₦airaland Forum

officialfestus:
?

Lawani street is a electronics selling area innew Benin.

officialfestus:
ask tetralogyfallot whether e get for sale?
But buck converter they for new Benin.

Shait for lawani side?

ksmart027:
9 years interesting, is it 18650 or lifepo4?

18650s o I it was made for laptop power bank over the years because of its limitations I dumped it one side then this thread came I then reconfigure it to be using bms and added charge controller and small panel to it. Only small inverter remains.

officialfestus:
you don they enjoy your setup. Nice one boss.

Yes o. Lithium na baba sha my batteries don already reach 9 years and it still get juice . Na bulk converter I dey find like this. Konga sheeping fee na 5k to Benin.

officialfestus:
I think your cells are bad.

Yes I agree too. I use pwm to charge my 3s it's slow to recharge, but I charge my phone and USB fan till dawn and lose only 0.3-0.4v. (30ah 12.6v)

luvlyoracle:
Attached are some pictures

As the other poster has said their may be shading or dust in your panels that limiting it to produce well

omotoda:
The max of 150v is for 36v and 48v set up.Please carefully read your manual.

As you can see from the manual the total voltage that can brake the controller is 190v. Even if you think it In a lay man point of view will powmr create a controller that will work well with 150v in some settings and get burnt in 105v settings when they both use the same Hardware

luvlyoracle:
I think the panels are connected properly else it wouldn’t be giving that voltage.
What do you think?

Have you tested them one by one with meter, because that 36v you are saying is for only one panel voltage, if they are connected in series, you suppose to see above 80v so find somebody to check if they are connected.

omotoda:
You have exceeded the Max VOC rating for a 24v set up for PowMr.The max VOC is 105v.You can't go beyond 2units of 280w in series for a 24v set up.You are lucky your CC hasn't fried. What brands are your panels? I am sure they are not up to the rated capacity that's why your CC hasn't burnt!

Sir the max voltage of powmr 60A CC is 150v(for the old models). The charging profile is where changes occur for 12v is max 600w for 24v 1200w for 36v 2160w and 48v 2880w. This are the supply powers to the battery.what the guy should do is to take a test first for his panels, reading the voltage and amps coming from the connected array, to know if they are connected properly.

Hello boss I have a question I know that the design is wrong but the electrician has already tell the customer that he can use 6 batteries for 48v system. Is any thing that can be done without positioning the battery close to the working unit?. N.b the customer is a family member and he is not agreeing to a change of design

dollarnaira:
Oga we arrest you oo.
This oppression is getting too much o . Joke apart, you are doing well. How you manage your time for this is amazing. Enjoy!

Hello boss I read somewhere were that you use Ethernet cables as your solar wire. I want to ask if you connected all the strings of coloured wire into one terminal or you divided them into fours for both terminal?

frebor:
This thing na maths, na the one wey pay you go do. If you need to charge a 100ah battery, assuming there's 5 hours of sunlight, you need 240W.

Quality: You'll get a tier 1 panel with high watts, unlikely with smaller panels. This will affect the maximum power the panels can deliver.

Cost: how much is 3 panels vs 1 Panel. Choose most cost effective.

Power - 3 panels
in parallel - small voltage * big current
in series - high voltage * small current

1 panel - high voltage * small current.

Then you choose the one that won't exceed the input characteristics of your charge controller.

Quick question as 30a charge controller only allows 330w for 12v battery, if someone puts a 600w solar panel array would it spoil the charge controller if the input settings of the charge controller is not exceeded??

Please does exceeding the Total watts oof charge controller does damage to it. For example 12v is(260 watt) for 20amps CC. And you want to connect 300w to it will it affect it.

Edrizz:
I would advice that u tell him to go get a 10mm cable, so that he won't push everything on ur head if the installation goes south or something awful happens in the future. Though 6mm should also suffice sha but if he wish to upgrade, then cable upgrade will be required

Okay thanks

Edrizz:
Yeah, u will have a total of 24.9amps and use10mm cable instead

I would have liked to buy 10mm but the owner already bought 6mm Cable would the loss of current be negligible

Edrizz:
Yes, it can if the 3panels are wired in series instead of parallel connection, wiring d 3panels in series will exceed d input voltage of the controller.

Okay so if I parallel them together and have 36v 27amps on 6mm cable would there still be issue

please can 300w panel of 8.3 amps of 3 pieces blow up a charge controller of 45amps75v max

officialfestus:
I'm building another pack soon, all materials for the pack have been ordered.
200AH plus.

Lithium ion r Lifepo4

erazer:
Bros, is these charger controller compatible with lithium battery? and can i use 2 250w panel on 100ah with these controller since it's mppt.

Yea I need the answer too cause what I have been seen on that controller is lead and lifepo4 only. No edit settings for Li ion

dollarnaira:
All above loads at once?

Bro pls post quote for 20ah, 40ah 50ah and 100ah arrangement with bms without cover

ksmart027:
Here you go

Thanks

ksmart027:
Funny enough, I don't get humming sound when powering my fan, I use it to power my tv, home theater, fan, phones and bulbs.

Hello bro can you send a snap of your inverter

officialfestus:
ok, I never buy am thanks.

Afa give me your WhatsApp no I stay edo too I want to ask some edo solar questions

officialfestus:
I'm getting a pwm, the exact type penuelseun posted here.

Don't buy it if you have not paid o. except you can cut the panel as penuelseun has said. You better go for mppt because it going to be slow when charging your battery due to the fact that pwm controller can not convert excess voltage to current, it will only take the 18v needed to charge the battery and expel the rest as heat.. but mppt will convert it to current and send it to the battery.

ksmart027:
Funny enough, I don't get humming sound when powering my fan, I use it to power my tv, home theater, fan, phones and bulbs.

Do you use normal standing fan or rechargeable

ewizard1:
A 3s Li-ion is at 0% at 9v (3v per cell). However, you won't find and inverter that'll go that deep before it shutdown.

I which we can see inverter that goes below 10v above 70% would still be okay

ewizard1:
A MSW inverter would ALWAYS give bad sound to inductive loads.

Ok
Na to gather body buy pure sine wave o

So my diy enthusiast wast the suppose cut off voltage of 3s li ion battery pack when connected to an inverter

ksmart027:
I use msw souer 1000w inverter, voltage cut off at 10v

How is the msw doing does it give bad sound

What are the appliances you are using it for

officialfestus:
Got a 385w Canada panel, I hope to get another jinko 400w soon.

You know you are buying mppt charge controller sha because of this size of panel ba

officialfestus:
My build powers my blue gate UPS now, thanks to you all.

Bro please explain how the usage with the ups has been. What volt does it trip off.

zenith4biz:
07036457507

Ok