Sorry, but I have to say, for my use the B300K is a B I G drawback.
(Letting apart more live cycles etc.)
Not only that it has 10% less capacity confronted with the B300S but there is NO option for DC Input.
In my system AC500 + 6xB300S, there is added a PV modul to each battery
and thus, I have about 2x ca. 1500 W input to the AC500 and 6x ca. 500 W
input to each battery.
I NEED this “extra power” to charge the batteries because in summer
(air conditioner, fruit dreyer) my average consumption is over 20 kWh / day.
I urgently hope that in your future batteries there will be one with
I agree with you. However, I can understand Bluetti’s industrial choice to make a standard brick, without the features (MPPT, DC IN, DC out) and mass-produced, to reduce costs. But I understand you because I am also looking at a B300 rather than a B300K for one of my AC200MAX for the same reasons.
Hi @digait and @Snips1, we completely understand your perspective.
The B300K does have a smaller capacity, as it was designed as a compact battery to be lighter and save space.
At the same time, we enhanced its compatibility so it can be freely paired with more power stations.
We recognize that the reduced capacity and lack of DC output make the B300K less than perfect, and we are working on new accessories and new battery models to better meet customer needs.
The B300/B300s is a mutli-purpose unit with battery, charger DC out etc… It is bulkier and most expensive. I think Bluetti select the B300k as a “pure battery” allow it to be less expensive and smaller. Not everyone who has an AC300/500/Apex300 needs additional DC or solar charging so it is a product line decision. I think they have additional accessories that would allow increased solar input or DC output, which would be good to add to their line without having each battery module to add all those components and cost. The 2.8kWh vs 3kWh isn’t a bit deal, as long as it is less $ and size and weight per kWh.
Hi @digait, Thank you very much for your interest in our new product. Currently, we are indeed unable to provide more information about it, but we will release this surprise before Christmas. You can follow our social media accounts or subscribe us to get more new information in a timely manner.
The B300K itself does not support DC charging, but it can be charged via solar power using the SolarX 4K. We have attached a screenshot of the SolarX 4K instruction manual for your reference.
Wow digait, yes, as I’m working through multiple issues with my (very expensive) Apex300 x2 x 2-B300K x 4-B300 batteries I am embarassed to admit I too just discovered yesterday there is no direct DC input port! Man I can’t believe they did that!
@BLUETTI_CARE…well charging the Apex300 with the B300K’s using the SolarX 4K is all fine and dandy, IF it would work! Yes, right now I’m “blowing off steam” as I am incensed at all the troubles I’m having with my setup, I do have a great guy working on it, but of course the 10 hour time lag is really a problem, and he’s giving a much different “set of operating specs” that totally contradict what the book says! I wish I just kept my good old reliable AC300 x 4-B300’s going, but I was enthralled at the scalability and the potential for “easy” 240V and let it draw me in.
@BLUETTI_CARE
Hello,
can I effectively use the SolarX 4K with my AC500 + 4xB300, 1xB300S, and 1xB300K system to feed in additional solar power?
Does the SolarX 4K charge the batteries in addition to the power of the AC500’s two inverters?
Is the additional charge distributed evenly across all 6 batteries? Where do I need to connect the SolarX 4K for this? Simply to one of the 6 batteries?
Thank you!
Joachim
Hi @twrenn22, thank you for letting us know.
I’m sorry I couldn’t reply to you in time due to being on leave a few days ago.
We understand that you would like to replace this Apex 300. We will follow up on this matter via email, and we believe the new unit will perform well.
I agree with you, the AC300 is indeed a very classic model, and it also has strong expandability.
Hi Joachim, We believe connecting it to either the AC500 or a battery pack works, and there is no difference between the two options.
Since the AC500 requires connection to 6 battery packs, there will presumably be no extra ports available to connect the SolarX 4K. Therefore, we recommend connecting it to a battery pack instead.
Yes, the built-in BMS (Battery Management System) will balance the configured charging current to ensure each battery charges evenly.
Additionally, we advise users to make sure the charge level of each battery is consistent before paralleling them. This charge balance can be maintained manually.
Thanks,
I have more questions.
Is the SolarX controlled via the Bluetti app, or
does it only work with the App and the Apex300?
What is the SolarX’s power loss?
If, for example, I have 3000W of PV input power, what is the actual charging power?
Is the SolarX’s charging power shown on the AC500 display and in the app?
Is it better to connect the SolarX to the B300 or the B300K?
Thanks!
Joachim
