THE BRAND NEW JP40 LITHIUM BATTERY HAS HOW MUCH POWER!?

Your new Down4Sound JP40 lithium battery is the industry leading lithium battery made for pulse discharge loads. Lithium cells hold, in general terms, three times the energy density of lead acid batteries. They do however, need careful management to be safe and provide a long service life.
In this video, JP gives us our first look at the new JP40 Lithium Battery from Down4sound. Be sure to leave your questions regarding the JP40 in the comments below for JP to answer. If we get enough questions, who knows, we may do a part 2 of the JP40 walkthrough!
The Down4sound JP40 Lithium Battery is available at down4soundshop.com in the link below.
DOWN4SOUND | D4S JP40 - 12V Lithium Battery ( 6000 - 12000W )
www.down4soundshop.com/down4s...

[@redneck-dp1hn]

I have two and love them I was able to put out 13,500 watts out of my amp with 2 of the jp40 will buy again

[@THELIFEOFPRICE]

Thank you for the feedback and glad you love them!

[@jaysonsmith9803]

What alternator?

[@Tabascorider]

what was your voltage dropping to?

[@JoshTheChevyBoy]

@@THELIFEOFPRICEcan I use battery with a yellow top optima battery under my hood

[@Doing150s]

​@@JoshTheChevyBoy No battery under the hood unless you use the xs sb series banks. So you can use and do a battery delete or get one of the xs power under hood sb banks.

[@v3zMedia]

The design and mounting ability alone will make these fly off the shelves

[@noelsantiago3159]

Thanks JP not sure why people hate on you when all your doing is making bad ass products! Thank you!!!!!

[@xannis6443]

Ppl will always hate on a successful person & jp is definitely a successful bass head 🔊🔊🔊

[@RandoManFPV]

They just don't like his style and hate to see him slaying in every way 😂 it is what it is. Especially in a hobby like car audio you just gotta know 75% of the hobbyists that open their mouths or keyboards are haters. Same with drones

[@cartycartyamplifiersalesrepair]

Great job JP first Amplifiers now batteries wow Amazing work guys keep up the good work you guys really hit the jackpot with your line of product nuff respect 👍 👍 🙏

[@kylewilson9809]

That buss bar setup looks like it's asking for a fireworks show.

[@RomaVilla]

Just thinking the same thing, a thin layer of tape doesn't sound very secure or reliable

[@THELIFEOFPRICE]

@@RomaVilla it’s not like you would be planning on letting them touch the piece of tape would be a “just in case” you slipped up

[@RomaVilla]

@@THELIFEOFPRICE I get that but knowing how nervous I get sometimes, that's an accident waiting to happen for myself. Iv dropped a 14 mm socket in between buss bar on my Northstar neg and positive and almost started a small fire in my trunk. Bolt got wedged somehow and I pulled to pry it out and it fell in between p and n and started a small firework show. Battery still works but it ruined my buss bar and hurt my pride a bit.

[@kdoeone]

This company is full of surprises. How kool would that look in the inside of a cargo can. Batts / amps all lined up.

[@franknbeans164]

Man this battery is badass I just received it didn’t hook it up yet but the design and the bottom of the battery is awesome.

[@markbradley769]

Fire. I would love that next to the jp amps. Nice cherry on top.

[@James.Courtney]

Beautiful product.

[@breedam]

Too expensive for me, but dang what an good looking and thought over unit. Class work.

[@thickpackage4392]

Agreed great idea but 300ah for lithium elsewhere 900 for 40ah battery best charge it's self

[@grominwithrob1339]

These batteries are a genius level idea and look perfectly executed.

[@dgomez1389]

Can't wait for mine to get here.

[@DIAVLO666]

Just installed this in my truck and love it I have a bit more space and got rid of that 80pound battery in my trunk now I just need to make a rack to mount it on and my amp as well

[@2008guelo]

How do you like yours I just received mines , I’ll be installing tomorrow

[@PeterFeltersnatch852]

​@@2008guelohow do you like

[@2008guelo]

@@PeterFeltersnatch852 I actually really love mines had for over a year and it’s the only battery I run now 0 issues, highly recommend.

[@justinvanburen8259]

That’s awesome, I love it!! Just need money!

