Hello, I bought a new AC180P, I use it as a UPS for my computer.
The load is 60-120 watts, but every about 2 hours the battery starts charging from 99% to 100% and the cooler starts making noise (on quiet mode).
I have a question, is there a workaround? Why would it drain the battery by 1% if there is no loss of power output?
Can you do the firmware for me, please, so that the battery doesn’t drain when there is power at the outlet? If not, at least make the battery c
The UPS deliever as much power as needed fot the device you want to power. So if you load is taking 120W, the AC180P delievers 120W. The battery drain from 100% to 99% happen because the powerstation itself also consume energy thats not beeing covered. Its also really unhealthy for the battery to stay at 100% all the time. Small cycles help the battery health.
Its a total normal behavior.
About loud fan, there are lot of articles about. Use the search
I don’t like this behavior, is it possible to make charging start from 90% for example?
Or that the cooler does not turn on for charging at 1%, or that the battery is not discharged in UPS mode
Very please help, it is not comfortable to sit in a quiet room with noise every 2 hours
You could set the SoC to 90% for example, but the behavior would be the same. The fan always starts when charging is started. Quiet mode could help in slower charge and less fan noice
Hi @James_UA, When the AC180P is fully charged, to avoid overcharging, the machine automatically stops charging and starts discharging. During this process, the battery level may drop to 99%, at which point it will begin charging again until it reaches 100%.
During both charging and discharging, the internal temperature of the battery cells increases, causing the fan to automatically turn on for cooling purposes. Unfortunately, the fan cannot be manually turned off, nor can this be achieved through a firmware upgrade, as it depends on not only the load power but also the internal cell temperature and environmental conditions. We recommend placing the AC180P in a well-ventilated, cool area or using an external fan to help with cooling.
We understand that you would like the AC180P to start charging from 90%, but currently, we cannot provide this feature. It might be something considered for future models, as it may involve hardware changes, which cannot be resolved through software alone.
Thank you, @Selfmadestrom, for the detailed and accurate explanation.
Can you consider adding a 50-100W “super quiet charging” feature to the phone app without turning on the fan for people with a problem like mine.
The 350W silent charging is very loud, the cooler picks up high rpm and gets quieter over time and that every 2 hours I really don’t like.
If developing an additional feature in the app is not feasible for most users, can you personally make just a firmware for me with a fix for the cooler noise during silent charging?
An alternative solution in your case is to use a smart plug (compatible with tuya or smartlife). You program the hours during which the plug is on, and therefore your ac180 can recharge and the hours when you work next to it and it does not only recharge the ac180. You will not have the ventilation linked to the charge. Of course this assumes that your battery lasts in the interval between 2 charges.
Hi @James_UA, Thank you for your feedback; I have passed it on to the engineers. However, we believe this might be quite difficult.
If we were to control the fan, it could affect the cooling efficiency, and inadequate cooling could lead to overheating of the battery, causing a range of issues. In terms of results, it could be counterproductive.
First of all, thank you very much, we are waiting for an answer from the engineers.
Secondly, my problem is not only me, I know my friends who have the same station, they also do not like this behavior of the station.
Therefore, if you do not solve this problem, I can not recommend to buy this station, I will write in the reviews that there are unpleasant nuances.
I purposely bought a more expensive station from a name brand in the hope that there will be no problems. Knowing in advance that it turns on the vetilators every 2 hours to replenish the battery by 1%, I would not have bought it.
Respectfully, I hope for your understanding.
All power stations used for pass through Aka (UPS / EMS) share this same behavior. If the noise of the fans disturbs you and your friends, put the power station in another room, out of earshot & connect an extension cord.
Bluetti can’t realistically do custom firmware updates for individual users.
Hi @James_UA, Thank you for sharing your feedback, we genuinely understand your perspective.
Our engineers believe that effective cooling is more important than the impact of fan noise, so they have decided not to create new firmware for this. Forcing the fan to turn off and compromising cooling performance would not be worthwhile.
Thanks to @Emax for their insights and suggestions. This has been very helpful.
