Bluetti EB70 - Let's look inside.

Another LFP battery power station. This time we get to take it apart before anyone takes it on holiday. Have to say I'm very impressed with the construction and material choice.
Get one here - bit.ly/3JbWJcd
Discount code: BLUETTIDavid

[@yyuhd]

Great teardown. You should get a spare LiFePo battery, an XT90 splitter and connect it to the Bluetti in parallel for extra capacity and test it.

[@Yhoothoob]

Would this actually work?

[@yyuhd]

@@Yhoothoob yep, but it has to be the same voltage and Amp capacity as the original.

[@manuelreyes3941]

Hola buenos días usted me puedes mandar el manual de servicio de la estación Bluetti modelo EB70S

[@jimsarranadventures3005]

Nice review as usual from you. Build quality looks good, it might even stand up to our Scottish weather.

[@jameswright1641]

Nice review of the EB70. What I don't like about it is the display. It would have been easier if it indicated power in hours and minutes instead of those battery bars which make you guess.

[@DavidMcLuckie]

I agree. A runtime indicator would be major deciding factor in the purchase.

[@user-fs4fd3gv3r]

Run time indicator is useful only if the load is constant

[@dalerobinsuk]

Bit of a design flaw with those mains sockets, that could cause arcing or overheating of the plug and socket, especially for an "average" user. They have designed it for the rest of the world but just fitted UK sockets to it and not considered the flex coming out of the bottom of the plug. They should have modified the mould for the main body to have a recess or put sockets in that stick out a bit further. Nice to see the separation around the cells for airflow. The colour looks very much like Weller soldering stations!

[@tonyptah8868]

Could the plugs be packed forward?

[@Trailer-fo9vc]

Yep ....that's what happened to mine . Total junk !

[@plux67]

Thank you , I just ordered one of these and now I know I did not make mistake .At least I hope so.

[@Trailer-fo9vc]

Cancel your order .....they are junk ! Get a echo flow for half the price and better quality ... Eb 7o is a flawed product

[@plux67]

@@Trailer-fo9vc I do not think so .I am very happy with EB70 , all what I wanted.

[@Trailer-fo9vc]

Why would you order the eb70 and not the 70S....eb 70 is a flawed product that's why they are dumping at low prices and have moved on to the 70S.

[@grofam9888]

Great video, thank you

[@budmartin3344]

Great tear down. So what is the Voltage of that battery pack? I also have EB70 US version.

[@jamesemery1]

xt30 very low power connections max 30 amps and (23:54) yes its a shunt. It's the same technology used on drones. EVPs just looks like a reseller looking at their website. really nice case, there is a lot of heat above the cells and those two fans won't move the heat very quickly. I'd still build my own rather than buy a prebuilt unit. Have you thought looked any further at building your own?

[@user-fs4fd3gv3r]

You're not saving much money by building your own. Maybe £500-550 with all the same features and cables and a custom made case with handle.

[@jamesemery1]

@@user-fs4fd3gv3r buy raw cells and a BMS and cheap inverter and a cheap Desktop PSU to charge and a couple of fans and a usb module stick it all in strong plastic tool chest and you'll save loads

[@hgvdweg]

My EB70 gave SHORT on the display, nothing worked anymore, opened it up and the XT90 connector is burnt black and even a piece of the copper has molten!

[@zarmindrow5831]

you disassembled the shit outta that Bluetti yo

[@demil3618]

Nice review. So how long does it last on that 800W heater when fully charged?

[@DavidMcLuckie]

Quick maths. EB70 has ~700 watt hours. So it could run 1 watt for 700 hours, or 700 watt for 1 hour. An 800 watt heater would be about 50 minutes runtime.

[@sksupply]

Thanks. I was looking for this, so I can paint this Mint Green abomination.

[@currentlyhd7649]

Does this have low and high temp cut off protection?

[@Mevi]

The DC7909 connector for charging is much too fragile. Mine is already a bit fussy and is less than a year old - warranty doesn't apply as it was a freebie KZbin review unit. I came back to watch this disassembly just to see how likely it would be that I can replace the port when it eventually fails. Also unlike other brands this is the ONLY way to charge the power bank.

[@airgun1974]

mine melted, put a new end on the charger seems still to work but for how long.