[@cartruck1070]

Great features and explanation. 😎👍👍

[@stonwall26]

Your blowing it out of the park jp!! Great job my man

[@mikethatguy27]

Owwee the jp40 looks sick!💯🙌

[@chadbeverly4926]

These are awesome!

[@todizzle666]

I love it because I got both those amps that are next to those batteries love them

[@edycalderon1282]

Nice lithium batteries 👍👍

[@elproco24]

I wish I could use these In my big build my 6 wolfram au V3 18s takes up all the space need a powerful tiny battery

[@THELIFEOFPRICE]

Not gonna get anymore powerful than this in a smaller space

[@ANXIETYR6]

I got one it works as needed

[@brotharobmusic]

I guess if I get one or two of these I won't need a cmax no more. Ok JP I like them bro! I need to upgrade, my cable fray when I blast my music. I can't even use my 8k amp so I'm using my kicker 2500.1 It cost to floss!

[@kevinnelson9588]

"I can't wait to see people doing 2, 4, 6, or 8 of these!" I bet you can't at 999 a pop. Even at 999, if you aren't handy with this stuff, this is a super nice set up. When I get like y'all, I look forward to putting together a setup that needs a bank like this. Would be overkill for my 2 10s and JP8 lol.

[@commonsenseisdeadin2024]

"I can't wait to see people doing 2, 4, 6, or 8 of these!" yeah I bet he doe$

[@stevemaniaci4750]

Lol man a lot of lout to boot. 😱

[@kargo6]

Id rather have a more ugly lto bank for less and the same performance because I don't know what's I'm the new jp Lithium I've seen the old ones from the inside they're horrible from the inside

[@commonsenseisdeadin2024]

@@kargo6 issue was that it was only 5 cells and for the price... Ouch! With these, We'll see the guts soon. I do not like the bussing right on top of one another and for the size and the packaging I am very interested in the test results with that big of a claim. It's a slick idea but 1g, and the monitor is not included i don't dare ask if the lube is 😂 I'll stick with my cmax.

[@jasonhedrick5396]

I've got 4 xs d2400's , 2 runs of Rockford fosgate oversized 1/0 to a Js 370 amp alt. , 6 spot copper terminals , 3 1/0 copper battery distribution and all copper lugs. I got a bluetop optima on a steal new for $208 new. Just for the car not integrating with the other 4 in the trunk. I'm currently about to order the nvx 500 amp smart battery isolator that says it handles up to 700 amp surge to separate them. My question is is that sufficient enough and a good brand to use to isolate? Do I need copper solid plate buss bars? Aluminum is ran across on All 4 now. All this all will be running a sundown sfb8000 on 2 sundown x 15s. Alt puts out 14.8v at idle. Trying to decide wether to use my JL 300/4v2, or xtant 603x, or Rockford fosgate 600a4 on the mids and highs. Definitely not a inexpensive hobby. And it has taken me a long time to get this far and supporting a fam. in which just drives the determination to go big or go home. Well for now that's about all I can fit where the back seat used to be in a 98 cavelier 🤣 anyway lol if you could help me out with some knowledge JP or anyone else here is greatly appreciate it. Would love to have one of those banks ! 1 day lol. Have a good one fellow bassheads. Looking forward to some knowledge and feed back on this book I wrote on here 🤣

[@zachthomas6935]

But I have a lto 6.0 and I read that I can mix it wit agm. So I have my xs power battery in trunk connected to the lto. So that’s ok right ??!!

[@TheDoozie43]

Will these work with my Titan 8 s5 3400? Still need a supplemental for out back.

[@jasonvaldez6349]

May I suggest adding a BATMAN (battery management system) which includes a Bluetooth/App Controller system that can provide SafeMode ER cutoff if battery exceeds temps above 120 degrees Fahrenheit, perhaps even a cooling system, thus Having controls on Lithium batteries for car audio is KEY to avoiding any type of battery explosion or fire dangers. That kind of system ALREADY built into batteries can increase battery life. May I suggest testing/research a capacitor and JP40 package system that will manage a 10K-12K watt range system??

