The EB70 Has Been Unleashed


After owning several Sogens the past few year and patiently waiting to get my hands on the new Bluetti EB 70, I have spent the last two days putting it though its paces. For those of you that don’t like long reads, I will cut to the chase . It is a “right sized ” mid range capacity sogen that will work well for the average user. It is a basic unit with enough capacity to power most items in most circumstances with a larger than average battery life all with a low cost per watt hour. This one is just right for a variety of users.

Now for the rest that want details, details, details .

The Bluetti EB70 arrived in perfect condition and was double packaged inside a thick outer carton that contained the actual product box. The inner box was well padded, contained an accessory box with paperwork and the unit arrived approx. 60% charged.

I own several Ecoflow R600 series units and they are an obvious competitor to the EB700. Included are side by side pics of the two units and I used the R600 to perform car charging and AC power for AC charging. Overall the EB70 is about an inch wider and deeper but the same overall height when including the R600’s handle.


• 716Wh Ah - 716Wh

• Battery Cell Type: LiFePO4

• Display than automatically shuts off even when not desired

• Dimensions: in.

• Weight: 21.4lbs

• Operating Temperature: -4°F-104°F


• 4*AC (Pure Sine Wave): 100-120V, 700W (1400W Surge) , 50Hz / 60Hz

• 1*Car Port: DC Regulated 12V,10A

• 2*DC Outputs: Regulated 13.4V, 10A, 5.5mm x 2.1mm

• 2*USB Type-C: 5V,3A / 9V,3A /12V,3A / 15V,3A / 20V,3A / 20V,5A (100W Max)

• 2*USB-A: 5V,3A

• 1*Wireless Charging Pad: 5W / 7.5W / 10W / 15W


• DC Input: 12V~28V, 8A (200W Max), 7.9mm x 0.9mm female socket


• 1*BLUETTI Portable Power Station EB70 (716Wh/700W)

• 1*AC Adapter & Cable with built in constantly running fan

• 1*Car Charging Cable

• 1*Solar Charging Cable (DC7909 Male to MC4)

• 1*User Manual and warranty card


Battery Capacity

I received 648 watt hours out of an available 716 watt hours for a 90% efficiency rate while powering a 415 watt AC load. I ran a second test with a 156 watt AC load and received 668 watt hours for an 93% efficiency.


Car charging worked flawlessly at 103 watt charging rate . 24 volt 190 watt car charging is also available for 24 volt systems.

12 volts=38 watts

13 volts=100 watts

14 volts=109 watts

AC Charging measured 197 incoming watts . The supplied charger is rated for 200 watts, includes a built in fan which works well to keep the charging brick cool during charging. The fan runs anytime the charging brick is plugged into AC power regardless of the temperature of the brick or whether it is connected and charging or not. The noise is noticeable and annoying but I cannot argue that the fan is effective at keeping the temperature of the brick low. The fan runs on the EB70 itself when charging above 95 watts and the fan is very quiet. There is a red light that appears while charging and the light turns green at the completion of the charge.

Solar Charging is a mixed bag. While the rated input is 200 incoming watts, the 8 amp current limit makes this very difficult to achieve. The EB70 accepts incoming voltage from 12 to 28 volts (29.75 upper limit real world cut off) and to get close to the 200 watt potential you will need a panel in the upper voltage range. Below are some charging voltages with wattages I achieved: (I know these do not calculate at exactly 8 amps but they were what I observed.

15 Volts = 121 watts

18 Volts = 142 watts

20 Volts = 158 watts

22 Volts = 172 watts

25 Volts = 193 watts

25 to 29.75 Volts all = 193 watts.

The sweet spot for solar charging would be to find a panel that outputs from 25 to 29 volts under load . If you connect a pair of panels in parallel, the combined output cannot exceed 8 amps which makes solar panel selection challenging to get close to the 200 watt potential. I used an Aiper 160 watt folding panel that I was able to get 118 watts in single configuration and a max of 174 watts when using two connected in parallel. These panels run a little higher voltage than others I have and even then, I was up against the 8 amp limit. Bottom line on solar charging is that even though you have a 200 watt potential for solar charging, you will be challenged to get close to that and be better off with the real world expectation of using a single 120 watt panel. The EB 70 would be much more solar usable with a 12 amp limit so that two panels can be connected in parallel without exceeding the incoming amperage limit.


This is strength for the EB70 . The inverter is load rated output from 700 to 839 watts for two minutes and from 840 watts to 1050 watts for 2 seconds. There are four AC sockets located on the front of the units, two of which have recessed holes to accept three prong cords. I personally observed that I could run a 750 watt load for over five minutes and an 833 watt load shut down at exactly two minutes as stated it would. I measured a surge of 999 watts max during a vacuum cleaner start up and the unit will go into overload consistently at 850 watts. Bottom line, the inverter will power 700 watt loads as advertised and still have enough reserve capacity to bump above somewhat for short durations. This is a good inverter for this size of unit.


