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Posted

I know the polycarbonate isn't fire-resistant.

 

But it was in the shed, I can lift it, and it keeps the cat/chickens out (yes, I removed the eggs from behind the smaller packs).

 

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Posted
On 5/3/2024 at 3:43 PM, Crossy said:

Hernia anyone??

 

Those Liyuan 280Ah x 48V battery packs are about 110kg each!

 

No, I didn't lift them in! :whistling:

 

We just happened to have a couple of Thai labourers re-building (actually knocking down) our damaged retaining wall. A hundred Baht each (probably about 30% of their day rate for demolishing the wall) and they were more than happy to oblige.

  image.thumb.jpeg.242d3a4891023b47c824d69a53301647.jpeg

 

Keep an eye on the cells in your new battery packs. I installed an identical battery pack (from same seller) in January, and after just three months of very gentle use (as you can see from the cycle count) one of the cells is already failing:

Screenshot_2024-04-29-10-32-06-405_com.jktech_bms.thumb.jpg.d2080626561b23be9339d0bf558384be.jpg

 

To protect the cells I set the low voltage cut-off at 3V, and when cell 9 reaches that voltage the other 15 cells are still close to 3.3V (approximately 70% SOC). As a result I have very little usable capacity in the pack. Clearly, cell 9 has a manufacturing defect, even though it looked OK when i first received the battery pack.

 

I have sent all the evidence to Luyuan, and am waiting for their engineers to take a look at it.


 

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Posted
36 minutes ago, Sophon said:

I have sent all the evidence to Luyuan, and am waiting for their engineers to take a look at it.

 

Do let us know how you get on, reports on other forums are generally positive for Shenzen Luyuan Tech. Co. Ltd.

 

https://szluyuan.en.alibaba.com/index.html

 

 

 

  • 4 weeks later...
Posted
1 hour ago, Crossy said:

Inverters have arrived.

 

All good.

 

The boxes look nice.

 

But I wouldn't say "all good" until after switch-on and all the blue smoke has dissipated...........

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Posted
37 minutes ago, Muhendis said:

 

The boxes look nice.

 

But I wouldn't say "all good" until after switch-on and all the blue smoke has dissipated...........

Pessimist:)

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Posted
47 minutes ago, carlyai said:

Pessimist:)

 

Sometimes my sense of humour leads me to wonder why I have not been shot yet.

 

I hope all goes swimmingly every Deye  day after switch-on

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Posted

Gonna power them up tomorrow to verify they are the same S/W version.

 

Manufacturing data suggests they will be but ...

 

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Posted
2 hours ago, Crossy said:

Gonna power them up tomorrow to verify they are the same S/W version.

Based on mfgr date they most likely also have the latest firmware in them already but if you need to update them it can be done remotely by Deye.

Send a request email to service(at)deye.com.cn and give them the Inverter serial numbers and the logger serial numbers and keep your inverters on-grid until they have done the update.

Congrats to a good purchase, I'm sure you will not regret it!

Posted
21 hours ago, Muhendis said:

But I wouldn't say "all good" until after switch-on and all the blue smoke has dissipated...........

 

Both powered up OK, no smoke of any colour observed 🙂 

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Posted
5 minutes ago, Crossy said:

 

Both powered up OK, no smoke of any colour observed 🙂 

Great news.

How about the software.

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Posted
Just now, Muhendis said:

Great news.

How about the software.

 

Yeah, same version. Not worried (yet) whether it's the latest and greatest.

Posted
On 6/9/2024 at 1:47 PM, Crossy said:

Inverters have arrived.

 

All good.

 

image.jpeg.690b00fa513f01b038581c3d7cb6bce5.jpeg

It feels great when waiting for the right offer is rewarded.

 

Pink

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Posted
On 6/7/2024 at 11:14 AM, Crossy said:

Patience is rewarded, Lazada have two 15% "6-6" discount vouchers (having two is unusual).

 

So, I bought two Deye 5kW inverters (two separate orders, 1 voucher used on each), one order got an extra 50Baht off for using my UOB card 🙂

 

12k will get quite a lot of beer :whistling:

 

 

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34k for Deye must be great value. Look like prices in Thailand on Inverters getting better..I saw the Growatt was at better price in Thailand now also.

 

Pink

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  • 3 weeks later...
Posted
18 minutes ago, Crossy said:

I feel another Deye inverter coming on. ...   and there's room for at least 9 panels!! :whistling:

Nice ... :cheesy:

 

Hindsight, should have got two 5kWh instead of the 8kWh inverter.   As still not really enough just for the house.   As we only run the AC in the bedroom at night, where we are anyway.  Dinner done & over with by nightfall.   But if we entertained, we'd have to take the ESSs down below 60%, which I don't like doing

 

So even a 3rd 5kwh inverter & panels would be better, along with another 10kwh of ESS.  15kWh of inverters & 30kWh of ESS would be just enough to be properly 'off grid' 24/7.  Provide that extra juice at night time, for those that entertain, or need the rest of the house for what ever.  If having kids and another AC going all night, then it would be required.

 

Hard for many expats that retired at 65 or older, to justify the cost, especially if not married to a 20 year old younger wife, who will appreciate the savings long after I'm gone.

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Posted

This is the inside of the patio roof using our thermal-imager.

 

Bonus points if you can tell where the solar panels end 🙂

 

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Posted
49 minutes ago, Crossy said:

We are actually now limited by the capabilities of our older Sofar inverter only being able to do 3kW PV => batteries

Don\t forget to derate your panels.

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Posted

The sun has got his hat on ...

 

Now, about that 250A MCCB I have as my main battery isolator ...

 

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  • 2 weeks later...
Posted
On 5/6/2024 at 9:57 AM, Sophon said:

 

Keep an eye on the cells in your new battery packs. I installed an identical battery pack (from same seller) in January, and after just three months of very gentle use (as you can see from the cycle count) one of the cells is already failing:

Screenshot_2024-04-29-10-32-06-405_com.jktech_bms.thumb.jpg.d2080626561b23be9339d0bf558384be.jpg

 

To protect the cells I set the low voltage cut-off at 3V, and when cell 9 reaches that voltage the other 15 cells are still close to 3.3V (approximately 70% SOC). As a result I have very little usable capacity in the pack. Clearly, cell 9 has a manufacturing defect, even though it looked OK when i first received the battery pack.

 

I have sent all the evidence to Luyuan, and am waiting for their engineers to take a look at it.


 

 

Did you get anything back from Luyuan?

 

Our packs are behaving well and staying well in-balance (we do have the optional active-balancers).

 

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