Found out something interesting today @BLUETTI_CARE. I have my AC200L in Customized UPS so it does not use any Gridpower to charge the AC200L until a specific time.
However, recently I decided to unplug the AC charging cable completely (through a smart plug) when not necessary and I found out the following: I have a box fan running… and when plugging in the Charging cable to the AC200L (without charging the AC200L) you can hear the Boxfan lower its speed (i.e. wattage drops), then I decided to also turn ON charging (Changed setting to Standard UPS) and the fan started blowing even slower.
For reference: Box fan High setting
Ac200L charging Cable disconnected from grid - 81.9 Watts
Ac200l Charging cable connected, NOT charging - 72.2Watts
Ac200l Charging cable connected AND charging - 61.7 Watts
This is a 20 watt drop! Which concerns me a little bit, since I also have a regular size fridge and a mini fridge continuously connected to the AC200L. (I have not put a watt meter on the fridges) however I have noticed the drop on other devices.
Is this normal? Should I be concerned? Or is this a software issues that can be resolved.
Update while writing this… : I have my AC180 connected with a smartplug so I can charge that one via the AC200L, every time I activate the AC200L charging plug (NOT charging the ac200L), it immediately stops the charging of the AC180 and start back up again.
Hi @ElDude, Regarding the first issue, it’s normal for the box fan to show different power consumption when powered directly by the AC200L versus when it’s being charged. In UPS mode, the fan’s power can be affected by the instability of the grid voltage due to bypass loading.
When the AC200L is not charging and directly powering the fan, the AC200L provides a stable output. The fundamental difference in power consumption arises from the difference between the grid voltage and the AC200L’s output voltage.
For the second issue, “every time I activate the AC200L charging plug (NOT charging the ac200L), it immediately stops the charging of the AC180 and start back up again.”
We need to know how you have connected the AC180 and how it start back up.
Can you take a video to show us this problem? Please upload it to a online cloud, and share us the link.
1: to clarify… when The AC200L is connected to the grid (not charging the ac200l) powering box fan, the box fan runs at 53w… when I disconnect the ac200L cable from the grid the box fan goes up to 57 or 58w… even though both are stable, I fail to understand why there is a difference in the power output (I am assuming this is affecting my Fridge in the same way)… and thus the fanspeed is lower. See (hopefully) images below… 53.08W image is when ac200L is connected to wall, but NOT charging. (images 1a and 2a) and vice versa 1b and 2b when not connected at all
We suggest using the AC200L to power the fan on its own, avoiding direct connection to the grid, or waiting until the grid voltage returns to normal before attempting again.
@BLUETTI_CARE so here is an update.
Current situation:
1.0: My AC200L is set to customized UPS where it does not charge of pass through from Grid.
1.1: I change the “working mode” to Standard UPS, ONLY if I need to add some extra SOC to the AC200L.
1.2: The AC plug is connected to a smart plug to the wall, this allows me to turn on/off the plug through an app
1.3: The Grid Icon on the app will show in Gray when the Smart plug is off and Green when smart plug is on… the working mode will be on “Customized UPS” with NO electricity going to the AC200L).
Here is what is happening, having tested a few things:
2.0 I turn on the smart plug -AC200l is un Customized UPS so NO energy going to AC200L
2.1 I still have the same issue with the wattage/amps/ dropping on for example BOX FAN… even though NO electricity is going to the AC200L . just smart plug is on (Grid Icon is green)
2.2: I change working mode to Standard UPS and now there is a charge from Grid to AC200L to charge the battery a bit more
2.2.1: Again this drops watts/amps on for example BOX FAN.
This is where we were, here is UPDATE on this
3.0 I change back from Standard UPS to Customized UPS (no energy flowing to AC200L, but icon still green)
4.0 I now turn off the Smart plug (as if pulling out the plug from wall… here is what happens
RESULT: Basically the system glitches… lights go off, modem goes off etc. etc.
Now I can imagine that this is caused by an additional delay from the smart plug. (i.e. messing the timing of UPS) HOWEVER…there is NO electricity going to the AC200L from the grid… ALL devices are ON the AC200L . So I can not understand WHY disconnecting from grid (turning off smart plug) when in Customized UPS and NO electricity coming from grid to anything would then cause the AC200L to do ANYTHING… should it not just continue… nothing has changed.
Note: I did try the boxfan changes WITHOUT the smart plug and it gave me the same result. So I am assuming it is the same for devices turning off. (I will try this).
QUESTION: is this normal? is this a software issue?
Hi @ElDude, We believe the main reason for the power inconsistency is unstable grid voltage.
The smart plug might be causing additional delays.
Additionally, if you have enabled the grid self adaption mode, it will widen the machine’s AC input voltage and frequency range. However, please note that this may affect the UPS switch-over time, which might not be maintained within 20ms.
