Reputation Activity
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Yellow Measure got a reaction from Boerseun in Huge Sonoff Giveaway!For sure it's a cool giveaway!
AFAIK the smart switches require neutrals to be present, so the winner might have to do some remedial wiring of a circuit or two, but it's worth it. And I'm dying to try out my new TEMU wire puller that I bought on special.
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Yellow Measure reacted to Boerseun in Huge Sonoff Giveaway!Zero One
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Yellow Measure reacted to dax021 in Huge Sonoff Giveaway!To be technically correct, a number BETWEEN 0 and 100 includes 1 to 99. A number FROM 0 to 100 includes the 0 and 100.
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Yellow Measure reacted to Powerforum Store in Exciting Official Powerforum Review – Kynee ES-LV-16 16.08kWh Floor Type Battery in a Real Off-Grid Micro Grid!Kynee ES-LV-16 Update Real World Testing Progress
Hi all,Here’s a progress update on the Kynee ES-LV-16 after several weeks of continuous operation in my micro-grid.
Efficiency & Temperature
Behaviour Round trip efficiency is measuring consistently around 98%.
I have also been charging and discharging the battery at a constant 6 kW.
During these sustained high-power sessions the battery shows only a very small temperature rise above ambient.
Ambient temperatures over the test period have ranged from -2°C to 22°C, and the pack continues to run impressively cool.
BMS Communication & Flexibility
I have switched the battery between different inverters and the BMS communication happens seamlessly every time after selecting the correct protocol in the Kynee App.
It also performs very well in pure voltage mode.
Capacity & Cell Quality
Although the design capacity is listed as 16.08 kWh, I am consistently able to extract close to 17.6 kWh from the battery.
This is a strong indicator of high-grade, new cells. Nominal capacity is calculated at 51.2V × 314Ah = 16.08 kWh.
Delivering close to 17.6 kWh means the cells are actually producing significantly more than their rated 314Ah roughly in the 340Ah+ range.
New, high-quality Grade-A LiFePO4 cells often show this kind of over capacity when fresh. Lower-grade or aged cells rarely deliver this much above the rated figure.
BMS App
The Kynee App remains one of the strongest points of this battery.
It is extremely comprehensive and offers a high level of visibility and control.
Key features I am making use of include:
Detailed real-time cell-level data (individual cell voltages, multiple temperature sensors, balancing status)
Clear historical logs and graphs
Easy protocol selection for different inverter brands
Comprehensive alarm and protection event logs
Parameter monitoring
Reliable remote access over WiFi
I am still figuring out the best way to export the data from the app so I can analyse it properly on my computer.
I will post screenshots of the app and detailed charge/discharge curves at a later stage once I have sorted the data export.
Ongoing Testing
I will continue both short term and long term evaluation, including further capacity verification, higher load testing, extended cycling, and long term capacity retention monitoring.
More detailed updates will follow as the data builds up.
Happy to answer any questions.
Cheers!
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Yellow Measure got a reaction from Boerseun in Upgrade Your Old Pylontech Batteries – Exclusive Trade-In Offer with Solar Deity & Powerforum!The $100–150 range is for the US. See my second post -- it states that it is vastly different in South Africa, resulting in some people actually having to pay the recycler 😦
Fully agreed.
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Yellow Measure reacted to Sonoff Africa in Huge Sonoff Giveaway!Hi
We are licensed by Sonoff to Export to SADAC countries, but unfortunately we currently don’t have any local partners or installers in those countries. The biggest challenge is the local regulation in country and having the products certified with local authorities.
In South Africa we certify with National Regulator for Compulsory Specifications (NRCS) and ICASA. It’s quite costly and is only valid for 3 years then we can get 2 year extension and after that we have to get new certification.
The Sonoff product need good internet and Wi-Fi to work. There is a offline solution like Sonoff iHost or HA which can run the products locally on a LAN.
Regards Aleks Sonoff
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Yellow Measure got a reaction from Energy-Jason in Huge Sonoff Giveaway!Grok says that it's ok for a game or a raffle, but no serious crypto.