12 volt DC outputs. There is one Car Plug Socket and two 5521 sockets rated at 10 amps. The 12 VDC outputs operate at 13.4 volts and are fully regulated meaning the voltage out of them remain the same when the battery is full all the way until it is almost empty. This is important when running portable refrigerators. I wondered if that was a combined 10 amps output or could each of the three output sources handle a 10 amp load. The output is a COMBINED 10 amp output. Each of the three outputs was capable of 10 amps separately but the 10 amps are shared by all three.

USB Outputs. The two USB ports worked as advertised at 3 amps each and had not problems.

Power delivery ports. The EB70 is class leading with the inclusion of two 100 watt power delivery ports. I charged two laptops and each port is capable of outputting a 100 wattage power delivery from each port for a total of 200 watts. Great job Bluetti.

Wireless charging. This old man ain’t got me none of them fancy doo dads that can charge wirelessly so I will have to take the word of others that the wireless 15 watt charging pad works as intended.


The EB70 has a very basic display screen . Shown on left side of the screen is the battery level (state of charge) bar in 20% increments. This bar will cycle up and down during charging and turn non moving when fully charged. I personally prefer to see an exact % state of charge as I find it much more useful and accurate. The right side of the screen displays the incoming (charging) and outgoing watts. These are large numerals and easy to see indoors. There are various indicators that pop up for overload and other warning indicators. I did notice that the wattage output numbers differed by approx. 24 watts lower than my Killawatt meter was reading.

Overall if you are a basic, just use the thing type of person you will like the display. If you are like me and want to see all the details including time remaining for both charging and discharging you will come away wanting more. The one single thing that I disliked about the screen is that it times out after approx. 20 seconds and you have to press one of the three operation buttons to turn the view the display again. This single feature bugged me throughout the entire test and it would be an advantage to toggle this feature on and off. I for one would gladly give up a watt or two just to keep the display on if I wanted to. It works and functions but not much more.


There are only three buttons to push on the entire unit. AC inverter button when pushed turns the unit on and enables AC power to be outputted. The DC output button when pushed enables power to the DC output sockets, the USB ports, the Power Delivery ports and the wireless charging. The light button turns on the front facing light with three modes. High, Low and Cool SOS flashing.

All three of the switches are identical and poorly lit which makes it hard to determine if they are off or on when outdoors. There is no main ON / OFF button to operate the EB70. Pressing the AC or DC button turns the unit on and turning both of these buttons to the off position turns the machine off. I would prefer a separate “ON” switch that was well lit and clearly identifiable as to whether the unit is on or off.


Arguably the best and most crucial feature of any Sogen is the built in light. The light on the front face of the EB70 is a standard 3 watt LED light with High / Med and SOS functions. I had high hopes when the flood light came out on the AC50S which was usable in a power outage and for camping. Sadly this light was not included (or an even larger higher power version) on the rear side of the EB70. This would have been a big plus to include for use in camping, power outage and simple van dweller uses. The entire rear section of the EB70 is a blank slate and could easily have accommodated a large functional area flood light. Maybe next time………


The cooling fan on the EB70 is powerful and very quietly moves a large amount of air . The fan will not come on until the AC inverter output exceeds 300 watts or reaches a high temp threshold. Th e fan on this unit is one of the best I have seen with keeping the unit cool and remaining quiet and unobtrusive.

The fan runtime parameters are: The internal fan of EB70 will turn on in one of the following 3 situations: (1) AC Output>300W, (2) DC Output>95W, (3) Input Power>90W

My TV used 156 watts and I like to use it for capacity tests. It is very noticeable when the fans turn on while watching TV and the EB70 does not come on or need to come on in this situation. Big advantage here for Bluetti.


Battery cycle capacity of 2,500 cycles before losing 20% of the capacity

Battery capacity . 717 watt hours is great in this size of machine

Inverter Strength . Very capable inverter capacity in a smaller size unit

Fan noise . Very quiet during operation capered to some competitors

(2) Power delivery ports . Class leading 100 watts each

Size. Good compact unit with good construction and appearance.


No on board charger or fast AC charging. The days of the power brick are rapidly numbered and need to go away. An on board charger that utilizes industry standard

power cords are the most convenient method of charging. The included AC brick does the job but at 200 watts charging rate and the loud fan are not competitive with another manufacturers offering that includes both on board and fast charging.

Solar charging input limitations. The 8 amp limitation on solar input makes it almost impossible to achieve the 200 watt available charge rate incorporated in the machine. If you connect panels in parallel the 8 amp limit will not allow 200 watts incoming. You cannot connect multiple panels in series because of the 29 volt incoming limit. The solution to this would be to simply raise the input voltage limit to 65 volts which would allow the 200 watt charge rate to be achieved. (400 watts incoming would be even better)

Needs option for display to remain on without going blank every 20 seconds. This was very annoying for me during testing.

App control would be nice to keep competitive. This is a disappointment to not have this feature on a newly introduced product. App control would enable user to be able to have access to many additional settings which would satisfy a wider customer base. Those that did not value or have use for app control could simply not use it. Also would allow for firmware upgrades which are almost a must have on these devices in today’s market.