[@d.smithim8306]

Hopefully someone can chime in. I am putting together a larger boat build. I just came accross this battery when searching out other AGM / Lithium batts. In a boat, you use a battery isolater. I have allways ran my boat builds directly off a battery switch. Allways leaving a seperate battery only for starting. Can this be used as such ? Keeping a regular group 31 agm starting batter on a second switch ? And second, what kind of playing time at party cove, sitting no engine running, would 40ah supply ? Approx a 10k watt system. I usually run 5 group 27 batteries to power only my system at a lot more then 40ah... Even 2 if these at 80ah seems not so great for playing with no engine running. Am i missing something?

[@djjewstavete2325]

Can use the same charger wit lto 6.0 bro awesome product 👏

[@THELIFEOFPRICE]

Yes you can

[@commonsenseisdeadin2024]

Really should have the positive and negative on opposing sides or have a plastic spacer on the bottom of that top rail with the amount of juice going through it. Any testing data or cell data? Being LifePo4 the numbers seem off.

[@wheeze5203]

So if I have agm under the hood I can't use these?

[@lennylenhard5072]

JP! POWER!!

[@robtremble2277]

i really need to get into the car audio business i was thinking of this a year ago

[@ChristianMartinez-lq1yx]

Question !! I have a TITAN 8 in the back with a AGM under the hood , if a want to switch to JP40 can I put the TITAN 8 for the front batterie and run the JP40 in the back?

[@edud8452]

Nice JP👍

[@deviant4life25]

E BUD!

[@edud8452]

@@deviant4life25 Hey hey👋 wonder if it has a built in balancer wonder if the JY boys are making them?

[@boominS10]

That opens up options for mounting. My nitro has a storagespaceunder the rear floor that I use for my amps and these would make it possible to run lithium becausethey would fit in that storage area

[@user-pwfus]

Wicked idea but it would be so much better with some cooling fans.

[@THELIFEOFPRICE]

Maybe v2 but ours has a heatsink like our amplifiers and unlike any other batteries

[@chadcarbon9472]

Thanks J.P. great job on this battery, what is the weight of the battery. Keep up all the great work for the car audio world.

[@THELIFEOFPRICE]

I said it in the video but 14 pounds

[@shawnsanderson3695]

Those see thru bottoms really mess with my mind cuz I wouldn't be able to decide how to mount them

[@dshaw92ds]

Seems like a cool product for those doing upper level systems that want to do battery deletes and or switch out batteries but for those running more simple daily systems that currently run Agms as the main battery or factory even if you have the big 3 it will be a pain. I recently purchased the D4sound big 3 kit and bought a XS power D3400 for under the hood and these jp 40s cant be used with it?? Guess Id have to use the LTOs 6.0s since they can be wired in with a AGM.

[@TheAceTroubleshooter]

Dude just get rid of the AGM battery altogether. People act like a battery delete is some big ass mod that takes a bunch of work. If you have 2 batteries... One, MUCH more powerful than the other, then why would you want to keep around the shitty weak one? You think 40ah of lithium cant start a car? Rofl

[@TN1337X]

​@@TheAceTroubleshooter How do these lifepo4 do I'm cold weather however? Mounting it inside the car will not save the battery from -30 to -40°c which would be interesting to find out how they do in those temperatures?

[@user-uj8yk3lt6g]

It'll do fine esp in your trunk these are beast I just ordered my 2nd jp40 for 500 these aren't 900 anymore they been out for a while now this is old video..

[@ostube6035]

JP the Jp23 still has the voltage misprint on the amp….6v-0.2v ? I don’t recall if my Jp234 is the same. Just an FYI

[@shanekemp1312]

Sounds like you talking about the gain / sensitivity potentiometer, which is you would use to match your RCA voltage. That voltage range is normal, what makes you say it is a misprint?

[@TV_Offroad]

Are there going to ring terminal type bus bars by chance?

[@ganeshnarayan5505]

I no this may be a stupid question but how do you charge the batteries when the charge is low.

[@Dan-eh8bh]

Have the JP40 and the JP630. Front battery delete, 3 runs of 0 gage to the back. Running 2 sundown 12s x series in D4S hd3 box. 350 amp alt. Jp83 at 1ohm. Wow voltage stays at 13.8 no lower but I can’t bump😢 have to brace the whole roof or rear window will shatter. Love it in a sedan so I really couldn’t run any other battery’s or caps just no room for anything else. Thank you JP!!!