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Yellow Measure got a reaction from Energy-Jason in Huge Sonoff Giveaway!https://ivanludvig.dev/tech/google-random
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Good day Gents,
It has been a minute since an update: The idea in this instance was merely to get the inverter up and running. However there are a few minor complicating factors that can make this impractical. Components availability is the primary area of concern, because a number of the components employed, are not off the shelf. Having exhausted a number of avenues as well as myself in the process. I initiated contact with Luxpower. I waited and waited until I eventually received a response.
We have maintained a near daily contact, which ultimately resulted in the reception of two “DC Board Assemblies” and one LCD screen assembly. Circumstances are 1 on 1. However, I am of a strong belief that they will reasonably assist in any way possible, so long as the request(s) are reasonable.
Brand new board assys /w drivers: Both are several months apart. From mid 2025 to late 2025. How do I know? The date code is on the xfrs. There are at least 3 separate revisions. Based on part numbers
Brand new LCD assy
Board being replaced (missing the two GDT) “isolation transformers) those had a date code of 2316 or the 23rd year and 16th month. (The cable retainer was removed from the original board and installed on the second new board) It broke in transit and took but a minute to remove and reinstall.
This will be a very difficult week, and I am not 100%. In addition, I have not yet received the thermal grease priorly ordered, per manufacturer’s specifications. Next week I will provide a final update on a complete and fully functional hybrid Inverter, one that I have really grown to love and the little bits that sets it apart from other inverters, that I have not had the greatest of success with; longevity speaking. I can say this much: unlike most companies, Luxpower has owned up to its mistakes and has made a pledge to prevent future failures such as this. As a sceptic; I genuinely believe that they will. Having once worked in PCB manufacturing and later, IPC Compliance ISO 9001:2015 there are significant differences between the mainboards. Same parts different quality controls.
***Note*** I am not in any way affiliated with Luxpower or its subsidiaries; otherwise my inverter would have been repaired several months ago.
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Yellow Measure reacted to Mauritius B in New to forum, not new to solar...Update:
545wp Longi PERC panels replaced by 665wp Akio bifacials. From 2180wp to 2660wp+bifacial on the same footprint.
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Yellow Measure reacted to GreenFields in Upgrade Your Old Pylontech Batteries – Exclusive Trade-In Offer with Solar Deity & Powerforum!Okay, so then the R2K on offer (approx $120 USD) is about middle of the road or average for the reported international scrap value of the battery. Just stating the obvious.
I'm sure the newer batteries are better and more desirable, but each one must maar decide for himself how much his old generation battery is still worth to him.
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Thinking/speculating a bit more about the on-board power supply, there is probably a single power supply connected to the DC bus that powers all the electronics - so there is probably some fat in the 12V supply.
This is a good suggestion, will check to see how easy it is to make a connection inside the enclosure.
Thank you for your input!
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Yellow Measure got a reaction from CobusK in Huge Sonoff Giveaway!Wow. You must be a hoot at parties.
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Yellow Measure reacted to Powerforum Store in Power Forum 2KW Variable Pitch and 1KW Fixed Blade Wind Power Project.Hello All so just an update more than 6 Months later my turbine is still working fine needs to be serviced however will get to it sooner or later
Great wind the past couple days this is only pure wind power production the data interval on the inverter makes the production look erratic however its pretty constant even though the wind is quite gusty. Also got the turbine logger working will share some data from that at a later stage.
As you can see on this graph the wind power kept the battery almost at the same SOC throughout the night only dipping off a little at 5:45AM had to run some heavy loads last night to get the SOC to go down so ran the aircon in heating mode had the geyser running etc.
Wind is still pumping however not enough load and the battery is 100% full so the turbine is currently just dumping power to its dumpload.
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Yellow Measure got a reaction from Scorp007 in Which battery to match with the Synapse Powerlite 5.12kWh?Kynee is a huge company in China, they even white-label their batteries to other manufacturers. I recently purchased the Hina ESS PowerGem Max, at the time I new nothing about Kynee and I assumed that they were new entrants with no track record, that's what steered me towards the Hina. Imagine my surprise last week when I discovered that the Hina ESS is basically a white-labelled Kynee!
