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I needed qty 16 EVE 280K cells in a rush and my normal supplier was out of stock at their US warehouse. Searched on Alibaba and found Shenzhen Oneier Technology Co advertising Grade "A" Eve 280K cells with stock in US warehouse. I reached out and was contacted by Lucia Luo. She was responsive...

Below is the QR code for EVE 280K cell I recently received. Curious to hear from folks that have figured out the code if this is an A grade or B grade cell and when manufactured. The deeper question, for solar storage application with relatively low C rates and maintaining SOC between 30-90%...

Diving in on building an off grid PV system for a vacation home in Baja. Building in a remote location so simplicity, redundancy, ability to monitor remotely, easy to " swap out"should there be problems are important criteria. Size/weight is also a consideration as need to drive the components...

Just ordered 32 of the EVE 280AH cells for my first DIY LiFePO4 build for an off grid solar system using two MPP Solar 3KW inverters (paralleled) and 5KW PV array. First question; which is better, a) two banks of 16 cells, each with a seperate BMS, then connected in parallel (16S,2P); or b)...

Does anyone know what triggers the Growatt 3000 to exit float mode and resume bulk charging? After powering on my system and connecting the array, bulk charging commences until absorption setpoint is reached and then charging goes to volt mode. But what triggers the resumption of bulk charging...

I recently received 32 EVE 280 cells (from Xuba-Amy) and have assembled them in a 2P16S configuration with Chargery 16T BMS. I opted to skip top balancing as resting cell voltages were within 25mv (lowest to highest), I did not have a power supply available and impatient to build after waiting...

Growatts monitoring platform (Shine Server) displays battery SOC which for my system always displays 100% even thought battery voltage is typically going from a low of 52 up to 55.5V. (my battery is 2P16S 280AH LiFePO4 cells). Does anyone know how Growatt calculates SOC and where you input...

Trying to troubleshoot an issue and hoping that other Growatt/MPPT owners might be able to help. Does anyone know what triggers the inverters to stop solar charging after reaching float voltage and what triggers them to resume charging? Is charge termination and resumption based on voltage...

In the summer months my off grid system (5.5kw PV; 32kwhr battery, 6kw inverter) has the capacity to produce more energy than my system consumes. On most days my batteries are fully charged by 11am and my PV MPPT charger (2- Growatt 3000 LVM) will start limiting energy harvest for the...

According to the manual the low voltage cut off setting 22 (voltage that the inverter will stop discharging) is settable in a range of 42-48V which is on the low side for a LiFePO4 battery bank. (I would like to set mine at 51.5V) Has anyone figured out a work around for this? Much better to...

https://www.alibaba.com/product-detail/2A-Active-Balance-Battery-Protection-Board_62025394663.html?spm=a2700.galleryofferlist.0.0.3ab641ecKNLWMu Anyone tried this BMS along with the monitoring App? Any info appreciated. No doubt it is covered somewhere on the forum already....

I have an all in one inverter with built in MPPT controller that I would like to test, but don't have a PV array available at the location where I am testing. I do have a 30V, 10A power supply but my inverter is 48V and the minimum input voltage for the MPPT controller is 60V. So could I...

Revisiting an old post but curious to hear what folks recommend for a BMS (100A 16S) that facilitates easy, off the shelf remote (off site) monitoring? By easy I mean does not require building special hardware or software. Anything new out there?

Ordered some replacement cells for my battery bank and the new EVE 280 cells I received have studs rather than treaded insert. Thinking I will add studs to my existing cells so all are the same. Can anyone point me to a good source for studs that work with the EVE treaded post (6mm) Thx

I would like to fine tune my charging settings to maximize the cycle life of my LiFePO4 battery bank (2p16s 280AH cells). Solar is the only charging source. Following the recommendations on this forum I initially set bulk to 56.4V (3.53) and float to 54V (3.38). With those settings I...

I have a system with 2 Growatt 3000 (operating in parallel) and Chargery BMS with separate charge and discharge relays (external 250A DC contactors). With this configuration the BMS opens the discharge relay on discharge related faults, and the charge relay on charge related faults. PROBLEM...

I have a 100A Daly BMS and the SOC accumulator only decreases over time. The instantaneous current meter shows bi directional current flows but the SOC accumulator only goes down over time. I have another Daly BMS on identical parallel battery bank and the SOC accumulator works on that one...

In the process of building a Salt Water Reverse Osmosis (SWRO) system and would like to power the high pressure pump directly from my 16s LiFePO4 battery bank to avoid taxing my inverters and gaining some system efficiency. 48VDC motors are available in the HP range I need but have not been...

A neighbor ran his 16S LiFePO4 EVE 280 battery bank down to zero while he was gone for an extended period. I am trying to see if it can be brought back to life. I have charged up some of the cells and then tested capacity, and measuring 250-280AH on various cells. Based on a single test it...

No doubt it's been covered in previous threads (quick search no results)... What is the bolt size and material (stainless, plated, AL, ...), and recommended torque settings for tightening bus bars on the the Eve 280 cells? Are folks using any type of anti corrosion coating on the the...

Taking a look at SRNE inverters which apparently use the Solarman app for remote monitoring. Curious to hear pros & cons from those using the app and how it compares to Growatts Shineserver app. (which has its flaws but after using it for 3+ years must admit it gets the job done). Thanks

Anyone know if Growatt SPF LVM can operate in parallel with SPF LVM-ES? I was hoping they might, as they are very similar models, with the ES version being capable of operating without battery. I have 2 SPF LVM operating in parallel and wanting to add a third and a friend has a ES version they...

Installing a 1000W inverter in my pickup truck (12V-100A max)) which will connect to my trucks starting battery. I was intending on using #4AWG cable for both positive and negative conductors (about 20' run from batter to inverter location) but ran across an article indicating it would be...

Finally got my solar installed and able to charge at higher rates (~100A). As the day progressed the differential between my highest and lowest cells (cells 15 & 16) started to increase from about 20ma to max differential setpoint (100ma) I had set on my Chargery BMS, which triggered the relay...

Just hooked up a Chargery 16T 300 V4 to my 580AH (2p16s) LiFePO4 battery bank. Installation and configuration was easy, no problems. Now that its up and running I am seeing current readings jumping around (~30% variation when under a constant 10A charge current) and cell voltages jumping...

Thanks to this forum and all the posters, I am coming up to speed on various BMS brands/products/features. A Lot to absorb... Question; if high on your list of BMS features, is the ability to monitor and or adjust settings remotely via the internet, with fairly easy set up and user interface...

I have a Daly BMS 16S on three of my battery banks. All connected (via UART) with Solar Assistant. I recently top balanced some of the cells in my bank, before top balancing any of the cells I disconnected battery from main bus bar and removed the voltage sense ribbon cable from BMS. I did not...

Has anyone compiled (and willing to share) a list of all the off grid & hybrid inverters available and how the are related. For example Voltronic, MPP, Growatt, etc. are somehow related using similiar architecture as is Deye, SolArk and EG4 & Luxpower. Would like to better understand the...

Hoping someone can explain what is the difference is in Battery type USE vs USE2? What impact does it have on settings available and how the inverter perform? Which is better USE or USE2 when using a LiFePO4 battery bank (not a Growatt Battery) ?

Finally have my solar installed and playing with PV charging settings. The Growatts have 3 step charging; bulk , absorption, float. You can set the absorption voltage and float voltage, (but not current or time.) I have a 2P16S battery (48V) 560AH with Chargery BMS. I started by setting...