Bluetti B300K Tear Down! Build Quality Revealed!

[@cryptowolf-zf3fs]

Just ordered the 300k for the 200Max. I live on the Texas Gulf Coast where A/C is mandatory and I figure I can go 11 hours on a 5,000 BTU window A/C unit using the Max and 300k. I can deploy the solar panels and in theory go days without using my gasoline generator. I went through the blackout in February, 2021 in Texas as well as several hurricanes over the years so backup power is critical. I have an AC 180 as well and hoping a cable setup will come out for the 300k and AC 180.

[@DYT-jx4jp]

Nice surprising twist = seeing inside :-) Thanks for effort to show that and the review!

[@johntate5284]

It's fun to see what's inside and both Bluetti and EcoFlow well constructed and engineered. WaveformScience really knows his stuff and does some of the most in depth testing and the video you reference is definitely worth the watch. Glad to see you tear down a product:) With regards to the AC200L, i think the older AC200MAX is by far the superior product with the exception of AC charging / UPS. As i already have 3 of the D050B charge enhancers (one the AC200MAX and 1 each for the 2 B230 batteries), i can get 2300 watts of solar and being able to access all functions without the need of a cell phone is a big plus. Time for some fall camping!

[@Jasonoid]

The Bluetti AC200Max is a beast. If you are charging with solar, it's plenty powerful :)

[@davelamont]

It really is a work of art.

[@mrp55net]

In addition, the AC200MAX, with the D050S, can be charged from two separate PV sources. Can't do that with an AC200L. I have a 300W CIGS array on my truck's cap (which I use while driving) + PV200 solar panels that can charge my AC200MAX. With the DC-DC charger installed, I can keep the powerstation topped off while on the road.

[@Ethan.s..]

I share your opinion in the ac200max having some advantages. With a D050S charge enhancer I can charge my max at a peak 1421 watts via solar. The AC200L is nice, but not worth upgrading to in my non ups setup. The AC200P L with it’s extra 256wh is tempting though :D

[@johntate5284]

@@Ethan.s.. I had forgotten about the AC200P L with the extra capacity. If they would put that on sale for $1099 like they have done with the AC200MAX, i would consider it too XD

[@st8kout961]

I use all 6 PV inputs on my bank of 6 B300s. I've already maxed out the two AC500 PV inputs (1500W each) so this is the only way to add more solar panels, which I happened to have left over from other solar experiments. It's a great way to use any panels you have left over or found cheap on Craigslist; you just have to stay within the Voc range. The SOC won't directly recognize the extra inputs, but when you look at the individual battery management on the APP, you can "balance out" the battery charges. For instance, one battery was always last to reach 100% so I used my highest output panel on that battery, and the lowest output panel on another battery that was always first to reach 100%. Now they run neck and neck with each other. I was a bit disappointed with pricing, esp having to buy a new $108 cable for each B300K. It's really not worth the small savings in the tradeoff, IMHO. Maybe if they have a Christmas sale I'll take a 2nd look.

[@fscottgray9784]

I just received mine this week to go with the AC300 that I ordered on their labor day blowout sale. It is a big heavy brute but sits nicely under the AC300.

[@Jasonoid]

I like the more simple design and smaller form factor! Cheaper price helps too!

[@KatysCampKitchen]

Loved seeing inside the battery! Thanks Jason!

[@Jasonoid]

Glad to hear you enjoyed it 👍 thanks for stopping by!

[@todd.parker]

Cool teardown Jason, looks really clean inside and it's a much better value. I like the idea of the extra I/O ports but, like you, I never actually used them. It' since they now offer multiple options.

[@Jasonoid]

Thanks for sharing your feedback, Todd!

[@tumbleweed1976]

Thank you Jason. My Ecoflow Delta 2 has had 12v charging issues and comparing to another company helps.

[@davecroft2991]

Thanks for the info. I appreciate that the price point is less but for my use case, AC180, I'll probably keep waiting for 3rd party golf cart batteries price to come down then buy on of those and connect it to my AC 180. While I'll be limited to about 480 watts coming in that's still great for my needs.

[@garagejim1956]

Thanks Jason, great review the teardown really took this review to higher level. The only drawback for me is the need for the heating pads.

[@Jasonoid]

Yeah, you'll need to buy the B300s for that feature.

[@twloughlin]

Thanks Jason!

[@briant2259]

I have the AC300 with B300's and it is charged only by solar. I have never charged each battery separately since there is enough solar to the AC300 to charge them all as you mention. So the B300K might be good for people using it as a home backup. Plus it weighs less than the B300 ! And thanks for the tear down, it is interesting to see what is inside these things I keep buying. HaHa

[@i_LOVE_solar]

Wow, I've always wanted to see inside one of these batteries! Great video, Jason :)

[@Jasonoid]

Thanks for watching!

