₦airaland Forum

Yes...the deye inverter can work with DIY batteries without comms support. That how my setup is currently.

Penuelseun:
Nice review, now I am torn between going for the TBB 5kw which is a transformer based inverter and also has a low idle consumption and this Deye. Which would you suggest? Also what is the minimum solar voltage this Deye can work with and can it work with diy battery without comms support?

I have a lithium battery with JBD BMS that I have been using for around 1yr now.
The issue with the JBD BMS is that the SOC reading on the BMS keeps dropping down from 100% even tho the battery is fully charged until you "reset capacity" on the BMS settings.
To fully explain, let's say the battery SOC is at 100%, in 3 days time, it will stop at 95%. In a week it will be at 90% and so on. It will keep dropping even tho the battery is getting fully charged every day.
One time I jst ignored it to see if the drop in SOC will stop at a certain % bt I had to reset the capacity wen it dropped below 80%.

Jefferyzz:
I coupled my cells with jk BMS and what you mentioned is true. At times my BMS will read 99% and 30a plus will still be charging the battery with 0.006 cell voltage difference. Just like you mentioned, users needs to pay attention to pack voltages not just the battery percentage especially when one of those cells don't trigger the BMS HVD which will recalibrate the BMS. I didn't use jbd long enough to know if that's same with them. Jbd or Daly users should let us know if they experience such.

Dam5reey1 clearly stated that his post is for educational purpose only.
Besides everything he said there is totally true becus i experienceed it with one of my lithium batteries just last week. The battery was barely getting to 100% SOC daily due to undersized panels and a high dust in the area.
Last week, the inverter cut off power, beeping low battery bt the display on the battery was at 48% SOC and i was surprised.
I called Valto whom i got the battery from and he told me to charge the battery until it stops receiving current and also to ignore the display on the battery even if it is showing 100% and charge the battery until it stops taking current that the BMS will recalibrate itself. I did exactly as he instructed and everything is back to normal. The BMS has recalibrated itself.
I believe Valto didn't explain all the details that Dam5reey1 went into in his post with me becus he knows I jst wanted solution and not explanations.
And before you say I am being biased myself, Valto is my plug for lithium batteries. I hav bought over 6 batteries frm him. Three (11.7kwh, 14.3kwh and 16kwh) batteries personally for myself, and more than 3 through my recommendations to my friends and installer). And all are performing excellently well.
Infact, I am planning to buy another 16kwh battery from him for a friend next week.

PS- I have oversized my panels in that location and my battery gets fully charged every day now.

brightk:
if u want to discredit someone,please do it in a way no one suspects u of been envious.......

Pls, what is the current price of the Deye 5kwh battery?

swagifted:
this deye battery don de approach BYD price point for nigerian market(5kwh version) ...

Omo...these steep roofs(send down the rain roofs) are really bad for solar generation.
These past few weeks, my battery has barely charged past 45 to 50%. Something that gets to 100% b4 2pm before now. It's seems the sun direction has changed. Now it currently favours North on my roof while my panels are facing south.
The solution now is an expensive solution. I need to install new panels facing north and buy a new charge controller and cables

By the way, who sells growatt 120A charge controller. I need one for this upgrade.

Between , hope my lithium battery not charging to 100% daily won't affect it?.

@OP, this right here is the advice you NEED

ecomalchemistt:
1.5 wetin… e too much sef…any business wey Dey fetch you 20 - 30k daily , take am serious like your life depends on it !!!

Its a good business, i call it blood money business..you can actually make 50 - 100% profit on each item you sell.


fast moving products (fast chargers, powerbanks, speakers, smart watches, kiddies tab, usb cords, rechargeable handheld fans, memory cards, earbuds, laptop stands, tripod stands, ringlights..etc)

the list is just too endless....

buy from importers or dealers at wholesale price and retail in bulk, cut down on your expenses, save money daily, be courteous while attending to customers, issue receipts on purchased goods, re invest the profits back into the business and watch it grow !!!
you need to be situated in a very busy location where there is foot traffic.



if you are starting out, you don't necessarily need a shop at the moment, you might just need a showglass in a busy marketplace.

This business can be combined with Phone charging and POS simultaneously...so you are making money on all ends.


to get products, stick with popular brands that are less expensive and have good testimonials such as Oraimo, itel, chupez, tecno, poolee, remax, shplus, New age)…

Have a good speaker in your shop if you plan on getting one, load a memory card with a the latest jams on it and blast it..this will attract customers !!!

The last important update , go online and push your products !!!

2. Enter NYSC camp for that Umunna bendel, rent space , if you sabi wetin you Dey do, within 3 weeks.. e go be like say na juju you do… na where I serve be that. Set up charging point, buy 30 Powerbanks you can rent out (1k) daily… (you go collect 15k as insurance fee Incase dem run with the powerbank).. u gatts reason like street man with Orientation !… still rugged am with your POS (Moniepoint) for hand..you must have cash at all times !!!

