Search found 9 matches

by andrewmoore
Tue Nov 26, 2024 8:26 pm
Forum: Customer/End User Help
Topic: Added 2 additional HV2600 batteries - BMS now all over the place
Replies: 5
Views: 1509

Re: Added 2 additional HV2600 batteries - BMS now all over the place

I'll report back in another week, fingers crossed!
by andrewmoore
Tue Nov 26, 2024 8:22 pm
Forum: Customer/End User Help
Topic: Added 2 additional HV2600 batteries - BMS now all over the place
Replies: 5
Views: 1509

Re: Added 2 additional HV2600 batteries - BMS now all over the place


With the temps being lower this time of year it can take 10-20 cycles to balance everything.
Reading what you did everything is correct so just monitor it over the next week or two. I'm sure things will balance and improve.


Thanks Will, I appreciate the reassurance!

Current cell low is 14.6C ...
by andrewmoore
Tue Nov 26, 2024 8:12 pm
Forum: Customer/End User Help
Topic: Added 2 additional HV2600 batteries - BMS now all over the place
Replies: 5
Views: 1509

Added 2 additional HV2600 batteries - BMS now all over the place

Hi all,

On 22nd November, I added two additional HV2600 V2 batteries to my stack, taking the total to 7. With the H1-5.0E inverter. I followed the following process:

1. Powered everything off and turned AC and DC isolators to off.
2. Measured existing and new battery voltages. They were within 0 ...
by andrewmoore
Thu Nov 14, 2024 6:20 pm
Forum: Customer/End User Help
Topic: HV2600 BMS capacity gone haywire since firmware update
Replies: 7
Views: 3823

Re: HV2600 BMS capacity gone haywire since firmware update


I'm not sure thats correct any more. On newer firmware sensor.bmw_kwh_remaining shows the capacity and not the remaining.
See https://github.com/nathanmarlor/foxess_modbus/issues/651 for more info.

Oh, interesting! That's the issue with making such a big jump in firmware, easier to lose track of ...
by andrewmoore
Thu Nov 14, 2024 6:14 pm
Forum: Customer/End User Help
Topic: HV2600 BMS capacity gone haywire since firmware update
Replies: 7
Views: 3823

Re: HV2600 BMS capacity gone haywire since firmware update

Will wrote: Thu Nov 14, 2024 6:03 pm What integration are you using? the modbus addresses have completely changed in newer firmwares
I'm using the latest version of https://github.com/nathanmarlor/foxess_modbus.

To calculate max capacity I'm just doing:

Code: Select all

sensor.bms_kwh_remaining / sensor.battery_soc * 100
by andrewmoore
Thu Nov 14, 2024 6:12 pm
Forum: Customer/End User Help
Topic: HV2600 BMS capacity gone haywire since firmware update
Replies: 7
Views: 3823

Re: HV2600 BMS capacity gone haywire since firmware update


The update to Manager 1.74 and Master 1.65 caused all sorts of issues for me. Initially after the update, it said I generated 131kWh of solar that day and had a yield of 0.0kWh, the next two days it then did not count up at all from zero. Fortunately this seems to have now solved itself.

I ...
by andrewmoore
Thu Nov 14, 2024 5:13 pm
Forum: Customer/End User Help
Topic: HV2600 BMS capacity gone haywire since firmware update
Replies: 7
Views: 3823

HV2600 BMS capacity gone haywire since firmware update

Hi all,

On 11th November, the firmware for my H1-5.0 inverter and BMS/batteries was updated. Since then, the battery capacity estimation from the BMS has been all over the place.

I have 5x HV2600 V2 batteries and prior to the upgrade, my estimated max capacity was ~10.25 kWh. As seen from this ...
by andrewmoore
Mon Nov 11, 2024 1:26 pm
Forum: Customer/End User Help
Topic: Potentially inaccurate CT clamp readings
Replies: 1
Views: 1148

Potentially inaccurate CT clamp readings

Hi all,

I've noticed recently that the grid CT clamp reading for the for my FoxESS H1-5.0-E inverter differ from other sources.

For example, on Friday these were the reported grid import numbers:

FoxESS Inverter: 13.4 kWh
Electricity Meter: 14.52 kWh
myenergi Harvi: 15.48 kWh

Now, it's hard ...
by andrewmoore
Fri Nov 08, 2024 2:41 pm
Forum: HV2600
Topic: HV2600 missing capacity - help me understand
Replies: 0
Views: 4341

HV2600 missing capacity - help me understand

Hi all,

I've had 5x FoxESS HV2600 v2 batteries for a while now, and it seems the actual total capacity isn't quite right.

Here are my numbers of what I think the total capacity should be:
- Advertised Capacity: 12.8 kWh
- SoH: 95%
- Total Capacity: 12.16 kWh

However, in reality, my total capacity ...