No On / Off button . Would like a main power on, power off button to know easily if the EB70 was truly off. The small AC and DC buttons have poor outdoor visibility which allows for the unit to be left on by mistake.


At the price point vs capability, the EB70 is a very desirable unit. If your needs are a basic high quality unit with excellent inverter and battery capacity to use in wide variety of situations, you won’t go wrong with the EB70. The battery cycle life is outstanding and you won’t find a lower cost long life unit on the market today with the capacity and features of the EB70. The construction is first rate and for most users, it has everything one needs. It is just like Goldilocks and the three bears…… This one is just right.


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This is a very good rundown. You hit exactly every point that I was concerned with. Give me the AC50S buttons and LEDs with a dedicated power button so I don’t have to accidentally turn on the light and faster solar charging and I think the product would be about perfect. I could take or leave an app, in my experience those things really don’t work that well and add a lot of complexity to a device I’m looking to be rock solid. I get the complaint about the fans on the AC charger and think it would be nice to integrate that device but it really doesn’t impact me because I never use it.


I received the EB70 back in June and did some home testing on it and took it on a camping trip. Overall, I’m pretty happy with the unit for my uses. I’m composing this reply as I’m reading your review.

Regarding the accuracy of the power draw indicator, I’m seeing about a 10% lower reading on the EB70 display than in my REED power meter (I would have expected the EB70 to be higher due to inverter overhead).

The display auto shutoff is quite annoying. To just check the power level, it barely stays on long enough to read it (if it is coming out of a shutoff state, it doesn’t actually stay on long enough for the “5 segment” indicator to finish). It does stay on longer if you have the AC or DC side enabled.

The rules for determining when pressing the button next to the light will turn on the light are so opaque that I don’t even use that button.

Having App control has many advantages and one that you didn’t mention was that if the screen is damaged or unreadable due to ambient light or location, your mobile app would act as a remote replacement screen.

1 Like

Good thoughts and ideas. Thanks Erik

The thing that worries me most about the power brick fan is what happens if it fails. Fan are mechanical devices and eventually fails, would the power brick become useless or worse overheats? I am considering purchasing this to replace some old lead acid goal zero units I had backing up my home networking stuff and am wondering if I can leave these plugged in if there is a constant on fan in the power brick.

Would it be practical to buy a fanless 110V AC to 24V 8A DC power supply and use that to charge this unit? That would eliminate one of the negatives of this for maybe $30? Anyone has concern about this? I am planning to use this as an always on standby for my communication devices, kind of like a UPS but more capable. AC → EB70 → Load, so if AC cuts out, the EB70 would keep things uninterrupted. The only disadvantage compared to a normal UPS is that the average load must be <180W or so or the input charging won’t keep up.

Any issue with keeping this at 100% state of charge?

You can charge the EB70 with the 24volt 8 amp power supply mentioned assuming you connect it to the solar charging input port. The AC power brick input port is very picky regarding chargers that will work.

Thanks for the information!
I wish I had seen your information before… Well… I guess it is as it is.

  • Darkijah

On my 2 Sun Power Panels of 110 watts, in Parallel, 18.8 Voltage in usage I have seen today and for the first time on the bluetti EB70 display, European version, 157, 158, 159 ,160 watts numbers :)

And calculating 18.8 Volts times 8 should only give me 150,4 watts - in any case, it still seems to be crawling slightly upward so we will see how it goes as the Sommer comes closer.

At least it seems to still have Room for pushing more into the system and haven’t reached its maximum, I though 156 Watts was high and only saw it for a short while. But today we have apparently gone beyond that with the peak number now being 160 watts on the Bluetti display.

If I am correct the Voltage is exceed if I do more then 2 Sunpower panels, correct? But can I put 3 in Parallel? I was thinking about the Amps, but then I thought, wait a minute the Amps are not going into the other panels so it should not exceed these numbers… Or maybe put a diode thing on them so the power can’t backtrack maybe. Although not sure that is necessary at all. Although they stop producing those kind of panels which is odd as it was a rather new product those 110 watts as far as I recall.

You can connect as many panels in parallel as you wish, as it adds the max current, and not voltage. The EB70 will only pull 8 amps, so any extra will be wasted.

The EB70 has an MPPT solar controller, so it seeks the max power voltage and current. If a panel produces 18.8V normally at 8A for max power, if you connect 2 in parallel, it can do 18.8V at 16A for max power, but since there is a curve to the voltage/current relationship, it might be able to do say 19.5V if you only pull 8A. So the EB70 MPPT will attempt to increase the voltage while still pulling 8A. There is only a little bit more you can do here though and the extra will be wasted.

To get max power into the EB70, you would want a panel that produces around 24-26V, that way at 8A max current you max out the 200W power limit. Do not exceed 28V or it would damange the EB70, note that panel voltages increase when cold, so that’s why I say 26Voc is what to aim for.