]

You have to go into places. Phone calls don't work for real bulk buys unless you want to pay a lot of $$$. I resell laptop batteries by the 100s, just went into a couple recycling places and started talking with people, got some contacts and found some good places.

[@supermojo9672]

The answer is: he's famous...

[@pattimichellesheaffer103]

Jehu - about how many cycles do these Nissan Leaf (70%) batteries have remaining in them? 70% refers to DOD (actually, usable kWh storage capacity), I believe, not usable cycles remaining.

[@vtorsi610]

How would Jeru know how many cycles were remaining in each module? Even if he cycled one module to death, the results would be applicable to only that module. USED modules are like snowflakes - no two used modules are alike. The 70% capacity is already lower than what is allowed by the warranty after a full 8 YEARS of driving ( per a GEN 2 Nissan ) and ( I think ) this is an even older GEN 1 pack

[@VroomvroomNY]

What is a good, not too exspensive charger that's good for the Nissan leaf batteries? Any help greatly appreciated 😁

[@h0len]

wait wait wait... are half of the leafs in the US? because i think Norway has the rest then :P

[@carlosgorjao4037]

Very interesting and pedagogic video ! I will go to build this !! What will be the recommended voltage and current to charge this 48 v pack ? What kind of charger … does it need to regulate the voltage and current ? Or the BMS does it ? Thanks and regards.

[@vtorsi610]

Let us know how many more cycles you get and your % DOD ( like 50% DOD ) because these GEN 1 batteries are already severely degraded !

[@ShaneS071]

I have been trying to fins a 12s lipo battery checker, only looking to read the voltage on each cell

[@Jdmlsturbo]

So. What’s wrong with a Prius modules?

[@vincenzopromedia]

What would you use a prius module for? An electric car, or a solar battery bank?

[@Jdmlsturbo]

Vince Abednego 😂 that’s kinda what I was trying to ask... so I have a bunch of Prius cells. I’m trying to figure out if I can use it for either a powerwall, or can I turn it into a portable power pack...? I have a old and bad 12v battery jumper, and I was curious if I can swap the dead lead acid 12v battery on my portable jumper with Prius cells...? Any thoughts? Inputs? Ideas? Advice? Also, I’m new to this stuff

[@vincenzopromedia]

@@Jdmlsturbo yeah you can definetly make a power wall but what kind of battery jumper is it that you want to fix? Because I think you can swap a cell but the size and shape of it might not make it work.

[@Jdmlsturbo]

Vince Abednego so I bought a cheap harbor freight 12v portable battery jumper, for car. And originally they used a small lead acid battery. But that battery is now bad and dead. So I found videos on KZbin, people turning 18650cells into portable power banks to jump start cars, or even to power the car. So I got to thinking... I have a bunch of good and tested Prius cells left over, from rebuilding Prius modules(1st gen, nimh) not lithium ion like 18650. Then Started searching if people were using Prius cells to make portable power banks, and found nothing besides powerwalls. So I always assumed lith-ion only if I wanted to take my bad portable jumper and replace the lead acid, it would only work if I used another lead acid or lithium, but Nimh was out the picture....?🧐🤔🤔 I’ve only been doing 1.5 years of KZbin and reading online. Again thnxs, and thanks for being patient with me and answering my questions.

[@Jdmlsturbo]

Vince Abednego oh, and if I could use the Nimh Prius cells to fix my bad 12v portable jumper, that would be great. Since I always need it here at the body shop, cars come in for a few weeks and batteries are always draining. And I have 2 portable jumpers that are in good shape, if I can fix the cheap bad one, I won’t have to worry when my dewalt and snap-on one goes bad with all these extra Prius cells

[@igounfazed]

So... the way it looked in the video was as if this was a company product. The link Jehu is providing goes to an eBay sale to something that *looks nothing like* what he had in this video... *Am I Missing Something?*

[@jehugarcia]

j35.us/Leaf-PowerPack

[@ClarenceDold]

Is there a new link for the kit?

[@mohinderkaur6671]

Hi, can you please recommend a 48 battery pack for portable use with ham radio use - need about 20ah capacity atleast and 30amp discharge rate. about 1 hr run time would be good

[@vtorsi610]

10 @ 18650 cells connected in parallel is about 20 Amp-Hours. Then connect many of these parallel groups in series, to get 48 Volts. If you decide connect 4 @ 12 Volt 20 Amp-Hour batteries in series, first verify that the BMS can actually handle 48 volts. Then recharge the 12 volt packs as 4 separate 12V units. www.amazon.com/ExpertPower-Rechargeable-2500-7000-lifetime-Applications/dp/B07X523S96

[@fejszter]

Why didn't you finish the discharge at 2.5V? The result would be a little different...

[@ketchikanalaskanews476]

You can buy a used leaf for $2500, why not use the complete pack as a home storage unit?

[@kevinraber7823]

for all of us total newbs in EV can you show the wiring slower for the leaf

[@omkheni]

love you from India man!! I saw your couple of videos you have so much knowledge for 18650 battery or other batteries

[@fradaja]

It's because Nissan don't have thermal management , how do you moderate the temperature ?

[@pulesjet]

Not a problem for Solar Use. You just use a Thermostatic Switch Regulator like for a Refrigerator or what ever . Relay disconnects or limits. www.banggood.com/XH-W3001-Microcomputer-Digital-Temperature-Controller-Thermostat-Temperature-Control-Switch-With-Display-p-1415881.html?rmmds=myorder Keeping them within the Charging or discharge current levels there should't be a issue I would think. If they're getting hot something else is wrong.

[@vtorsi610]

@@pulesjet But it was a problem when the battery pack was in the car and sitting in the heat. The GEN 1 modules lost significant capacity due to heat. How that affect the module's capacity going forward, remains to be seen ...

