JamesF

Hi There, I am using a Greenrich UP5000 for nearly 2 years, and this past week I could hear the Sunsynk "beeping" in the night. Rush to the device to see no error or alert. Upon looking into logs and data - I can only see that at the times of the "beeping" the recorded temperature dropped to -100° (obviously not literally). Room temp about 12° Anyone else see this, or experienced this? There was no change to current, SOC or voltage at these times...

My Thoughts: You have a leaking hot tap in the house, and the geyser is being flushed/refilled with cold water continuously. (is the water hot enough to use when it says "25" on the Geyserwise?) If the water is hot, then faulty temp sensor, if the water is cold, see point 1.

Did you come right? I have 1 or 2 if you need?

I have just requested an upgrade due to "notification bug". I no longer get alerts when grid disconnect/reconnect. 5Kva SunSynk Current: M:3.3.7.4, S:1.5.1.5, CE.4.2.4 Pending upgrade at the moment - lets see what changes.

I have 8 panels on 1 string. 2nd sting not in use.

Hey, Any change on this - I used to get both (connect and disconnect) notifications - now I get nothing. I would need to manually go into the app, and check the feeds.

Hello all! As usual - please send me to any existing posts if this is a duplicate. I have a Sunsynk 5Kva, 3.5Kva PV, and a GreenRich up5000 battery. All is well and good working great! (About 1 year old now) I want to add an additional battery for more capacity - Sunsynk 5.32kwh. 1. Is this possible with 2 different (rated) sizes of battery? 2. Is this possible with 2 different brands? 3. is this recommended? Cheers,

Huge thanks to @Leshen who helped me with the settings (and some expert explanation) for the SunSynk! Working exactly as I expected!

I will test this when I am at home with full sun. I can get the excess PV to power non-essential, however, if all load (essential + non) is in excess of PV production, it starts to draw from the battery. I don't want this. I want it to draw from the grid. Also, what happens, when all load (essential and non) is in excess of the capacity of the Sunsynk unit? ie, load = 8kva (geyser, pool, washing machines, dishwasher ect... ) will it trip out, or start to draw from the grid directly? When I did some tests, It seemed the load was supplemented by the grid, but the inverter was running at 8kva?? I only have a 5Kva unit, so is this just a display/reporting misrepresentation, or am I maxing out the inverter?

Without a wiring change or additional change over switch dedicated to your geyser, the system cannot power your non-essentials WITHOUT grid present. However, with grid present, you can "export" your solar to non-essential loads. This is poor wording, as its not really "exporting". I am about to start a thread on this, as I have been playing with this over the last few days.

I am way more interested in reverse feed - net zero grid usage. Anyone have (a new) thread or link to any of that? (CoJ). Cheers,

Massive thank you to @LoodPyp for helping me out with some of his old working kit! Successfully installed and working keeping some light on at my elderly parents' home!!

No - This is a 3.7Kwh battery. Greenrich UP5000 is the 5Kwh version. You have been quoted on the Greenrich UP3686.

I have a 5Kw SunSynk (same same) and mine runs the same temps. However, I do not have fans. Mine is installed in a pantry, with dishwasher and washing machine, so a fair bit of ambient heat. And I have solar installed. However, your BMS is much more of a concern, as your UPS needs to know what the battery is doing. So I would fix that way before the heat!

I use a SunSynk 5Kw with a Greenrich battery, and it floats between 99% and 100% (grid or solar.) It must be something to do with the BMS floating - not over charging. It only happens at 99-100% Check my batter below - I set different SOC minimums for time of day (to reduce my reliance on grid as much as possible.) When set to 80% SOC, its perfect. When set to 100% - its hovers between 99% and 100%.

Hi All, Looking for a 24v or 48v inverter to help my parents. Batteries not required. Thanks,

Be careful - UPS backup without solar will lead to an INCREASE in utility costs - it takes more energy to charge batteries, than it does to discharge. ie, 2 hour loadshedding at 500wh = 1000Wh consumed. To charge those batteries back to full will take more than the 1000wh consumed.

I use a Greenrich UP5000 battery with solar on the SunSynk 5.5Kva inverter. Very good battery, no issues at all. Installed in August 2022. "2C" discharge means that the unit can produce "twice its rated current over time". The Greenwich is a 5Kwh Battery. At 1C, it could produce 5000w for 1 hour, or 500w for 10 hours, ect.. At 2C, the battery can produce 7500w (maximum rated) for 30min. Also, keep in mind that your inverter will need to handle 7500w for that to make any realistic impact. Checking the specs of your Growat inverter, it can only handle 7500w for 5s before overload, so no need to worry about the battery.

@JanPKotze Sounds like a faulty battery, however, what is your DIP switch set to? If you only have 1 battery, then only DIP 1 should be up? (1000) Or all DIPs down to represent master. If you have more than 1 battery, the second battery would be set to 0100. This allows the UPS and the battery BMS to communicate correctly and balance load, charge ect.. (Only applicable if you have more than 1 battery in parallel)

Hey @RonnyT I've had it since August 8th, no issues, still in use! Very happy!

Depending on the load, just use a Ripple Relay / Ripple Switch?

I have my whole house on the SunSynk EXCEPT: Stove, oven, pool pump and geyser. 4 bedroom house, 2 kids: Average general consumption hovers between 400 - 700Wh. So with that, I get 9 to 11 hours without the sun. However, I do boil kettle, use microwave and air fryer for breakfast/dinner times, so that can consume. During the day with sun - easy the whole house, including fans, dishwasher, washing machine, iron - no problems. Here is an average day usage (yesterday).

No.

My Input: I have a 5Kw SunSynk and a 5Kw Greenrich lithium battery - both are awesome. Friend of mine has the same setup, but with a Daye - no difference. Daye is the original manufacture, and SunSynk is the "western rebrand". All 3 are good, reputable brands, will come down to costs. Victron will be the most expensive by a long shot. --- Re: the comment about adding solar later. You can do so without changing the inverter - it will just need to be rewired correctly. I have 8 x 455w panels, and to add 2 more for example, will require a full require of the sting. But my inverter will be fine.

Hey, no lick: New firmware - no change Reversed fans - no Change External fan did help, but had to balance the one noise for the other... I sold the unit, got a 5.5Kva Sunsynk - much happier!!