I have recently added a B230 and watched the video for connecting them using the P090D To MC4 from the B230 and the MC4 to Aviation into the EP500 PRO.
The issue is the MC4 to Aviation cable that I have appears to be mislabeled. In the video it wants the PV cables from the P090D into The DC1 + and -. However on the on the aviation cable they do not say which negative cable is DC1 and Which is DC2 and as there are 2 of each there is no way to know which is which. Additionally the Cables with the DC1 - have a connector that is marked with a +. Now I am not sure if that is indicating what it should be plugged into but it seems to me that they should match. This is the same for all 4 of the input lines. Both - have the positive connector and both + have the Neg connectors. I have tried every configuration of the cables but none will provide power back to the EP500 PRO
Any assistance would be appreciated. I have tried emailing and calling and am not getting a response.
Hi @shirschhorn , Open charging mode requires a long press on the B230 key until it flashes. As for the PV line without wire label, you can refer to the following diagram to wiring
Can I get some help to? I connected the b300 on the ep500pro but it does not charge. De light flash on the b300 and volt dc input start at about 50v but then dorp to 9v . But watt input is zero…0 …
I also cannot get the dc working on the b300 in stand alone with charge mode is off.
@bluetti_jimliendenicloudcom
Was it normal when using the B300 in charging mode before? Can your B300 currently charge and discharge normally when used alone?
Hi.
Please can I have some help on this aswell. Exactly the same issue as above.
Showing 9v onscreen when b230 connected tried everything.
My b230 isn’t now turning on DC output either.
Is fully charged but nothing else to test it on too.
Thanks.
Hi @bluetti_eca05rjcgmailcom, We’d like to gather more specific information. Is your power station also an EP500PRO? Does the EP500PRO’s screen display 9V?
It would be extremely helpful if you could shoot a video showcasing the issue, as this will enable us to conduct further troubleshooting. Please upload the video to the Google Drive, and share the link with us.
Additionally, could you provide the SN number of your power station and its current firmware version? This information is crucial for us to accurately identify the problem and provide targeted assistance. Please feel free to share any other details that might be relevant—we’re committed to resolving this for you!
the EP500Pro supports B230/B300 only in Powerbank mode. So just output from the Battery to Input EP500Pro.
Confirm that you set the DC Input (1 or 2) to “other”. Connect the PV Charging cable to the PV Input and the P090D to MC4 cable from the B230 to DC1 or DC2 of the EP500Pro PV Cable.
Long press the powerbutton of the B230 until it blinks. Should be fully operational now.
Hi.
Thanks. It magically decide to work perfect the next morning
including the DC outputs on the b230. No idea why it wasn’t working before…
Appreciated.
Hi @bluetti_eca05rjcgmailcom, Thank you for the update! We’re glad to hear everything is back to normal.
Our guess is that the device might have stopped working due to excessively high environmental or internal battery temperature. Fortunately, the issue was resolved once it cooled down.
We appreciate @Selfmadestrom’s kind advice!