Wo, hand Dey pain me… when you done make money come pay tithe abeg 💰

Ok.. thanks. Spoke to Valto earlier today and we've made some arrangements.

isangjohnson:
Zero8zeronine5six7four2six2.
The coupled 302ah 48v has been bought.
What is left now is the 16 pcs of 230ah eve cells and 8 pcs of 100ah eve cells.
You can get 16 pcs of 280ah from Valto and we can couple it for you as well.

Cant find your contact details on your profile

isangjohnson:
I've for sale 48v 302ah 15,462kwh lithium battery at 3.2m

15KW solar array Where person won see dat kind money....lol. omo na to off AC during bad weather oh.... hahahaha.
Anyways thanks for your suggestion.
Due to limited funds available at the moment, only the solar array can be upgraded to 7kw for now.
Loads can be adjusted for now also. Mayb jst the 1.5HP AC stays on for now.
Lets see how the setup handles the load then we plan the upgrade accordingly wen fund is available.

Dam5reey:
That's like a 3KW Load for 10 hours.
Increase your Solar to 10KW at least. 10KW with Average sunlight will give you 30KWH of Energy.
15KW Solar will be Ideal to cater for bad weather.

15KWH LFP minimum.

Hello house.
Pls I would like to knw if this solar setup can power these loads comfortably.
Solar setup
5.5kw solar array.
5kw inverter
10kwh lithium battery

Loads
1.5hp LG inverter ac
1hp LG inverter ac
2 TVs of 100w in total
Intermittent loads of up to 600w

Pls note that the setup is for a business place and will be use mostly during the day (from 9am to 7pm) .
Both ACs will be on through out the working hours.
Thanks

Thanks for your response. I really appreciate. The owner ended up connecting only 2 of the new panels in series with the previously installed 7 panels so as not to exceed the inverter max Voc of 500VDC And it worked fine.

Dam5reey:
You can combine them all in series but note that there will be about 10% loss.
with about 5KW PV, it doesn't matter.. losses cannot be avoided when batteries are full and nowhere for power to go.
If cost is not an issue, proceed to get Separate controller for the new panels.

All 7 panels are connected in series.
The Inverter maximum input voltage (Voc) is 450v.

Trippledots:
Installed 7 panels? What configuration did he use?

I'll suggest you go ahead with the addition if your CC can accommodate it. Remember that your PV rarely stays at Pmp state for so long. Except budget is not a problem.

Thanks for the response.
So best advise to prevent losses is to get a separate charge controller for both panels?
The total panels are 10. The owner initially installed 7 panels (PANEL 2), then he recently bought 3 panels (PANEL 1) to upgrade the installation from another source (Fouani).

Dam5reey:
In Series Result: 90w loss.
vmp 43.38 + 35.21 = 78.59 V
IMP = Lowest Amperage = 10.95A
That's 860W total as compared to two identical 475 panels 950W.

In parallel Result: 90w loss.
Vmp = Lowest voltage = 35.21 V
IMP = 13.49 + 10.95 = 24.44 A
That's 860W total as compared to two identical 475 panels 950W.

Hello house. Pls can i connect these 2 solar panels in series
PANEL 1
Vmp- 35.21v
Imp- 13.49A
Voc- 42.54v
Isc- 14.23A

PANEL 2
Vmp- 43.38v
Imp- 10.95A
Voc- 52.24v
Isc- 11.77A

Pls note that both panels are CONFIRMED original jinko panels bought frm different trusted sources. And both are 475w panels.

Hello house, pls i wud like your recommendations btw these two brands of hybrid inverters.
Growatt and SRNE
Any other good recommendations apart frm the two brands mentioned above will also be highly appreciated.

Also, wat brands of 5kwh 48v lithium battery would y'all recommend?
Thanks

Great advice. I do this alot in my line of business but only when the issue isnt frm the client's end. Sometimes, you jst gat to make some loss to keep the client happy and satisfied. And a satisfied/happy client means more business deals frm that client. Most times, you may even recoup your loss frm their next purchase or their next recommendation.

sharks776:
As a professional installer, you just don't look at the monetary amount/value alone. Consider the customers satisfaction also. Trust me, both you and the customer will be more happier in the future if you deliver a more satisfactory work today. That's how you get more recommendations.

Thanks for the response. I guess i will do both. But one after the other.
As for my pumping machine, the depth of my borehole is 370FT. So a 2HP pumping machine was recommended.

bassdow:
I would be brief because I'm out of time and need get back to work.

Size of cable / wire doesn't necessarily affect current draw much. using properly sized cables is better to avoid wastes of current in form of heat (the wire go dey warm/hot). In fact, my guide is - the Wire is NEVER too thick AS the Thicker, the better.

As for increasing the size of solar panels, if you could afford such, please do because again to me, Solar panels IS NEVER too much. If excess, then less stress is on the batteries during sunny hours.