[@edgarpeinado1412]

when he says battery delete does that mean don’t run it in series with the under the hood battery? i have a mechman 370 alternator under the hood , do i just run a whole new power wire to the back & connect it to the jp40? & don’t run the stock battery to my car audio in the back ?

[@TN1337X]

@thelifeofprice i am wondering if i am running this battery standalone inside a vehicle what is the temperature rating for the battery? Winter it gets down to -40°c and summer +40 in my experience lifepo4 does not do well in cold temperatures anything less then 0°c it will not work at all?

[@timothymroberts2949]

Jonathan, this jp40 information states do not charge over 14.8V or damage could result. My 2006 dodge 2500 operates14.7-15.1v depending on ambient temperature. How do you recommend dealing with excessive charging voltage? Also, if battery type mixing isn't recommended, how does this integrate into the factory electrical with maintaining starting that is handled by the underwood batteries(06 dodge2500 5.9Cummins). Thinking about adding 2 of these for auxiliary power. Would a battery isolation work?

[@JaCoriTV]

JP your company never makes anything for budget builders. I'm a fan and proud of your success but God damn!!! Did you forget about when you first started?

[@kingboicheyryder7817]

Amazing battery can’t wait for that 1k price point to flex a little so us bass heads on a budget can afford it

[@Richtaco]

You definitely need a new build using nothing but d4s products

[@franshaan7388]

This is great

[@worldwideteambasscatdownri6963]

this is awesome

[@tyronedixon7404]

Will they work with jell cell batteries?

[@stevenstuart4813]

I would run a d3400 for the vehicle. Run to Mechman 400 Elites alternators. Direct runs from each alternator to those jp40

[@stevenstuart4813]

I forgot to add , run a Mechman 240 for the d3400

[@michaelhatley3236]

How would they work in super cold conditions

[@AudioAddict.]

Could i wire my LTO 6.0 down4sound battery directly to my jp40? Or should I run a separate power wire from the alternator to the LTO 6.0?

[@frozencreativellc]

Even with an isolator, you wouldn't recommend using this with an AGM? What about us folks that have vehicles with a regular battery and a start/stop auxiliary battery?

[@BigUchieGurb]

This is what I’m trying to find out

[@Rodneyroberts43]

Can u use this battery for solar uses

[@ceavalencia4767]

Could these possibly be used for let's say hydraulic system in a vehicle?

[@imlurkn5291]

Hell yeah

[@stevelaster1437]

Can you use these with the yinglong lithium cells

[@74midwestbass74]

Nice!!!

[@74midwestbass74]

Is this really jp?

[@edud8452]

@@74midwestbass74 I think is a scam?

[@74midwestbass74]

@@edud8452 ME TOO BRO!

[@nickstalhood5380]

I love this and am seriously considering it. You say delete the underhood battery, so will this have the proper cranking amps to start my car? Also does it require being precharged with a lithium charger or is it plug an play?

[@thickpackage4392]

No u gonna toast your alternator

[@nickstalhood5380]

@@thickpackage4392 ok how so? Thats kimda the question asked previously

[@Chris_Currie]

@@nickstalhood5380 I'm wondering the same thing. Can you simply replace your vehicle's starting battery with the JP40 (obviously mounted inside and not under the hood)?

[@TheDoozie43]

Or you can get an XS power Titan 8 s5 (12v) or s6 (14v) or s7 (16v) lithium titanate battery for under hood. They look just like a regular agm and are meant for under hood. Jonathon sells them also. They also have supplemental batteries for the back. The 3400 s5 I bought weights 9lbs and handles up to 6k rms depending on your alternator. $700 with coupon code for 5% off. Believe you would need to stick with the same line for out back though. I need the Titan 8 supplemental that will handle 2500rms and it’s about the same price.