[@darkijah-andersjehovahsn7893]

I've found out that the DC7909 plug can actually click... but not in the EB70, it is way to slick in its insertion and no clicking as I have found other DC7909 females to be able to do, while looking around for bigger and other DC7909 plugs. Also some of those DC7909 plugs you need to cut off some of the plastic. But it bothers me that they would not even fix the female plug with a click for staying in the plug like clearly have found out to exist. The EB70 7909 pulls way to easily with nearly no resistance :/

[@stubarnes1965]

I suspect the 1700 to 2000. watt rating is a full power rating dependent on whether it's fed 220 or 240 volts

[@DavidMcLuckie]

I realised this as I was editing. :)

[@maxhammer4067]

when charged then turned off will the power decrease when not in use for a week, and in can I charge it a week in advance and it be 100% when I actually use it. thanks , great channel 👍

[@DavidMcLuckie]

It and everything with a battery will self discharge. But it will do it very, very slowly. Like after a week you're likely to still be at 99.9% of full.

[@maxhammer4067]

@@DavidMcLuckie And what is the best solar panels for it, as the bluetti ones are not waterproof, so I'm thinking that may be a problem at some point. Any experience with them yourself 😀

[@ChrisJohnson-pd4hh]

@@maxhammer4067 In the UK I bought a 200 watt panel from Hampshire Generators. They claim it is totally weatherproof and it is two panels that open out with metal fold-down legs. Exel 200 is the make. I did need to get a new cable to connect panels to Bluetti. Hampshire Generators have them. The other thing about these panels is the price. The Bluetti panels were £499.99. The Exel £299.99.

[@garethwilliams2173]

Great video. Mine loses one % point per hour if the DC is switched on. I wonder if disconnecting the wireless charger (which I don’t need) will stop this. I also wonder if one could wire an external set of cells in parallel (at 7x3.2V) to the internal one to increase the capacity.

[@frederick6008]

To be fair, with the cover off the fans aren't allowed to blow through the heat sinks.

[@MrYurgess]

Maybe you know what type of transistors is on the inverter IGBT or MOSFET xnf20N60t Thank you!

[@jimmybrad156]

I bought one. Good build quality and safe lifepo4, fair number of DC outputs, but: there's no battery isolator, there's no dedicated button to make the screen stay on, there's no battery voltage displayed, it doesn't show power factor and AC amps, the battery state of charge indicator has multiple flaws, like slowly creeping up over a few seconds instead of getting straight to the point, only showing twenty percent divisions instead of one percent divisions, and showing it as being dead flat when it's no where near flat. Nice handle and corners. For outdoor use it should have flaps covering it's holes. Work those flaps Bluetti, show me all your charge! Oh and the charger pack's fan runs regardless of anything else including temperature. Use a fifty cent thermoswitch Bluetti! It's also lacking other DC input socket types.

[@goodoz9942]

Hi David -- can you confirm that the battery bank is 24VDC? I blew something in my EB70 when I accidentally connected it into the wrong array (smoke!) so I need to figure out a new way to charge the bank. All else works just fine. Did you meter the main XT90 that connects to the main board and confirm there is 26+ volts there?

[@manuelreyes3941]

Hola me.podras mandar el manual de servicio de estación Bluetti modelo EB70S

[@hgvdweg]

I measured 23.3 Volts, unsure the state of charge because of a sort in the mainboard😢

[@goodoz9942]

@@hgvdweg It is a 24V bank. There's a good set of +/- connectors on the board above the cells. I was able to (easily) terminate 2 short 10GA cables and run them through a small hole I drilled in the side of the case. The other side is terminated with an XT connector and I use an external LiFePo4 charger. It charges it up, quickly and with no problems. The unit does not display state of charge anymore as my new charging method bypasses whatever shunt is inside of the box. I check voltage at the XT every now and again but usually top it off every 5 days, or so. That box's sole purpose is running LED lightbulbs which only pull 4W ea.

[@franciscojdeandreasanchez5486]

So David, after a second view of your review at 28:34 you do point out two 60amp fuses below the battery back in the hardest to reach location of the unit. Are they actually soldered on ? And they they seem like proprietary type fuses. So, difficult to get at, soldered not user "friendly" and proprietary. Don you coincide ? Aside from these 2 F1 and F2 there don´t seem to be any more. Just a current shunt near the XT90 connection. So it seems in case of issues they fuse or shunt replacements are very hard to get at. Thanks for your reply on my "new" doubts.

[@DavidMcLuckie]

I expect most of these powerstations have a soft dead short detection and the fuses are there if things really go badly. I don't think anything inside is designed to be user friendly, but at least it comes apart easily enough.

[@jimmybrad156]

I think the heater means a maximum of 1700 to 2000 watts.

