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GGW
@ggw
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Estimable Member
Joined: Nov 21, 2022
Last seen: Oct 20, 2025
Profile Activity
Topics: 1 / Replies: 52
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RE: New Fogstar 15.5kWh upright solution

Hey I ran active balancer for the first 3 cycles. Voltage on the screen looks in good shape per cell. Figuring out the Sunsynk however......

2 years ago
Forum
Energy Storage
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RE: New Fogstar 15.5kWh upright solution

Ok, I have ths mode turned on. How did you know what voltages to set on the inverter?

2 years ago
Forum
Energy Storage
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RE: New Fogstar 15.5kWh upright solution

SITREP 1. Evening charging seems fixed. Adjusting the shutdown, low battery and restart fixed that. Apparentl y the inverter wil...

2 years ago
Forum
Energy Storage
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RE: New Fogstar 15.5kWh upright solution

Grid Charge in battery setting is the 1 I suspect. Note - tried many setting to get it to stop charging this evening. I don't think I'd bu...

2 years ago
Forum
Energy Storage
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RE: New Fogstar 15.5kWh upright solution

Ok, I can handle that - will set for voltage mode and try. Regarding the evening charging - how do I combat that? Under battery settings, Grid...

2 years ago
Forum
Energy Storage
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RE: New Fogstar 15.5kWh upright solution

@robl So... The Sunsynk is not a intuitive firmware. That's is putting it mildly. The exchange between it and the battery, appears to be gettin...

2 years ago
Forum
Energy Storage
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RE: New Fogstar 15.5kWh upright solution

@robl Cheers for the screens dump - really useful. Battery charged fine overnight. Raises some questions, Your shutdown, low and restart are 0%, 1% ...

2 years ago
Forum
Energy Storage
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RE: New Fogstar 15.5kWh upright solution

Seems the timer was the issue, I had time 1 set wrong. Worked @08:00 and all day so far.

2 years ago
Forum
Energy Storage
Reply
RE: New Fogstar 15.5kWh upright solution

The manual says 80%DOD - for 3500 cycles My interpretation of that is 10%~90%. On other forums, the common consensus is 20%~100% = 80%DOD This i...

2 years ago
Forum
Energy Storage
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RE: New Fogstar 15.5kWh upright solution

So close..... @robl My battery discharged all day lovely got to 20:30 before it ran out - 20%SOC once it hit 20% - the Sunsynk immediat...

2 years ago
Forum
Energy Storage
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RE: New Fogstar 15.5kWh upright solution

@adrianmc Ive it setup 90% ~ 10% - to match the 80% DOD rate that is listed in the Fogstar manual.

2 years ago
Forum
Energy Storage
Reply
RE: New Fogstar 15.5kWh upright solution

@robl And as everyone said and expected, the CT cabling was the wrong way round. The manual is awful in that section, basically guess the colou...

2 years ago
Forum
Energy Storage
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