[@diantrecreagh3269]

@@TheDoozie43 thats how they get you

[@biggsouf350]

Love them

[@adamsdiyandrandomvids5379]

Is there room for expansion when they heat and cool. I need a better job so I can afford this stuff

[@thomassaballa]

Jp gotta come out with subwoofers now lol

[@jnichols3rd]

I have a hemi ram, it has a stock 240 alt, will this start my truck if I delete my factory battery

[@bashns7743]

JP do you guys carry Fi audio? I know its not on yalls website but i thought id ask anyways. And what do you think about Soundqubed?

[@jj1479]

No. Fi sells directly to the customer off the website.

[@JustEnufCustoms]

These are amazingly nice. Can you just run a 0ga or more run from alternator directly to battery and leave your stock battery installed? Or do you have to completely remove the stock battery? Thank you and again great product this is going to look dope lined up with amp install. ✌

[@brian_zx6r]

No . You can get a dual alt bracket & h.o. alt, leave stock alt for stock electrical & h.o. alt only for the audio lithium battery in the rear.

[@418lightning8]

just a dumb question but for the offroad guys would you say it is water resistant or proof and can you do a video in detail about horns

[@THELIFEOFPRICE]

No it isn’t

[@lacinedoukoure7465]

Can you recommend me one for 2018 honda accord My alternator output 135 Just want to run 2000W systems mono and 4 channels

[@diingleberry96]

You're talking about eliminating the front AGM. Can I use one of these to crank a vehicle?

[@THELIFEOFPRICE]

Sure just has to be mounted in the back

[@TheRockabillyArts]

@@THELIFEOFPRICE I guess one question would be around cranking amps/cold cranking amps. My project has a massive big block in it and needs somewhere north of 900 cranking amps. Would doing something like a pair of these still be able to turn her over?

[@tylerjohnson1553]

I just bought the JP 40 and I have a durlast platinum agm battery under the hood can I use a diode battery isolator to completely separate the batteries I have a factory 150 amp alternator and I bought a Victron Energy Argofet Battery Isolators 200-2AC (2 Batteries 200 amp) to separate the battery will it work I’m running a salt 3 k and a salt 200x4 and 1 15 ZV6 in a D4S custom box I’m running stinger 0 gauge wire and audison voco speaker component of front coaxial and the rear stinger x series rca and a KENWOOD DMX957XR ) head unit

[@tylerjohnson1553]

Or can I run a antigravity lithium h5 battery will that work because XS power doesn’t make a battery for my 2018 Kia Forte

[@bigworm6635]

$1k price friendly lol 😂 That’s for serious bass heads only. Most are gonna buy a cheaper $1-300 one

[@caydenwilson707]

Cant get a 40ah for that cheap lol

[@everdayjack4971]

You get what you pay for

[@ruckusenclosures7034]

You can get 70 ah of yin long cells and bars for $900 and support WAY MORE POWER .

[@Ninjasraynonu3]

@@ruckusenclosures7034 agreed, plenty of other options from the price range

[@beardedforlife3740]

@@caydenwilson707 you can build a 96ah headway bank for under $500

[@brettday8450]

Would a big 3 kit still be necessary with a high output alt?

[@eddiemaravillas9879]

Yes it will help out alot

[@david029014]

Is it possible to get this in red to match my jp8 and jp95?

[@brunom1280]

What's the difference with this and lto cells?

[@rubenavila8012]

I have jp 63 and don't no what to get I watched so many videos lol 😂 one or two of these 400alt

[@K-Effect]

Can I put them under the hood? Will they take the heat of being in the engine compartment?

[@THELIFEOFPRICE]

Answered that in the video but no you can’t mount them under the hood. They are to be mounted inside

[@MyBlowncobra]

I'd like to know what cells are inside so I can read about them..

[@vincemccarty8787]

Are these able to be rebuilt after they go bad?

[@Joe_1776]

What's the difference between these and headway cells? Besides the massive price difference.

[@evilinside5984]

POWER!

[@eliezerbrito301]

What can i mixed with a regular battery

[@goonproductions9817]

Can you use this for a solar set up???

[@Bugglebub]

Technically yes but don't. It's $1000 for only 40ah of reserve capacity. These are for fast discharge and fast recharge systems. Not made for slow drain, high reserve capacity systems like solar.

