I’m new to the Bluetti family and would like to submit a feature request. Two weeks ago, I purchased a Bluetti Elite 30 V2, which I’ve been thoroughly testing. So far, I’m very satisfied, but I’ve noticed a few areas that could be improved.
My request: Please add an option similar to Working Mode: Charging ON/OFF, but specifically for the SoC settings for Solar.
For example:
When SoC Solar: ON is enabled, the system should follow the values set in SoC Settings — for instance, SoC Low 20% and SoC High 80%. This means the power station will not charge past SoC High (80%) when using solar input.
When SoC Solar: OFF is selected, the power station will charge up to the maximum SoC value of 100%.
Currently, the high and low SoC values only apply to grid charging. I would therefore appreciate an additional toggle that allows solar charging to follow these same SoC settings.
This would help extend the lifespan of the LiFePO₄ battery, especially for users who rely solely on solar charging.
I hope Bluetti will consider my request and include this feature in a future
I don’t understand the purpose of this feature. I had thought that one of the attractions of LFP over NMC was that, with the possible exception of long term storage, it is ok to charge LFP to 100%. It’s reasonable to not want to oscillate too much between 80% and 100% but that’s a differemt matter. For that, once SOC reaches 100%, just don’t accept further charge until SOC drops below 80%. So you don’t end up going 100%-99%-100%-99% etc.
The SoC setting (State of Charge) specifically SoC Low and SoC High only applies when the powerstation is connected to grid power. When it’s charged exclusively via solar panels, these settings are ignored, and the unit simply continues charging up to 100%.
In some situations, that’s not desirable for example: When you want to rely solely on solar energy to minimize grid electricity costs. That’s why this feature has been requested.
This feature would ensure that the power station operates within defined SoC limits for instance, between 30% and 70% during summer, when solar energy is abundant.
Staying within that range helps reduce heat stress, which in turn benefits the lifespan of the LiFePO₄ battery.
Regarding the micro-cycles (100% → 99% → 100%): I can only speak for the Bluetti Elite series, as that’s the model exhibiting this behavior. I’ve made a separate post about this issue.
Regardless of how SoC High is configured, once that threshold is reached, the power station enters a micro-cycle. That’s not a major problem for short periods a few hours won’t cause harm but over time, it can negatively affect the LiFePO₄ battery, especially in smaller models such as the Bluetti Elite series.
Finally, for long-term storage, avoid keeping the battery at 100% charge for extended periods. A few days is fine, but if you plan to store it longer, maintain the charge around 50–60%. Also, it’s a good idea to cycle the battery every three months: charge it from 10% to 100%, then discharge it down to about 60% before storing it again.
A few weeks ago I finally retrieved some of my Bluetti’s from my other house. They had been sitting there unused for at least two years. I brought them over to my other house to see about solar charging them and just checking SOC, etc., and much to my surprise, they were all between 80% and 100%. Two AC50S, two AC30, and an EB3A. Most of them at 100%. I also brought two big units, one a Zendure SuperBase Pro (NMC) and one BigBlue Cellpowa 2500 (LFP) and both were and still are dead as a doornail. Just as well because I hate both of those, lol.
The Bluetti’s all work fine. I am in a cool climate, and the house is well insulated, so they were neither too hot nor too cold that entire time. Room temp was never lower than about 50F nor higher than about 65F. I think that makes a difference.
Hi @mr.stone, Thank you for your attention to BLUETTI.
The Elite 30 V2 supports 4 UPS modes. We recommend using the Customized UPS mode, where you can set the SOC value and choose whether to charge from the grid based on your needs.
I’m not sure if you understood my post correctly. It’s about a feature to adjust the SoC behavior for the solar input, not about the SoC setting for Grid power.
In addition, I’m using the customized UPS mode with the settings shown below:
Settings
Charging Mode: Standard
Power Lifting: OFF
Screen Timeout: 30 s
Working Mode
Customized UPS
Charging: ON
State of Charge (SoC)
The current seasonal setting is Autumn.
Season
SoC Low
SoC High
SoC Solar
Reason
Winter
20%
85%
100%
Longer nights, cooler temps — allows higher top charge
Settings