[@drizzt8965]

Hey Jason I'm at the AsqMe page and I am not able to say that you have answered my question about the Renogy 400w folding panels that I am pairing with an Anker Solix f2000, you did answer the question and made recommendations! Thank you for the help!

[@Jasonoid]

So I'm a little confused with your comment. You did or didn't get my answers via ASQME? Sometime the response goes to the trash can. You also have the ability to follow up with a secondary question or two if needed 👍

[@drizzt8965]

@@Jasonoid Thanks for responding, below your answer at the bottom of the page I'm given a choice of yes or no whether you answered my question or not, when I choose yes ASQME says they cannot process my response at this time. I wanted to make sure that you knew you did answer my question. I have taken all of your advice and ordered the different things that you suggested. I appreciate your expertise and thank you! Can you recommend a solar power for dummies kind of a book? This is a completely new interest of ours...

[@Jasonoid]

@@drizzt8965 I don't know of a book but I have a beginners video here: kzbin.info/www/bejne/hYvZo4erna-bjtU

[@drizzt8965]

@@Jasonoid I found a book that is well thought of "Off Grid Solar Power Simplified" written by Nick Segers, free on Kindle. Thanks for your time and the link I will watch that tonight.

[@goodcitizen4587]

That looks really cool. Thanks for doing the teardown.

[@Jasonoid]

You bet!

[@goodcitizen4587]

@JasonoidReview That's awesome!

[@Ethan.s..]

Nice video Jason, thanks. Question, is the capacity on this B300k the same as on the B300/S, but just with a more conservative rating? That 94% (iirc) efficiency is higher than we’re use to and you noticed it’s 3kwh capacity when peaking inside. For me with an AC200Max & 2 B300’s, I use the additional ports to maximize solar input. I could definitely live without them with an ac300 though.

[@Jasonoid]

I haven't torn down the original batteries so I'm not quite sure what's inside those / their capacity. I also couldn't verify the actual capacity of these cells, this video was just an educated guess since the QR code didn't bring up info.

[@leaseholderLeaseholder]

What is probably interesting too, is whether B300K batteries can exceed the limit if two being connected to AC200L. Why it is not possible, if daisy chain technology is already used?

[@Moutarde-o2z]

Always interesting. Thank you. It would be useful if you were to provide more information on the technical description(s) of the battery technology (and what the components on the motherboard / BMS do - if you are familiar with same).

[@Jasonoid]

I tried to find the LFP cells used in the battery but scanning the QR code didn't bring any results.

[@douglaswindsor120]

Still waiting for someone to do a test on the everest art 2000 power box as it's affordable and sold by Princess Auto all these units sold in the states are not affordable up in Canada since most seniors don't have access to the kind of affordable that you concider affordable by the time you add 30 percent for our lower dollar and sky-high shipping it's double what it cost stateside so one that's affordable up here that has a review done by those that will do a proper review would be great and proper reviews would do like it did with the products that have been reviewed made them better at least i have come across any prepper reviews when they do a review better steer clear

[@douglaswindsor120]

Dam auto correct the unit is an everstart

[@kcgunesq]

@@douglaswindsor120 Do you mean the jump boxes that they sell under that name at Walmart? I don't see anything like that at Princess Auto. I see they sell a 1,200w Massimo power station.

[@RandiG63]

Thanks Jason

[@SamPowell-s3g]

On 16 Nov. '24, I ordered two B300K batteries. Afterwards I came across a youtube video that said when paired to the AC200Max, the 300K's would not be "woken up" by the Max when solar input came into the Max to charge it. As I'm sure you know, the Max will "wake up" automatically if it is off when solar input comes to it. So, is it correct then, that the Max will wake up everyday when the sun shines upon one's array, but the B300K batts will not begin charging unless they are turned on manually? TIA. Your videos are standard setting! Sorry, Jeff Hagen's video about the b300k confirms that the Max will not turn the b300k on around his 12 minute mark.

[@Jasonoid]

Im pretty sure the B300k will need to be turned on manually if you want it to charge.

[@johnmal5975]

I think it was a smart move by bluetti; Speaking of smart moves did you see that press release about eg4 equipment? They are all emp proof even if you already have one.

[@Jasonoid]

Nah I didn't see that announcement. I'll have to look into it!

[@johnmal5975]

@@Jasonoid If you go my solar addiction with David Newman he did a video on it along with the links. Good stuff!!

[@macc1316]

been looking into one of these for my 200max in my campervan but I don't have room for it to sit on top of this. would the b300k be okay to be stood up on its side? would that hurt the battery?

[@californiamusic]

Good stuff, thanks!

[@Jasonoid]

Glad you liked it!