[@steverasisto7654]

Hey Jp can you use the jp40 with original atm up front but a 200a dc to dc charger to the jp40 also is 1 jp40 enough to power 6000 watts consistently or more need to be linked together? Looking for to your reply I’m dying to finish my audio system i called the sales number and they never got back to me

[@steverasisto7654]

Agm **

[@Doing150s]

Only battery you can use under the hood is a xs power under hood cap bank sb series. But you can do a battery delete and this will run the audio and the car. I would need to know what you are running but it claims it will do 6k to 12k if you look on the specs on d4s it will show you charging and what you will get out of it.

[@S_BLAINE]

Would these be safe under the hood. Only running 3k watts(if that) I got the Mechman 370. Will the JP40 be safe/legit as the only main in the truck?

[@2008guelo]

Won’t be good under the hood but u could put the battery inside the vehicle or in the trunk.

[@kendellyazzie9201]

So it wouldn’t work with the Xs Power D4800? And it’s under my hood.

[@crttechs873]

Hey jp

[@optionstrader9637]

Im guessing this is using technology very similar to the jy power batts

[@diantrecreagh3269]

lol prolly

[@mylifezach]

My js 390 alt puts my system at 15 volts ⚡️ would it be ok ?

[@todizzle666]

Did u not listen he specifically said do not charge over 14.8 volts is 15v over 14.8?........... did u watch the video if it was ok he would have said it is safe to run @ 15v

[@whodatnola]

Got get 2 of these jp next lvl shit

[@noemartinez5791]

Could you run the jp40 with a stock battery and alternator if not could you run the jp40 alone? And dew we have to charge it ?

[@eighty3boxchevy]

If you get this, you can't mix it with any other battery. You also can delete your stock battery and just run the jp40 alone but not under the hood. Inside the car

[@Doing150s]

You do have to charge any battery you buy. That being said you can run a xsp power sb super cap bank under the hood. The jp40 has to be ran in the car (not under the hood) but you can delete the under hood battery completely and use just the jp 40 again has to be inside the car.

[@jacksonladore4664]

I wish the shipping is the same to Hawaii

[@scotthilliard8406]

Just wondering why your not using your own batteries in the Tahoe instead of the xs power cells. Not hating. Just wondering

[@ATownPyro]

Free shipping to Hawaii?

[@dylan4505]

I like the design but the price is to steep for me, you can get 2 banks of 45ah yinlong for the same price or could get cmaxx as well

[@Marcus_1215]

How much amp draw does each has to give out

[@DanyoPJr42o]

If i bought 4 JP40 Lithiums would i need to buy 4 Battery Monitor Modules to Monitor all Batts connected wit Buss Bar? Or would 1 Battery Monitor Module be fine when running all of them together?

[@Doing150s]

You only need one to control what ever amount of jp40

[@DanyoPJr42o]

@@Doing150s Ok got it thanks

[@kswis]

I really like the case. Thats hella dope. Not so sure bout a $100.00 voltmeter though. I also feel Lfp can be ran in parallel with agms, lto shouldn't but can be with isolators. Ideally you have 1 chemistry of battery in your build though but I'm using ultracaps, 256 ah of lfp and 2 agms with no isolators. Been in for over 2 yrs.

[@charlespetersonii6989]

I have been on the fence wheather or not to put a Lifepo4 battery in my trunk as extra capacity with a stock AGM up front. If you let your vehicle sit for a few days is everything still good? Also with your batteries did you build yourself or use a battery with bms already in it. Thanks

[@rickeyredz]

I thought lithium and agm battery don’t mix?

[@Zippy3435]

I know this video is older but, I'm running a factory alternator 150a. Can I use this to be able to run a 3k amp without damaging my stock electrical? My vehicle dosen't have any aftermarket high output alternators avalible to purchase. I already had to put a new alt in the car becuase it killed ( I know was asking for it running stock). If so I would gladly by one of these and a super cap for factory battery replacement..... I miss bumping any help would be appeciated.

[@THELIFEOFPRICE]

Yes no problem

[@Zippy3435]

@@THELIFEOFPRICE thanks for the quick reply!

[@tavozuniga7364]

What type of car do you drive? That there's no alt available for your vehicle

[@Zippy3435]

@@tavozuniga7364 2009 mercury Milan I'm not trying those sketchy sellers, always heard bad experiences so trying to avoid it