The Hina ESS (Kynee) has excellent build quality, packaged very well, and the documentation that comes with it is glossy and superb. The Hina app is not as good as the Kynee one though, there is far more information and settings available on the Kynee app, so the Hina app in comparison looks a bit "dumbed down". I guess that it's OK if you don't want to be in control of everything.
Had I known what I know now, my purchase decision would have been different, and I would have benefitted from saving a few thousands of rands buying the Kynee.
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Yellow Measure reacted to GerhardK83 in Random Inverter Side Earth Leakage TripSince you are not technical then in order to determine if the earth leakage is on the AC supply to the inverter or AC output of the inverter switch the earth leakage off and if the inverter goes to battery mode then you know that the earth leakage is on the supply side and if the inverter does not go to battery mode then the earth leakage is on the AC output of the inverter.
The alternative is to ask the installer or an electrician to come and inspect the installation to determine if the earth leakage is on the AC supply to the inverter or AC output of the inverter and draw a diagram of the system.
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Yellow Measure reacted to Denns in Random Inverter Side Earth Leakage TripCan be anything really. Diagnosis of such a fault is almost impossible unless there is some tester I’m not aware of that can find it for you.
I can be the light circuit, pool circuit, the DC side on the panels, it can be anything. Sometimes you just have to wait until it becomes really bad then you can easily identify which circuit is the problem.
Until then you will be hunting for an intermittent ghost. If you are lucky the fault will stay on long enough so that when you attempt a reset of the EL it trips again then you need to quickly check which DB circuit it is.
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Yellow Measure reacted to KevinH in Another website to stay far away fromPower Vault Za is a scam powervaultza.co.za
They have been involved in pet scams as well, please dont purchase anything from them you will not get anything.
Once again they spoofed this domain powervault.co.za and just added a za at the end.
Artists Against 419
aa419 report: powervaultza.co.za
PowerVault ZA is used for a Non-delivery scam, 185 Old Pretoria Road Halfway House Midrand, Tel/WhatsApp: +27 63 432 5295, +27634325295, [email protected] -
Yellow Measure got a reaction from GreenFields in Upgrade Your Old Pylontech Batteries – Exclusive Trade-In Offer with Solar Deity & Powerforum!I think that you are onto something, and I like your approach, but words matter. Raw material value would be the input materials at the Pylontech factory, before they assemble it, test and put it on the market as a brand spanking new battery.
Salvage value would be the value of the battery after someone has used abused it by applying "a few high voltage charges", and it swells up like a marshmallow in a microwave.
I asked Grok, who gave a detailed, interesting response:
So it turns out that chemistry, condition, location and volume are relevant (no extra dollars for the marshmallow ones!). Hubble AM2s are NMC, Pylontechs are normal LFP. And remember: this is in the US, where they have recycling industries that can leach the chemicals and re-use them, not South Africa. So I asked Grok again, this time specifically Pylontech US3000s, and the response was that in SA, one would basically have to pay the recycler to take it away 😄
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Yellow Measure reacted to Boerseun in Upgrade Your Old Pylontech Batteries – Exclusive Trade-In Offer with Solar Deity & Powerforum!Eish met Coke yup !!!
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Yellow Measure got a reaction from Boerseun in Upgrade Your Old Pylontech Batteries – Exclusive Trade-In Offer with Solar Deity & Powerforum!I think we need to stop here, before the Mods nail us for making them spill their hot chocolate...
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Yellow Measure reacted to Boerseun in Upgrade Your Old Pylontech Batteries – Exclusive Trade-In Offer with Solar Deity & Powerforum!Rotfl PHD !!!! Next Level !!!! I subscribed and got the badge!
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Yellow Measure got a reaction from Boerseun in Upgrade Your Old Pylontech Batteries – Exclusive Trade-In Offer with Solar Deity & Powerforum!The Coulomb Counting is a separate field of study entirely, reserved for the PHD Program at Buttery University 😆