[@randallgd]

Need some expert advice please!! :) I am a newbie with solar and these portable power stations. We are doing a two month long camping road trip using a van where will be basically living it without ever using any kind of shore power. We live in Idaho and will be traveling into backcounty of BC Canada on this trip. I bought a 12volt portable fridge off Amazon ( VEVOR 12 Volt Refrigerator, 53 Qt Dual Zone Car Fridge) and a ACOPOWER 100 Watt 12V Black Monocrystalline Solar Panel. I only have room on the roof for a 100watt solar panal because I have two Roof Boxes to haul extra sports gear. I can't decide betwoon the EB 55 or the EB 70. We drive a lot.... prob some each day doing adventures and sight seeing. I can see where the EB 55 would work with our solar panal and using and inverter plugged into our van for some AC charging. II was thinking this route in case the 100 watt solar can't keep up with the fridge. But I can also see where having the larger battery on the EB 70 would last longer. We don't plan on using the battery for anything elseother than the fridge as we have a genarator (Honda EU 2000) for our cooking ect. My wife rides an ebike so we always bring the generator to charge it. . I would like to not run it any more than possibel as is is loud and vibrates the van but worth it so she can do our biking adventures :) I know I gave a lot of information thank you for reading this. Any help would really be helpful. This newbie would really appreciate any ideas/input. Thank You VERY Much!!

[@DavidMcLuckie]

I'm assuming both are on sale at the moment same as here. Per watt hour the EB70 is cheaper, so you're getting more capacity for your money. Plus it's inverter is more powerful should you need it.

[@darkijah-andersjehovahsn7893]

I wonder.... Heating up, make some bigger holes or something for the Fans should help. Although don't have the tools to test it if it works.

[@oluja95cro]

I have on my eb70 laptop and usb cell phone connected and when 60% battery was left i have start and use 5kw diesel heater.

[@franciscojdeandreasanchez5486]

Hi David, congrats on the ONLY complete teardown of this unit on the web -as far as I know- echoing Andreu, I also have been curious about the existence of a fuse. The AC200P units have much better protections it would seem from reviews. In deciding between units although they are in different categories the price of the AC200P has come down considerably in the last months and it would not seem reasonable to buy a unit with fragile protection in case of trouble which the EB70 does not seem to have. I LOOKED CLOSELY DURING YOUR TEARDOWN AND COULD NOT ID ANY SORT OF FUSE... DID YOU FIND ONE ? IF SO WHAT KIND AND AMPERAGE AND WHERE IS IT. THANKS FOR YOUR REPLY

[@johnthercdriver4730]

I believe the BMS acts as the fuse, it is pretty standard on most bms, but I don't know for sure.

[@abreu9999]

I found a fuse ("F5") next to the input port (connected to one of the voltage regulators). I mistaknenly connected my AC200P charger to the EB70 and burnt the fuse.... Hope it is just that.

[@franciscojdeandreasanchez5486]

I missed that ... I´ll look into that re-watching the teardown video as the customer support for the EB70 purchase is NONEXISTENT AFTER OVER A YR AND COMPLETE SILENCE ... ABREU IS F5 a removable or soldered fuse ? & were you able to fix your EB70 with this F5 solution ? Thanks@@abreu9999

[@franciscojdeandreasanchez5486]

missed that ... I´ll look into that re-watching the teardown video as the customer support for the EB70 purchase is NONEXISTENT AFTER OVER A YR AND COMPLETE SILENCE ... ABREU IS F5 a removable or soldered fuse ? & were you able to fix your EB70 with this F5 solution ? Thanks@@abreu9999

[@franciscojdeandreasanchez5486]

hi again, @@abreu9999 I just watched David´s video again and at 17:55 I can´t see the F5 fuse you mention ... you seem to have the same problem others have had when connecting solar panels exceeding voltage except in your case you mistakenly connected the 200 charger to the EB70 with the same result ... Please let me know if & how you solved your EB70 problem when you can. THANKS

[@indysbike3014]

Can you use another charger which doesn’t have a fan inside?

[@vitplo6738]

Hello! If there is a fuse for replacement in case of short circuit?

[@andreubalcells]

Any news?

