AC Output On/Off Scheduled Timer for AC300

So I have my 2 AC300 in split phase running my pool equipment off grid, just solar. My pool pump runs from 7am-3pm. By 5pm my battery is at 100% and the only thing being powered is the electrical equipment (No need to keep it powered on) and my 6am the next day my batteries are at or below 70%. Not counting the AC300 self consumption of 10%, the pool equipment drains about 20%. So I’m wondering is there a way I can schedule my AC output to turn off at 5pm and back on at 6am so I can save that 20% that is being waisted?

I’ve been manually turning off the AC output at 5pm and back on at 6am my batteries sit at around 90% by doing this but it’s annoying and would be nice if I can schedule it to turn AC output on and off.

Hi @BuzzSawB, Currently, the AC300 does not support scheduled AC output on/off operations and can only be controlled manually via the Bluetti app.

We recommend using a timer switch as an alternative, which is also a convenient solution.

That’s a great idea! It would definitely help to automate the AC output schedule to save on battery usage. Have you looked into using a smart plug or external timer for this? It could sync up with your existing setup. Otherwise, it would be awesome if Bluetti adds a built-in scheduling feature to make this more seamless for users like you.

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The problem with any switch/smart plug is that the AC output is still on inside the station, consuming power unnecessary. I will very much like to see more advanced programmability inside the station itself. Wonder if any of these stations, in the future, will also have some form of Home Assistance integration.

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Does Bluetti literature tell customers that they are going to lose 1500Wh in a 12 hour period? The question is rhetorical so I think Bluetti should take very seriously this suggestion as there are a lot of AC300 owners who see the massive loss of power (when not running anything except having the AC on) as a real problem! Is it the AC300 or the B300 batteries that account for the majority of this problem?

Hi @bluetti_jebrroprotonmailcom, When the device is turned on, even in standby mode, it will still consume a certain amount of self-consumption power. Both the AC300 and B300 require power to stay operational.


When the AC output of the AC300 is turned on, the self-consumption is 43.5W per hour. If not in use, we recommend turning off the device. If it’s inconvenient to power it off, turning off the AC output is also a good option.


A loss of 1500Wh within 12 hours is unusual. Could you please provide the SN number and BMS version of your AC300? We want to confirm if you have upgraded to the latest firmware. How many B300 batteries are connected to your AC300, and does recalibration help resolve the issue?

I have attached two images that hopefully show the information you are requesting. There are two (2) B300 batteries connected to my AC300. I will also perform the recalibration very soon and let you know if the excessive amount of power being lost decreases.

Hi @bluetti_jebrroprotonmailcom, We found that there is a new BMS v1021.13 for your PACK 3.
I have now applied to upgrade your firmware.
Our IT department will push the new BMS to your unit in 1 workday.
Please upgrade the firmware tomorrow. Please do not load any device when upgrading it, meanwhile, please only connect PACK 3 with the AC300 when upgrading.
We suggest you recalibrate it after that.
Please let us know if it does help.

Pack2 shows a current version of v1014.16 and pack3 shows a current version of v1021.14. I upgraded this morning (8am EST).

Why do the batteries have different firmware versions?

Why can’t I upgrade pack2? It says “no new firmware version” when I check for update. It appears to be an older version and yet I can’t update??

I have not yet recalibrated but will do so later today or tomorrow.

Hi @bluetti_jebrroprotonmailcom, Yes, this new firmware is specifically designed for Pack3. The Pack2 version is different and cannot be upgraded with this firmware.


The BMS version start with 1014 and 1021 involve different hardware batches, so the latest firmware versions are also different, but there is no functional difference between them.


The same applies to ARM or other firmware. These are separate firmware versions renamed based on hardware and batch differences, but each version has the latest firmware.


Please test the new firmware’s performance after completing the calibration.

i have recalibrated however the B300 batteries both show 100% charge but the AC300 reports only 50%??

Is there a setting that is incorrect?