CapeTownMac

Hi all, I have a Sunsynk inverter with four Hubble AM5 batteries and everything appears to be set correctly and is working. I have set the minimum SOC at 40% so when the batteries get to that level the system tries to keep them from not going below 40% but the way it works in practice is that there is a small feed from the inverter when the battery is at 40% so the battery charge gradually increases and when it hits 41% or more it starts powering the load again until it runs down to 39% or so, this happens quite quickly because the discharge is taking over the load. This means there is a constant small cycling of the battery between roughly 41% and 39% - the cycle switches from slow charging to full discharging approximately every 45 mins to 60mins. I can understand why this might be happening but it seems inefficient, especially if it's using grid power to charge the battery at night. Can any of the more experienced heads tell me if this is normal behaviour or if there is a way to allow the battery to sit at a stable 40%. TIA

I have an 8kw Sunsynk inverter with the wifi dongle and app plus 4 Hubble AM5 batteries. There is an issue with the SOC reflected by the batteries. The first step I took was to upgrade the inverter firmware which made no difference. The next step is to update the firmware on the batteries which I can do manually with the usb to RS232 cable and the firmware update files but I was considering if it would be easier to install a Hubble Cloudlink so that future updates and diagnostics on the batteries would be easier. Has anyone installed both the Hubble Cloudlink and the Sunsynk Wifi Dongle? Some of the features overlap but the Sunsynk can't do the battery diagnostics or firmware upgrades. I did call Hubble support and I got two different answers on two different occasions. One said I can have both and the other said I have to choose one or the other so I don't know which is correct. Thanks AJ

Thanks for your response, I did indeed see 300A for 3 batteries but the one battery was still discharging at a different rate. I've done some troubleshooting with Hubble support who were very helpful and have finally sent the battery in for assessment. I suspect the battery is faulty.

The master battery is connected to the inverter with the Comms cable that came with the Hubble battery and the other two are daisy chained in parallel. I have set the dip switches per the AM5 manual. The inverter seems to recognize that 3 batteries are connected but it sometimes gets confused because the master battery is discharging at a very fast rate.

I have a Sunsynk 8kva hybrid inverter with 3 Hubble AM5 batteries connected in parallel with the correct comms cables and dip switch settings. The system worked as expected for a couple of weeks but I am now experiencing the following issue: The battery which is set as the "master" is not discharging in sync with the other two batteries as it used to do. During a single bout of loadshedding it will discharge completely even though the other two batteries are almost full charged. The Sunsynk software shows that the batteries are discharging slowly down to say, 75% but in fact only the two slave batteries are at 75% and the master battery is discharging completely within a two hour load shedding period at a low load. It discharges so much that the alarm sounds and at times it discharges to the point when it has zero charge and has to be reset a few times in order to get it started again. Has anyone experienced a similar issue and are there any suggestions for a solution? Hubble support appears to be offline this week. I have tried resetting all 3 batteries in sequence but that didn't make any difference. Thanks. AJ