[@fradaja]

@@vtorsi610 well if the winds blowing and suns out and these things are sat in my rv at 35c, it’s a worry , I don’t want thermal cut out , I want a refrigeration system

[@kevinmorales1871]

Hola saludos mi nombre es Kevin tengo 15 módulos de baterias leaf y estan configurados en 3 grupos de 5 modulos y esos tres grupos en serie para tener 24v quiero saver cual es el voltaje del cargador solar que debe tener por que mi cargador makeskyblue carga a 29v hasta que las baterias ya estan cargada pero es con las baterias de ácido es lo mismo o tengo que vajar el voltaje gracias anticipadamente

[@vtorsi610]

The Maximum Voltage per module = 8.3 Volts, slightly lower is much better. Therefore, 3 modules connected in series is 24.9 Volts Max = 8.3 x 3 modules. Your 29 Volt charger is set way too high ...

[@stevelaminack1516]

So ...you can't get these anymore, the link you gave above is dead.

[@vtorsi610]

You can still buy them ...

[@GlennPearsonDIY]

How would you parallel connect 2 of these batteries with each having their own BMS?

[@dlhvac1]

Glenn Pearson yes

[@battery_solar_ev]

parallel dont matter just have a way to hook all of them up via distribution block make sure all battery packs are close in voltage after that they will match up on their own I have had no problem doing this. If its a good BMS and you have one pack dead and one full charge then charging will the dead pack will start if its with in the current rating. This is one way i test the bms boards i purchase.

[@bergssprangare]

@@battery_solar_ev Slightly badly written

[@johnq8792]

@@battery_solar_ev ... I do not understand this please explain in different sentences

[@GreenMasterMike]

Could you run a custom built e -scooter?And if you could I was thinking this 7 batteries would be perfect I think let me know maybe we can build it together

[@ezmeraldadudortoka7549]

That's because those are generation 1 modules. They had a considerably smaller capacity to start with.

[@vtorsi610]

I thought the GEN 1 Modules were rated at 66 Amp-Hours? But in the video, Jehu only got *38.5* Ah, which means 40% of this modules capacity is already gone, forever ...

[@ogairbender808]

Could we make a 14 volt system for car audio

[@DineshKumarWickramasinghe]

Nice video. I have a question. Can I build a 3S battery bank with Leaf modules? For an example let's say I have two leaf modules. Can I build a 3S2P bank with them?

[@vtorsi610]

If you only have two (2) Modules ( 4 Cells ) then no you cannot do 3S2P cells = 6 cells, because you only have 4 cells! You can do 2S2P cells.

[@farhanahmadentertanmint3977]

I need this battery how much price

[@Mikesroadtrip-ec5kp]

All new to me. How many amp hours would that be? You might of said it.

[@michael931]

He did not say exactly. The mfg claims 66 but at 4:40 he says he measured 38 which would be really low.

[@stevekim6923]

Hi there! Thanks for your impressive video. Can you tell me a charger I can buy for 48 volt lithium ion batteries with 24khw? In other words, entire leaf batteries.

[@محمدبنيهاني-ه5م]

كيف اوصل هاي البطاريات على انفيرتر طاقة شمسية نضام 48 فولت

[@GMRedline]

What would be a good AC power supply for this BMS to charge this project?

[@mikekeyser7870]

Would these be good to put on an RV/skoolie? Looking to get some major power on my rig.

[@vtorsi610]

No, get the newer GEN 2's ...

[@MiguelGONZALEZ-qm6ke]

How much

[@mortcs]

What is the total cost for that pack? The links in the description don't seem to include the brackets and bms, just the cells. Also would you say that 2kwh is the theoretical max of new cells or measured capacity of 50-60% degraded cells?

[@jehugarcia]

j35.us/Leaf-PowerPack

[@moonbeambill]

Is it possable it direct charge my new bmw i3 ev direct from a solor panel without going through a A/C conversion and then back to DC through my household power?

[@jehugarcia]

your car is 400Vdc most likely so you will need some kind of conversion unless you have a matching solar system volatge

[@erics5716]

Where did you get the battery discharger / reverse charger?

[@lakelandfl9328]

Wasn't your $300 Tesla wall more power per cu ft? If I recall, it was nearly 4440 kwh vs what this brick get.

[@vtorsi610]

The Nissan Modules are less efficient by energy per unit volume and energy per unit weight ...

[@MiamiWebDesign]

I built one of these packs and two of my Leaf cells have become swollen. should I throw them out immediately or will they still be usable like this?

[@peterartboy]

Hi Jehu, I've gone to the kit.com site you refer here and I;ve put in 10kWh lion battery pack but get (0) results - what am I doing wrong here?

[@jehugarcia]

Which one you looking for?

[@cruizgonzalez5004]

Using that battery would it be possible to build a a 11 - 20 kwh battery bank system for a grid tie system?

[@vtorsi610]

Yes, that is possible ...

[@Ciloteille]

Links are dead for buying. Just fyi

[@CncObsession]

Mine were Gen 1, 70 bucks each delivered. Module only.

[@drsolar]

How are the working out for you?

[@vtorsi610]

@CncObsession - How many cycles vs more degradation ?

[@trevinom69]

Love your video. Subscribing. Question: TigerDirect pairs a 48V charger for their 7 cell packs. Is this enough to charge these which are 7.4 volts each? At nominal 3.7V each cell, 14 cells is 51.8V. Did you charge the 7-pack with a 48V charger? Will the BMS you installed on the pack handle a 56V charger? This would make more sense since 8.3v is max. rated capacity and 8V would put it under that.

[@vtorsi610]

Do you have the specs on the CHARGER ?

[@MiguelGONZALEZ-qm6ke]

I have a 2012 nissan leaf , im thinking of tearing it up