As for your pumping machine, what exactly are you doing with 2HP pumping machine ? In most residential houses, 0.75HP (less stress for solar system) and 1HP (equally less stress for solar system + PUMPs faster than 0.75HP) is often enough.
I'm sorry but I'm in a hurry to reason so make I allow others add theirs.

---

in your case, would suggest you increase THICKness of the wire, and also increase size of your Solar panels.

Reason to increase Wire thickness: When you increase thickness of the wire, or can confirm that when it's working, the Wires are not Warm / Hot, then you have eliminated WASTEs and reduced chances of fire accidents.

Reason to add More Solar Panels: With more panels, you get more Voltage and/or Current, hence during sunny hours (during the day), there would be less stress/demands on your battery bank. of course during cloudy annd rainy days, you have lless worries.
Now please ensure you always use MPPT charge controller when ever thhe Size of your Solar panels is much excess relative to battery bank. This is because with PWM, the difference mostly is wasted in form of HEAT, but when paired with a good quality MPPT, those differences ain't just burnt as heat, but converted and fed into the battery. For ma eye, I see PWM as a simple resistor circuit.

Thanks. I plan to do both tho but one needs to come first due to limited funds at the moment.

Dam5reey:
Increase cable, energy saving is better than energy generation

Hello house. Pls one quick question that i need a possible solution for.
My 2HP 1.5kw rated submersible pump draws about 2.4kw when being used. Later found out that it was installed with a 1.5mm cable.
Even tho my system (5kw inverter, 3kw solar array and 12kwh LiFePO battery) can power it on sunny days, i am more concern on the battery on cloudy days. Hence my question...

1. Do i get more solar panels to cope with the current draw esp on cloudy days? OR
2. Reinstall the pump with a bigger cable like
2.5mm or 4mm cable to reduce current
draw.

Hello house. Good afternoon.

I have noticed that my 24V flooded (Matrix) batteries don not get charged up to the manufacturer's recommended 29V. The max voltage i have seen on bulk/absorption stage is 28.4V while float voltage is 27.2V instead of the recommended 27.6V on the battery manual.

Pls note that my charge controller( Fangpusun 150/60D) has user customizable settings which i have changed to the manufacturer's recommended settings but i am still not getting above 28.4v and 27.2v for absorption and float respectively.

I read on here that not charging flooded batteries up to between 28.8 to 29v ( for 24v system) will shorten the battery life hence my worries.
Pls any help with anyone with experience with my type of charge controller will be highly appreciated.

PS: My system is barely 2 months old and am not connected to the grid. So i charge only with solar.
Thanks.

Bro, abeg giv me okija number. Hope him de sell used playstation 3 and 4 consoles too?

China de smell follow dis pad nw.

Do u buy or sell PlayStation gift card?

NO!!

Location?

Hello gurus in the house.
Thanks for all the knowledge that has been shared freely in this group. I have really learned alot frm this group.
I went into this renewable energy thing January this year for my business. At the time, didnt hav any single knowledge abt solar energy.
To cut the long story short, met an installer who bought and installed d system 4 me. After learning frm dis group, i discovered dat d system was undersized for my load. The System is already failing at d moment.
So this time i want to spend wisely and get it right.
Here is my current set up.
*SOLAR ARRAY: 2.3kw,
*INVERTER: 2kva 24v sinergy inverter,
*CHARGE CONTROLLER: 60A fangpusun CC and a generic 40A CC.
*BATTERY:2*200ah 12v battery
*TOTAL PEAK LOAD: 1300W(including inverter consumption).
*AVERAGE LOAD: btw 600w to 800w
Am open to suggestions frm the gurus in the house on hw to upgrade the system.

Here are some more info to help with ur advice.
Solar array seems to perform well. Av seen up to 1400w on d fangpusun 60A CC connected to the i.6kw array. The generic CC doesnt display watts, only amps. And av seen up 20A on a gud sunny day. And its connected to a 700w solar array.
Battery is obviously failing and doesnt last long due to d amt of load on it. I dnt even use it in d evening anymore. Once its evening, i switch to my gen.

Wana buy all the upgraded items gradually b4 the end of this year starting with the inverter.
Pls suggest a gud inverter with the following features.(premium inverters are excluded oh. I neva get money reach dat level�)
*Low standby consumption.not more dan 50w
*Over load and short-circuit protection.
*Customizable charging current up to 60A
*Should be able to turnoff inverter charging
*shud hav 3 stage charging
*Shud be between 3.5kva to 5kva 48V
*Gud price point and durable.
*Will prefer non hybrid inverter bt will consider hybrid if its d only option available and d price is gud.

PS: Will my 60A fangpusun CC handle my 2.3kw array if i switch to a 48v system? It currently handles 1.6kw array.
Thanks.

cc: Niyiomolyunade
Pranil
Saipro
dapsyra
Dmerciful

And other gurus in d house.

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