[@franciscojdeandreasanchez5486]

Hi David, congrats on the ONLY complete teardown of this unit on the web -as far as I know- echoing Andreu, I also have been curious about the existence of a fuse. The AC200P units have much better protections it would seem from reviews. In deciding between units although they are in different categories the price of the AC200P has come down considerably in the last months and it would not seem reasonable to buy a unit with fragile protection in case of trouble which the EB70 does not seem to have. I LOOKED CLOSELY DURING YOUR TEARDOWN AND COULD NOT ID ANY SORT OF FUSE... DID YOU FIND ONE ? IF SO WHAT KIND AND AMPERAGE AND WHERE IS IT. THANKS FOR YOUR REPLY

[@franciscojdeandreasanchez5486]

Vit Plo, I had the same doubt.. hope this helps: "So David, after a second view of your review at 28:34 you do point out two 60amp fuses below the battery back in the hardest to reach location of the unit. Are they actually soldered on ? And they they seem like proprietary type fuses. So, difficult to get at, soldered not user "friendly" and proprietary. Don you coincide ? Aside from these 2 F1 and F2 there don´t seem to be any more. Just a current shunt near the XT90 connection. So it seems in case of issues they fuse or shunt replacements are very hard to get at. Thanks for your reply on my "new" doubts."

[@Stefanius40]

Do you find Somewhere a Fuse ?

[@darkijah-andersjehovahsn7893]

My DC to DC is broke... Made a mistake and burned the USB port... I think there might be a capacitor that has blown, it sounded like something of that sort when it happened. I'll have to open and see when the battery is dried up.

[@mokrapower5270]

Please tell me somebody, it is possible to remodel this BLUETTI from 110V version to 220V? What should I swap to do that?

[@darkijah-andersjehovahsn7893]

230v

[@jabagalife]

Mi unidad se ha sobrecargado y me da error 036 no funciona ac out, alguna solución? Gracias

[@coreybabcock2023]

Hey Dave my main channel was hacked and taken down so this is my New one now

[@CoolMusicToMyEars]

I would have liked to see Hex Head screws in the unit just a little more strength, plus the quicker assembly with a torque setting the automation line, the batteries made in China 🇨🇳 by EVPS China, yes its well made 👍, for me as a Test Engineer I would go for a UPS sure not as fancy as this unit, but if you only require just mains voltage its a lot cheaper, no it isn't exactly portable, no solar charger but there are ways around that if you require, always nice to see whats actually inside these units, the honeycomb design is Nature's strongest & lighter shape,

[@Trailer-fo9vc]

My port is shot ....wont take charge from any of the three sources ......car...wall...solar........ At one point with the car charger i smelled somthng burning ....ufb You guys are right it should be a "click" . I know very little about the units.. The order and serial numbers were on a sticker that has worn off .....the unit is 12 months old .....ufb... I dont have my proof of purchase so warranty is out ....what a total piece of junk.... Meanwhile you send emails back and forth and never get to speak to a live person.

[@VooDooMaGicMan81]

I actually got a replacement off them..which didn't charge from the mains out of the box, and now charges my mobile phone 5-6 times (tops) off a full solar charge 😂

[@jourdankelly1052]

Curious as to why the technical details say lithium ion when the product is advertised as LiFeP04?

[@DavidMcLuckie]

They all count as Lithium Ion. Lithium Ferrite for the LiFePo4 and usually Lithium Manganese for a typical 'Lithium Ion' battery. There are a few chemical recipes which all fall under the Lithium Ion umbrella.

[@jourdankelly1052]

@@DavidMcLuckie Thanks. So I received this product expecting a LiFeP04 battery but it says lithium ion, like yours. I wanted LiFeP04 because apparently they don't explode like the lithium ion so I'm worried about using my Bluetti

[@DavidMcLuckie]

Another very easy test is the weight. If it weighs 10KG it's Li-Ion NMC, if it's 20KG then it'll be LiFePO4. They will however still say Lithium Ion as it's technically correct.

[@onehalf_]

The naming is misleading: there are two models - the old version (EB70) with LiOn batteries and the new version (EB70s) with LiFePo4 batteries. The new version has the name "EB70S" on Bluetti US site and "EB70" on EU site.

[@sergserg7162]

​@@DavidMcLuckie you are wrong. LiFePo4 can have different weight/size ratios. However, heavier LiFePo4 batteries have a longer lifespan.

[@charlestait5303]

It’s the Euro design, the USA version will be ok

[@manuelreyes3941]

Usted sería tan amable y mandarme el PDF service manual de la estación Bluetti EB70S

[@johntate5284]

The US version is only rated at 800 watts, i wish the US version also had the 1000 watt inverter. I got one of these when they first came out and have been very happy with it. Great to see what's inside. Those temperatures may not be representative of actual operating conditions as with the case open, the forced cooling channel cannot operate effectively to remove the heat. Great review!!

