I have never said that the issue does not exist. I only want to emphasize that both power measurements are correct, but we need to be realistic and honest: they are two different measurements. One measures the DC current internally via the BMS, while the other measures the current externally using a cheap meter that does not account for all factors.
Moreover, the sensors both on the BMS board and in an AC wattmeter are not extremely accurate. There has been a lot of fuss about this, judging by the length of this forum post, even though the deviations are technically within normal tolerances. If Bluetti were to equip the Elite 30 V2 with the very best sensors, it would increase the cost by approximately $40–60, making the product less competitive in the market.
If having the most accurate power station is really important to you, you would probably have to build one yourself. I haven’t seen one available on the market for $200 or less.
Another issue is that custom firmware is continuously being developed for anyone who requests it. This does not really help the situation. People who truly have a problem with their BMS board should return the product via RMA so Bluetti can investigate the issue. Additionally, whether the station is a 110V or a 230/240V model also matters, as there can be significant performance differences.
I completely understand you, but the larger the inverter, the less accurate the value shown by the power station becomes under low loads. In your case, it might have been better to build your own power station or home battery. Than, you could have chosen the inverter that perfectly fits your needs and avoided this problem. I also fell into the same trap myself with a small load on a 600-watt inverter (Elite 30 V2).
A power station a niche? If even Lidl is entering the market (The Netherlands) with its own power station, I would say it’s no longer really a niche.
I don’t entirely agree. As long as the load is between 0–20 W or above 35 W (on my Elite 30 V2), the value is displayed reasonably accurately. Of course, there will always be circumstances where it deviates slightly, but we have to remember that this is a power station. We shouldn’t go overboard in the pursuit of perfection.
I’m talking about constant loads from 100 to 350W, with short-term heavy loads over 1kW (microwave, espresso machine, kettle). I’m pretty glad with the readings from my other 2 bluettis in the ranges I mentioned above. Except for the third one (Premium 100).
Yeah, I’m not doing that, and I don’t need it because that’s not my case. See above.
Ok. INDUSTRY. Are you happy now?
I don’t demand perfection. I need a basic functionality, which all of the existing power stations DO have in this INDUSTRY, instead of the useless one.
What point are you even trying to make here? You’re just wasting my time arguing over nothing.
Hi everyone!
It’s much simpler. Bluetti and other station manufacturers display a unit called WATTS on the screen. WATTS measure active power. This is clearly stated on the screen.
Best regards!
Our discussion ends here. I do not appreciate the way you speak to me.
You are indeed asking for perfection. You need to come to the conclusion that sensors in power stations typically have an accuracy of around 1–2%. What you are asking for is 0.1%, which is no longer basic functionality. In addition, you do not understand how the composition of the current values affects what is shown on the display; this is about the Power Factor. Furthermore, you keep referring exclusively to other brands; that is comparing apples to apples and, in my opinion, not particularly meaningful.
Put very simply: a cheap AC power meter does not show everything, such as:
Voltage
Current
Frequency
Power Factor
Active Power
Reactive Power
Apparent Power
Active Energy
Reactive Energy
It usually only shows:
Voltage
Current
Active Power
And some AC power meters also display frequency. The BMS uses all of these values, and that is what is shown on the power station’s screen. So my point is that both readings are correct: those from the BMS (measured internally and displayed) and those from the external AC power meter.
But this is where our conversation ends. I wish you happy holidays and a happy new year.
Yes, the device does show watts. However, some people have questions about how these values are derived, calculated, and displayed on the power station’s screen.
They measure externally using an AC power meter and rely on data from that device, while the BMS measures internally and displays those values on the screen. The issue is that, in some cases, the values do not match because the power factor is not perfect, which can cause the power station to display higher wattage values.
People performing these external measurements often use inexpensive AC power meters that do not account for the power factor or other factors in the final displayed values. They then compare their externally measured values with the internally measured BMS values, and these do not always match. That is what this entire thread is about.
Sorry, I think we’re not on the same page, and I don’t fully understand your issue. Do you happen to have your own thread about this problem on the forum?
If so, could you please send me the link to the forum thread, so I can read your posts and better understand your situation.
@BLUETTI_CARE and in current state it starting to charge even when it’s connected to grid and AC load connected to station, so again - no passthru mode even for AC load? For DC, as I understand, there is no passthru mode, ok, but for AC - it was there, but now - after some time station starting to charge from 99%
Please give me confirmation that this behaviour is expected
Thank you!
That’s normal. The station still uses some power for its own needs (~12 Watts for this model) even in passthrough mode, draining the battery, then recharges to 100%.
I have AC180P and AC200PL, and they do the same. I don’t think you can make it so that all internal electronics shift self-consumption from the battery directly to the grid (well, that’s my guess; I never owned an Ecoflow/Anker, etc.).
@BLUETTI_CARE received my elite100v2 5days ago. have been testing.
dc & ac idling loss is actually perfect. (wifi/bt/screen all off) DC losses 0.5% an hour, AC losses 1% an hour. very linear drop. In line with official words from bluetti, 5-6watt idling for DC 10-1 watts idling for AC.
display Active power is wayyy off. starting from 40w and on. Some examples
wattmeter - 41 watt → bluetti shows 75 watt
154 195
355 462
561. 776
795 953
897 1039
1741 1958
which module controls display wattage? ARM or DSP or BMS? need this updated
Но меня ещё интересует вопрос потребления энергии из сети,когда стоит режим ups custom и стоим по времени розряд АКБ,то станция из сети потребляет от 20 до 120Вт и при этом на дисплее 0
Нагрузка на станции около 100-200Вт
Что это за паразитные потери?зачем
Вот на фото пример,идёт розряд АКБ,но и из сети 44 Вт потребление
Почему так
Когда UPS standard,заряд 100% то потребление из сети 3Вт
Это в принципе допустимо
Hi @George2050, Your firmware has been upgraded successfully—please do not attempt to upgrade it again. Additionally, could you try re-calibrating the device and then test the effectiveness of the updated firmware?
Please follow the steps below to recalibrate it:
Please discharge all the power (charge AC & DC appliances with the power station) until the SOC is 0%, turn off the machine, and leave it for 3 hours till it cools down.
Please charge it again. Please do not load any device when charging it, and do not interrupt it while it is charging.
Hi @tempal, Regarding the first question you raised, we have applied to push a firmware update for you. This firmware will enable your Elite 100 V2 to display active power at all times.
As for your second question, we consider this a normal phenomenon. When the power station is connected to a power source, it will start charging automatically and stop only when fully charged. Once the battery level drops to 99% after being fully charged, it will resume charging again.
Hi @100v2, When the apparent power of your Elite 100 V2 under load exceeds 50W, the LCD screen will display the apparent power; when the apparent power is less than 50W, the LCD screen will display the active power.
We have currently developed a new BMS firmware that will enable the device to display active power at all times. Please provide the SN code and current BMS version of your Elite 100 V2, and we will apply to push the firmware update for you.
Thank you @BLUETTI_CARE , will update and check.
Another question: after some of the previous updates I lost the ability to switch station off completely (both via app and via harware buttons) when it’s connected to grid.
Earlier I was able to switch it off without unplug it from the grid, now I can switch it off only when power cable is unplugged or when there is no electricity in my grid. Is it OK now or it can be fixed?
Thank you!
