A Look Inside the Bluetti B300K hey everybody welcome back to a new video here on the table I have the brand new bluetti B300 K and you can see that I've completely torn it down now what's interesting about the B300 K is that it comes in in a smaller form factor and also a more affordable price now I've never seen the inside of one of these batteries so it's pretty interesting to see it torn down now as I've been tearing this down I've been very impressed with the build quality and organization of this battery and you can see it's just laid out here on the table I have the shell over here there's a support system for the main board and BMS you have the main cables that go to the expansion ports and connect up to the BMS here and right here you have the actual battery system now the internal batteries for the system are extremely rugged these are full metal cases that the batteries are enclosed in there are two of them you have the fan over on this side and it blows air through the middle Channel now you do have the ability to remove these and it will expose the internal cells now this is cool because they've actually swapped over to Prismatic cells now what they have here there are 16 modules and there's actually 32 batteries so there are two batteries per module and you can see these are all wired in series this is an 8s combo and then this is another 8s combo and they use a jumper over here to wire it together in a 16s configuration for 51.2 Vols nominal now right here you have the balance leads for each of these packs these connect to each of the cell cells individually so the BMS knows the voltage of each cell and can balance everything out now these Tabs are all laser welded together it's very organized and looking at this breakdown this is rated for 54 amp hour so it appears that they're probably using two 30 amp hour cells in parallel and then they wire all those together in series so a 16s 2p configuration and they do probably down rate the capacity cuz they won't take it all the way to 0% and that's probably why you see this rated at H 2760 W hours instead of 372 now I will say that's my best guess because I am not able to pull up the spec sheet for these sales I did peel back this layer here and scan one of the QR codes and it did not pull up any information in my app so I'll put that up on the screen if you guys can use that QR code for uh finding any information out about these sales cool throw a comment down below but these do appear to be high-grade new uh lithium iron phosphate cells just did not have any information using that QR code so it's super fun to actually see what one of these looks like on the inside I've never seen one torn down before you can tell a lot of engineering and design comes together to get everything to work now what I'm going to do next is put the battery mostly back together so you can see what it looks like without the case on just with everything organized and clicked together then we'll put the case on and jump into a few tests on the b3k [Music] so we're almost finished wrapping up the complete assembly process I thought I'd show you guys just what it looks like before I put the outer case on so this side here is where you have the battery expansion ports and you have some massive cables uh so positive and negative here and also the communication cables that go in for each expansion Port now right here you have communication to the front panel where you have the power switch and the indicator and the USB Port so if you flip that around you can see that you have a circuit board with all that built in and then this connects in to that right here so that's kind of cool how that comes together you have the balance leads for all the cells and the fan is connected as well so everything is now uh connected up so we'll finish the assembly process okay guys I finally have the battery completely assembled now I want to make sure that it at least works so we are going to hook it up to the ac200 l so I'm just going to plug in this cable here into one of the expansion ports and we should see on the screen that uh that uh this is connected so we'll turn on B station and it turned on the battery the Fan's going and within a couple seconds you usually get a battery icon on the screen yep so do have a battery icon there so it isect connected up let's go Basic Testing ahead and do a capacity test now the total capacity of both units here on the table is 4812 WS I discharged this at A2 seat rate until everything shut off and the wattmeter was showing 4,430 WS after the test had finished now there's no exact way to determine which one provided what power but in previous test I was able to pull around 1830 wats from the ac200 L so if we do the math that's around 2600 wat hours from the 300K battery or right around 94% of its advertised capacity so after that testing we now know that this has an estimated usable capacity of around 2600 WS so whatever blued power station that you connect this to you can expect that additional capacity now the only additional output on the B300 K is this usba a port so let's plug in my USB tester to see what type of power we get from it so we are showing the DCP Proto which is dedicated charging port at 1.5 amps and we are pulling a little bit more power at 1.9 amps so we're seeing almost 10 watts from this port now blue Pricing Information Ed released this battery for people that are looking for a more affordable and more simple option for example on the front you don't have any 12volt outputs or USBC power delivery ports you only have that one usba port and on the side of the power station you just have the expansion ports you don't have any built-in charging so in that way they can save on cost costs the battery is actually a little bit smaller than the other options because it's just a battery inside so let's check out the pricing how this compares to the other batteries from bluetti now up on the screen you'll see the most popular expansion batteries for blue ett's large power stations starting with the new B300 K the B300 the B300 s and the b230 now they have the prices listed right below them and if we break that down to a price per wat hour you can see the blti B300 K is actually the most affordable option at only 43 cents per wat hour all the other options are 52 cents and above now if you are interested in picking up the bluie B300 K bluti did provide discount codes for you guys I'll include those down in the video description both for Amazon and their official website now in the final section of the video I want to talk about the compatibility of the B300 K with blue Ed's power stations now it gets pretty complicated when you try to mix and match and for that reason I'm going to include a very very detailed video down in the video description um it's actually through waveform science or Jeff Hagen I actually had the chance to meet Jeff at CES this year uh super cool guy and he provides a ton of excellent information at the end of his video about mixing and matching um different blue AI batteries with different Power stations I'm just going to give you a simple rundown and if you want more information make sure you check out his video thank you so much Jeff for providing such a great video about this topic so this battery the B300 K uses the 90 AMP charging cable now this is the same battery cable as the ac300 and the ac200 L and the ac2 200 Max so just by default it is compatible with those three power stations so if you have the ac200 L or the ac200 max or the ac300 without any weird changes adapters you can use the B300 K now if you want to use the B300 K with the ac500 you do have to purchase the adapter that goes from the 90 um amp port to the 150 amp Port so it will be compatible if you purchase that adapter now I will mention as well that the ac200 L the new model does not support multiple batteries that are different when they are being Daisy chained so I tested with the uh the blue Eddie b230 and the B300 K uh Daisy chained into this power station it did not work I got an error on the screen about some sort of BMS problem um but either of these batteries separately work with this and from my understanding if you have um two of the same batteries it will daisy chain just fine it just does not do mismatch batteries now if you have the older ac200 Max it actually has two expansion battery ports on that power station so from my understanding you should be able to connect two separate batteries that are different and they'll plug in and it should work uh just with the firmware right out of the box like I said Jeff Hagen's video does a really good job breaking down he has a full chart about uh the compatibility uh of different batteries with the B300 K and what power stations they work with now guys let me know what you think about the new bluetti B300 k um I love that it's more affordable and more simple and personally when I use the ac300 and ac500 I never really use the additional input or output options on the battery itself because the power station already offered enough solar at 2400 Watts for the ac300 and 3,000 Watts for the ac500 so I'm interested to see what you guys have to say about this new battery its price and the lack of ports on the front or the actual charging ports on the side now guys thank you so much for watching this video I'll recommend a couple of the videos that you guys can check out I really appreciate it make sure you smash the thumbs up button on the way out we'll see you guys in the next video