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I am charging the battery with a laboratory power supply. The charging current is stable on the 10.12 A DC power supply. At the same time I control with a stable 10.42 A current clamp. But the charging current feedback given by esphome/HA is not stable. from 6A to 16A) Here is a video: Do you also have this problem? Is it a bms sampling problem?

there is also 300 ohms resistor behind the balance leads 199 entitys in the CAN bus (under esphome) about balance curent, is it 115mA per cell or 115mA for 4 cells ?

Hello, I just received from DEYE two SE-G5.1 PRO B batteries. These are new models with quick connectors like the Pylontech batteries. For testing, I use the YAML code with a MCP2515 and I receive the PCS information on Home Asistant. For now I can't receive the information on the RJ45 IN and OUT ports. For these ports I use a CAN SN65HVD230 adapter. I am working on the problem with European friends who know HA, ESPHOME, ESP32 / S3 etc. Concerning these batteries which seem different inside to those in the photos of this post there is a large resistance of 12 ohms / 100W. which is connected to the BMS at the level, it seems, of the "balancing" part. Is it a single resistance for balancing, or a resistance which serves as a heating element?

hello, thanks for your reply, I am also in contact with Jerome in France, about it. His inverter has burned (dc to dc board). regards.

hello, there is no one available to help me find the answer ? Many thanks.

Hello, I have a infinisolar 5,5kw since end of 2017, with a lot of bugs. the main cpu version U1 = 26 second CPU U2 = 30 one of my friend have the same model but from end of 2018, original main cpu and secondary cpu version was 30 and 33 He just update it with 34 and 38 cpu version. I wonder if i can update my inverter (cpu 26 and 30) with 34 and 38 version. Does the 2017 hardware model will accept it ? sory for my bad english. Many thanks.

Hi Coulomb, Here is the first mesage I sent to MPP SOLAR : ""

Hi Coulomb, in recent days, information is spreading in some french photovoltaic forum. we are now realizing that many people bought this inverter model without previous experience with solar systems. Many of these people thought that this was a normal operation. Following a few videos on youtube, a lot of comments from people who are surprised to see these bad results. I do not have any contacts at Voltronic Power, but I have contact with Peggy from Mpp Solar, I sent her a message, she transferred my request to the technical department. I hope to have an answer, or an explanation quickly.

Hi Coulomb, the european seller From "WKS" has send a new inverter (same), and it's still the same. It seems that many peoples in France with this inverter model (Axpert VM III or equal ) have the same problemes. Zero Watts production with light grey sky. The seller is sending is low voltage mppt input (60-115v), we will change the panels wirering to (3 x 3) and will test: https://www.wattuneed.com/fr/onduleurs-et-convertisseurs/9548-onduleur-hybride-wks-evo-5kva-48v-0712971139138.html for sure all the pannel are good. again, thanks for your help, I willgive you news asap

Hello Coulomb, and many thanks for your reply, Sory, but English is not my main language. the inverter come from an european brand, but from voltronic factory. The Brand name is " WKS " https://www.wattuneed.com/fr/onduleurs-et-convertisseurs/12472-onduleur-hybride-wks-evo-ii-5kva-48v-0712971139985.html I think it's a AXPER VM III 5KVA; (similar MPP SOLAR PIP GK series ? ) Hight Voltage MPPT There is 9 PV pannels: one string of 9 for 306V DC Vmpp When the inverter is started, the mppt input on display show 306V for 10 seconds, and drop to 120V (when sky is light grey) : 0 W production. a test has been done with 2 string in parallèle (2 x 4 Pannels), input DC on display about 140V DC, (when sky is light grey) : about 400W production. All PV pannels has been tested , they are all good. In fact, with the same weather, a PIP 5048 with 2 string (2 x 4 "300W"), at the same time was producing more (0w for WKS inverter (drop to 120V), and 650W for PIP 5048). Could you tell me how to find firmware version ? best regards

Hello from France, I allow myself to post this message because many users of hybrid inverters here in France have a problem with their inverter. it's inverters are from the PIP-GE series from mpp solar, but I think they are voltronic power they are hight voltage mppt input all the settings are done correctly, but the mppt algorithm does not seem to work properly. As soon as the panels are no longer in bright sunshine, as soon as the weather is slightly gray, the mppt input drops to 120V DC, and there is no more production. the power sent to the battery or charge is 0 watts. At the same time, with the same configuration of solar panels, an old model PIP5048, at the same place produces it without any problems. yesterday, with a gray sky, the PIP5048 produced more than 850W, while the PIP GE produced absolutely nothing. we currently have 3 inverters of this type that seem defective, they are not of the same brand, but all of the same model as: (2 ar WKS brand, one is Mpp solar). They are all similar as voltronic AXPERT http://voltronicpower.com/en-US/Product/Detail/Axpert-VM-III-1.5KVA-3KVA-5KVA https://www.mppsolar.com/v3/pip-gk-series/ Does anybody could help us. Best regards