Anyone got a Deye 10kW inverter - thoughts and experience?

[Sophon]

On 6/23/2025 at 6:34 PM, Sophon said:

 

No everything looked factory sealed. Here is a (hopefully) better picture:

 

It looks like there is some kind of small device at the end of the wire. Could it be some kind of sensor/wireless communication device (I have no idea how small a BT transmitter can be).

 

 

I received this reply from Deye customer service:
 

Quote

This cable is used in conjunction with a DRM board. If you don't need it, please ignore

 

[atpeace]

On 5/14/2025 at 10:56 AM, Sophon said:

I have a cheap Chinese PowMr 8.2kW inverter. It runs OK most of the time, and handles 5-6kW loads fine for a short period. However, if we run constant loads of 2.5-3kW or higher for two or three hours, then the inverter at some point overheats resulting in it derating or shutting down.

 

I think it's time for a new, higher quality inverter. I was thinking about the Deye SUN-10K-SG02LP1-EU-AM3 inverter (I don't want to run two 5K inverters in parallel). Our absolute maximum load (when shower heater plus some other loads are running) is 6kW, and the maximum constant loads for extended time is around 3.5kW (when charging the EV). I would expect the Deye inverter to be able to handle that without any problems and without overheating. I can get this inverter on Lazada/Shopee for just under 70k baht.

 

Before buying, however, I would like to hear the experiences of other board members who have Deye inverters. Have any of you had any problems with overheating/derating when running large'ish loads? 

Also, I have two battery packs with different inverters connected in parallel without communication between inverter and batteries. That works well for me. Can the Deye inverters support batteries without establishing communication between inverter and batteries, i.e. you just input charging voltage, at what voltage to switch over to grid etc.

 

Thanks in advance for your input.

 

Think you may have got a lemon.  My cheap Anern 6.2 kW runs for hours above 5kW and doesn't get more than warm.  Maybe you have a termite nest or something is obstructing the fan that is causing the loud noise you mentioned. The hassle of replacing what you have already and spend another 70k would be avoided if it was me.  At worse simply adding a regular table fan would probably suffice after cleaning the interior.  

 

I'm amazed how much money people spend on their systems here and then upgrading them.   For 99% of people I assume the ROI is never going to be a reality.  I saw one poster stating a 6 year ROI but he just replaced his deep cell batteries he purchased just a few years prior.    IMO learn to make what you have function whenever possible and try to ignore the mind screaming at you to spend more money 🙂  I have feeling like me you have too much extra cash and you convince yourself to constantly upgrade things that are just fine as they are which the wife finds entertaining. She just replaced her 9 year old Iphone 🙂

[lom]

3 hours ago, atpeace said:

I saw one poster stating a 6 year ROI but he just replaced his deep cell batteries he purchased just a few years prior. 

I assume you mean deep cycle batteries.

If they are of lead-acid type then they have quite limited lifespan unless you make sure you don't get below 50% depth of discharge so it could have been the reason for replacing them.

If they were old type Li-Ion batteries then it sensible to replace them with LiFePo4 batteries for safety reasons regardless of their condition..