This is likely the same issue. DSP 2200.99 is the firmware that fixed it for me. It can be a test build that they pushed to a subset of units and they would likely push it to everyone soon if there are no reported issues. I would not run the fridge with the E100v2 until the update as that strange state might not be good for the fridge. This is a brand new unit so there might be some unexpected behavior with some devices, they have a firmware fix though and it would likely work for you too. Wait a week or so, and if you don’t get an update. Send them a email and ask for it, give them your serial number.
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I was told that my 2200.99 was a test build to test improvements for compressor like loads. It seems that it was successful. They would likely roll whatever changes to the next official firmware version. It is good news that it can be fixed in software.
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Thanks for the update. I will keep my eyes open for when the update rolls out. Good to hear it seems like the fix is software 
I started looking at reviews on the new elite 30 v2 and there has been at least one mention of a similar problem on that unit too…
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The E30v2 is only a 600w max unit, which would generally be insufficient to handle startup surge for most compressor based unit, so I am not surprised. But the E100v2 at 1800w should be able to, hopefully they would widely deploy it soon.
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I’m really glad this can be fixed via software.
I have a small ice making machine that I run on hot sunny days while camping. My old custom built setup used a victron 12v 500w inverter which ran this with no problem.
I was shocked when I plugged the ice machine into my 100 V2 and it was running but shacking itself off the table 
. The compressor was running but in a very “lumpy manor”.
Very surprising behaviour form a inverter 3-4 times an powerful!
Hopefully the update gets pushed out soon 
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From my understanding, standard compressor fridges which utilize a “hard start” will often have a brief high inrush current around (typically) 3-7X the running current. So if your device uses 150W while running it can be as high as 1050W. So you say to yourself, 1050W that’s fine. My Elite 100 V2 can do 1800W surge without power lifting. The issue is the software logic may treat this sudden surge as a fault, and in order to protect itself, it turns itself off to prevent a potential problem. So it’s not about the upper limitation of the hardware (i.e. let’s say your max surge is 1050W but your inverter can handle 1800W) it’s about “how” long should I let this surge happen but I take action. The software detects the rate of change of current/voltage and treats it as a fault. Likely the firmware update modified this behavior slightly (i.e. the surge timeout). This is just my theory keep in mind.
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If you have 
low voltage but high current 
, the AC motor won’t have enough torque to spin and will stall.
If you have high voltage or a distorted waveform, the AC motor generally will make a “buzzing” sound.
If the voltage fluctuates which throws off the magnetic rotation of the AC motor, it will jerk/shake/rattle.
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The e100v2 out of the box definitely has a problem with surging compressor loads. Even though it should be able to handle it, my 100w freezer should not require more than say 1000w to start, and the E100v2 is rated to 1800w, something messes up to cause it to not start properly and get stuck in a bad state. I went back and forward with BLUETTI on firmware and they gave me a test build that fixes the issue. But they said it was only a test build and may not have rolled it to their mainline yet to everyone. Probably need some more regression testing.
I noticed that on my test build, the time of use UPS mode and custom charging current limit doesn’t work. But it does start my freezer.
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How did you get that FW level? I have the same issue with my new 100V2 running mini fridge. Just updated a few minutes ago:
ARM v2186.12
DSP v2200.10
BMS v1083.7
Interesting it will start and run my old school small LG window AC just fine. Its th 60Watt mini-fridge that makes weird tones and has a pulsing interior light.
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Here is some interesting new info on this issue.
If I add a load such as a 800watt heat gun, my minifridge runs normally.
My little test:
Plug E100V2 into grid then power up fridge and heat gun. combined less than 1000 watts.
Now unplug E100V2 from grid and BOTH continue normally. Fridge is happy pulling 58watts according the killawatt.
Switch off the heat gun and fridge makes awful noises and interior light pulses.
killawatt shows close to 100watts fluctuating.
Here are my current FW levels again:
ARM v2186.12
DSP v2200.10
BMS v1083.7
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I got a test build from them labeled DSP V2200.99 that fixed the problem for my freezer, but it was just a test build. You may want to contact customer service with your problem and SN and they may be able to push that to you too. Keep in mind that I found other issues with it such as the time of use USP mode and the custom charging current limit doesn’t seem to be fully working. If you can wait, it may be best to wait for them to validate and merge the changes back into the main firmware. However, if running that fridge is the most important thing, then by all means ask them to take a chance.
@seven30 you test with the 800w heat gun is interesting. It strongly suggest that there is an issue handling inductive startup surge load such as a motor or compressor due to the lagging power factor, where the current flow lags the increase in voltage. This seems to put the machine into a bad state. When you add the 800w pure resistive load, the average power factor is no longer as laggy and it doesn’t trigger the issue. I tried to do that with my hair dryer which is either 300w or 1500w, I can’t run 1500w as it is too much with my freezer, but the 300w isn’t large enough to adjust the power factor. Give this clue to Bluetti and it may help them.
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Thanks for info @snowstorm. What I found particularly interesting is there was no startup load. Both fridge and heatgun were running then I just unplugged the E100V2 from wall outlet and both continued as if nothing occurred. However, just turning off the heatgun affected the running fridge compressor and the fridge interior light started its disco dance.
EDIT: Looking at the fridge diagram I see it has a PTC starting device as opposed to the old school relay. I would not be surprised to find that PTC temp is borderline and partially running the start coils and inverter is responding to the load at just the right delay to cause this slow oscillation between the two.
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Just a quick update. Happy to report DSP v2200.11 seems to have completely fixed the problem. Tried it on a full size fridge, gas furnace (bonding plug needed), bar fridge, microwave. Everything runs normal as far as I can tell
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Excellent. Thanks to Bluetti tackling this little issue. Getting an inverter to cover a wide range of loads while minimizing losses cant be a trivial exercise.
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Just a followup. After FW update to latest my el-cheapo mini fridge cannot tell the difference between line and inverter.
I hope the Big Cheese at Bluetti recognizes their support teams responsiveness.
Thank you Bluetti.
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