[@andrewbox2691]

Guessing the higher wattage is due to the higher output voltage of UK version. At the same current it would do more watts. But then again it may be a totally different inverter.

[@missionshipixdos215]

The current 2023 models are 1000W. Just bought one 230V a.c version for our mission ship in Thailand. Great little unit with 1000W means we can cook our meals inside the large Instant Pot Duo V60 6 quarts electric pressure cooker.. Brilliant!

[@manuelreyes3941]

Hola tengo una estación Bluetti modelo EB70S carga bien su banco de batería pero me pone un error que cuando yeva varios minutos deja de funcionar por la cual me pone batería baja si alguien me pudiera ayudar

[@bluescreenmod]

Hello there, does anybody have the dimensions of the fans? What are they, 80mm*15mm or 92mm*15mm? Can't find the information but would like to mod my with a nice noctua just to put the sticker on that thing. ;)

[@twocvbloke]

Previous house I lived in, my bdroom had a nice decor, creams & reds and just nice warm colours in general, when it was recently up for sale, I looked at the pictures, and holy hell they used a load of this mint-green paint in there utterly ruining the lovely looks!!! Totally unrelated to this I know, but, the horror of that awful colour when it's not a mint choc-chip ice cream, it just makes me sad... :(

[@cubleycat]

Its early 1950s blue lol

[@doitalldavey8788]

I have this eb70 and it won't do nothing say short

[@user-yw6kd8mh5n]

I have the same issue(

[@doitalldavey8788]

@@user-yw6kd8mh5n turns out there supposed to send me another one email the company

[@PAXthe4Th]

So mutch space inside for the powerbrick bluetti 😑

[@jen5366]

The worst thing about the EB70 is the rather big, bulky and noisy AC charger. The cooling fan is really annoying.

[@DavidMcLuckie]

It wasn't until I was finished I plugged it in to charge. Why, why did they put a fan on the charger? It doesn't stop when charged either.

[@truesight91]

@@DavidMcLuckie I have a bluetti EB55 and I found its extremely annoying when solar charging during the day, even on cloudy and cool days the fan kicks on every 3 - 5 minutes and is very loud... Wish i could disable it. Eco-flow now has an option to set the fan to kick-in at the desired input wattage I believe. I wonder if i should disable the fan completely.

[@darkijah-andersjehovahsn7893]

Yup the coolings fans are so noisy, I am trying to think of a way to fix it. Anyone have any ideas? Oh yea the AC charger is noisy as well for sure and fan does not stop. But my biggest issue is the noise the EB70 are making itself. The charger can be fixed with some kind of other charger.

[@darkijah-andersjehovahsn7893]

@@truesight91 Jup, have the same with the EB70, trying to find a solution for it... but you would think they had fixed some capable fans for it...

[@truesight91]

@@darkijah-andersjehovahsn7893 Bluetti has terrible customer support. I was talking to ecoflow and they told me their fans only kick in when high-wattage input or over 50'C temperature which my bluetti kicks in on a cold/cloudy day and low wattage, they offered to replace it with a 9 year one when mine is 1 year old and need me to send it back for them to inspect it first before they decide to replace or full refund. They only refunded me $200/$800.

[@darkijah-andersjehovahsn7893]

Hey, HEYYY you forgot the fans... Just going trough the whole board without looking at the load fans!!! I am thinking of making some holes in the side as well, I was thinking that it should make more air able to move, just small line holes in the side. But overall those fans are noisy when turned on, although I only thought there was one fan in it.

[@thomas1112002]

£729.00 very pricey

[@user-fs4fd3gv3r]

It's £649 usually. Watch out for the £80 voucher to bring it down to under £600.

[@DavidMcLuckie]

All the manufactures are around the £1 per watt hour of capacity.

[@user-fs4fd3gv3r]

@@DavidMcLuckie Ctechi is currently on offer direct from their Ebay store. 240wh for about £155 and.320wh for about £180

[@MrTomato35]

😂😂😂😂😂

[@ai4313]

Gotta try to pronounce it in Chinese or Mandarin... :D

[@vanmasterflash7153]

Bluetti sucks. Lots of problems and non existent customer service.

[@assassinlexx1993]

That color is designed to stop people from stealing it. Because no guy would claim he owns a such a gay color power pack. Either you paint it or put it back in the cardboard box.

[@JimLahey21]

I love the colour! Reminds me of the ocean

[@assassinlexx1993]

@@JimLahey21 what pollution you have to turn the ocean bright phosphorescent green?