[@whcurl]

Thanks for the video...I'd like to stack my AC200Max on top of the B300k, but the ports are on the wrong side. Do you see a problem with the B300K being upside down? Any structural or electronic issues with that? Thanks, I enjoy your great videos!!

[@Jasonoid]

It would probably be better to just have the B300k facing backwards instead of having it upside down.

[@whcurl]

@@Jasonoid Except the power button would then be against the wall in my campervan... so in an inverted orientaion, would the batteries be suspended or are they solidly sandwiched in the case? Thanks!! Appreciate your reply!

[@Jasonoid]

@@whcurl I guess having the battery upside down is the only option. The batteries felt pretty secure in the case. My only worry would be the breather valve is located on the top of the battery so maybe that will leak if it's mounted upside down. Might be best to reach out to Bluetti on this one.

[@suklee1400]

Did I understand you correctly, you can connect 2x B300K to an AC200 Max? One B300K to each of the Max's two battery connection ports? Seems logical, I originally connected 2x B300 batteries to our Max. Just want confirmation from he who knows! I have 4x B300's connected to an AC300, but they will be three years old this December (2024). I'd like to expand storage for the Max and use it more often, but I believe running the same type and age of batteries in one system is considered a best practice. Yeah, I'm ignoring the Max's own internal battery which will be three years old end of this month, but I rarely use it. What say you? A new B300K, or two of them, with a three year old Max -- any downsides there? Thank you. You're exceptional, I always look forward to seeing your videos.

[@Jasonoid]

Two B300Ks should work just fine with the AC200MAX. I don't see an issue using these new batteries with the older Max power station.

[@СергейКлитко]

Спасибо, друг! У меня вопрос. У меня bluetti ac200pl, хочу купить батарею расширения, bluetti b210p(2150 wh) или b300k(2768wh). Вопрос. Что лучше купить b210p и подключить солнечную панель, жертвуя 600wh, или купить b300k на 600whбольше? B210p удобное подключение с одной стороны, а b300k батарею нужно разварачивать, чтобы подключить. У меня есть 2 солнечные панели на 1.2 kw очень хорошо и быстро заряжают ac200pl. Спасибо .

[@DaMerk5]

In Canada the B300k costs $1600 for less than that I could pick up a 51.2v 100Ah LiFePO4 with 5.12kWh total...I wish there were ways we could connect to just an external LiFePO4 without having to pay the premium for proprietary stuff

[@andrewr05]

You can just take that battery and directly plug it into your PV input port on the models that accept up to 150 volts of DC input. Granted you would also have to buy an external charge controller if you want to charge it via solar, or you can just get a 48V AC charger and charge it that way.

[@billy2bob63]

Jason would you buy one of these over the B300 if money didn’t matter? So the B300 has 3072Wh and this less so besides price point what's the better option?

[@Jasonoid]

Price is kinda the main point of this battery. You get more battery capacity for your money. I guess if money didn't matter at ALL I'd choose the B300 since you get the additional charging port and slightly more battery. Having more capacity is the most important part of a backup system.

[@billy2bob63]

@Jasonoid Thank you Jason! That's my thinking also.

[@MrFirehawk1]

You need at least a 3k battery for the energy tax credit.

[@indysbike3014]

Does it have self heating like the B300s?

[@Jasonoid]

This battery does not have the heating pads.

[@robertlee6781]

Now if Bluetti would make a cable that doesn’t take up so much space.

[@Jasonoid]

If you give the cable a little twist, it loops it within itself and takes up half the space. I agree though, 90 degree connectors between batteries would be EXCELLENT! Kinda like the EF DPU right?

[@pierredenonville8915]

how do you charge this battery

[@Jasonoid]

It's an expansion battery for Bluetti power stations, it connects to them and charges and discharges automatically. Works just like Anker and EcoFlow expansion batteries.

[@jampam-jf8mt]

Does it works on ac70 and ac180?

[@Jasonoid]

@@jampam-jf8mt no, there would be no way to charge it back up. It can discharge with a special cable into those models, however you need a larger power station to charge it up.

[@pierredenonville8915]

@JasonoidReview Hi Jason you added a note this sections from you tube were included in the giveaway. You turned out to be the to be the champ. Did I win a giveaway?

[@toddincabo]

👍

[@bigtom4709]

So, get an EG4 LL and a charger for $1,300 and have >5KW and 48v charging, huh?'

[@EasyyokeFilms]

$1300??? EG4 chargeverter is $500, EG4 5Kwh is $1500. Making $2000. Where did you get your $1300 from if I may ask?

[@Jasonoid]

There are great options for both DIY or prebuilt systems. It all depends on your skill set and what you are comfortable with.

[@bigtom4709]

Great explainer though.