NewStats: 3,264,262 , 8,183,154 topics. Date: Tuesday, 10 June 2025 at 11:21 AM y3ro

HeavenlyBang:


My inverter reading is different from the reading on my battery itself, which is in turn different from the reading on the BMS app on my phone

For example rn, inverter says 27.2v, battery display says 26.8v, and the app says 27.0v. It's a clusterfuck.

I tire, I think reading a multimeter at the battery terminals should be the most accurate.

zenith4biz:


Good evening, I need this

o70 64 56 531o
We can chat on whatsapp so we can video chat and I can test it for you to see.

omotoda:


How long jhave you been using the battery? Battery most possibly gone bad!

Just 6 months.

Kintowi:


Just 6 months.

That's strange.I have 2 units of tubular that clocked 3 years in October and it is still going very strong and it isn't even connected to solar.You need to investigate why the electrolyte dried up because even at 6 months you should just be about topping with distilled water and it would even be little.What is the brand of tubular in question? There are a lot of useless tubular batteries in the market now.Mi me is Haus Strom though and I know their products are very good.Having to top of with 10 litres of distilled water means you have practically no electrolyte left.Battery is gone.Whats the name of the battery?

RickyM:

I can sell for 80 if you’re interested.
o7o 645 653 1o
That’s my whatsapp number we can chat and discuss better.

70k boss

RickyM:
24V 1500W rated power and a surge power of 3000W
Perfectly working fine, no issues!
I’m retiring it because I’m switching to an hybrid inverter.
Any interested buyer should respond to this message, I can waybill so location won’t be an issue

I'm interested

obinna37:
I'm interested

o7o 6456 531o
Whatsapp

zenith4biz:


70k boss

Respect sir, I can do 75

Barely used Felicity charge controller 80A for sale. compatible with 12v,24v and 48v.
has adjustable battery charge settings including lithium.........#170,000

Used 2.4KVA 24v mercury MSW inverter also available..…....#120,000

All working 100% perfectly.
Location... Kaduna state. Can be way billed on request.
Serious buyers only pls.

ask4bk:

Lol, the 555kw is huge. I broke 2 s just transporting them to my rural settlement. Imagine the 650w+

I know one day, new technologies for solar s will reduce its size....

One day 555 watts Jinko will have size and weight like 40w .

Don't use hot water o!
I don't think s can be 100% clean this period until rainy seasons.
The best you can do is cleaning them to get most of the dust off em.

HeavenlyBang:
How do I clean my s?

I've tried hosing them with a some dish soap and water, then just water, but there remains a thin layer of dust/grime on them.

Not sure how much that affects my output, though, but I want them as clean as possible. Do I try using hot water?

Your pls.. I get someone that needed 80a cc

compunigeria:
Barely used Felicity charge controller 80A for sale. compatible with 12v,24v and 48v.
has adjustable battery charge settings including lithium.........#175,000

Used 2.4KVA 24v mercury MSW inverter also available..…....#120,000

All working 100% perfectly.
Location... Kaduna state. Can be way billed on request.
Serious buyers only pls.

555w Jinko solar s available, #135,000. Call/whatsapp me on 08168986461

220Ah super speed tubular battery available, #260,000. Call/whatsapp me on 08168986461

15kwh felicity lithium battery available,#2,450,000. Call/whatsapp me on 08168986461

fashrola:


I know one day, new technologies for solar s will reduce its size....

One day 555 watts Jinko will have size and weight like 40w .

Not happening anytime soon.

Current solar s are just about 20% efficient (convert around 20% of solar energy that reaches the surface of the into electricity), with the rest being effectively wasted. There are both material and physical limits to the efficiency of s, and I'd be surprised if mass-production solar technology even got to 40% efficiency in my lifetime.

Current record is under 50% and those s are built with materials that are completely untenable for consumer use.

Hybrid600:

Don't use hot water o!
I don't think s can be 100% clean this period until rainy seasons.
The best you can do is cleaning them to get most of the dust off em.

Thanks for the heads up.

Sure thing. We are almost there.

fashrola:


I know one day, new technologies for solar s will reduce its size....

One day 555 watts Jinko will have size and weight like 40w .

HeavenlyBang:


Not happening anytime soon.

Current solar s are just about 20% efficient (convert around 20% of solar energy that reaches the surface of the into electricity), with the rest being effectively wasted. There are both material and physical limits to the efficiency of s, and I'd be surprised if mass-production solar technology even got to 40% efficiency in my lifetime.

Current record is under 50% and those s are built with materials that are completely untenable for consumer use.

https://www.youtube.com/watch?v=IKL-StUwH-4&t=911s

BigDickProblems:


Africell and Twintech, 180watts each. Connected in parallel.

am using one 200w africel and am getting 5A,....so i expect the 2 should give you 11A in series......pwm controller is okay for 12/20v but it is a waste for 36/42v cos the excess voltage is waste....if your is 36/42v i will advise you to go with mppt.

i need 200w 12/20v ...08036432383

HeavenlyBang:


Not happening anytime soon.

Current solar s are just about 20% efficient (convert around 20% of solar energy that reaches the surface of the into electricity), with the rest being effectively wasted. There are both material and physical limits to the efficiency of s, and I'd be surprised if mass-production solar technology even got to 40% efficiency in my lifetime.

Current record is under 50% and those s are built with materials that are completely untenable for consumer use.

With Technology it's possible

Ty207:

am using one 200w africel and am getting 5A,....so i expect the 2 should give you 11A in series......pwm controller is okay for 12/20v but it is a waste for 36/42v cos the excess voltage is waste....if your is 36/42v i will advise you to go with mppt.

i need 200w 12/20v ...08036432383

Yes they re both 12/20V s with max current of 10. However the highest current I get from their parallel connection is around 4.5Amps-5Amps. The highest voltage is 14.8Volts.

I just did a quick test on both s separately around 4:50pm today. Here are my observations:

Africell 13.5V, 1.1Amp = 14.85Watts
Twin Tech 13.5V, 0.9Amp = 12.15Watts
Parallel connection of both 13.6V 1.6Amp = 21.76Watts


The connection should have given me 27Watts, but I’m getting 21Watts, which is very bad. What do you think of the whole thing?

compunigeria:
Barely used Felicity charge controller 80A for sale. compatible with 12v,24v and 48v.
has adjustable battery charge settings including lithium.........#175,000

Used 2.4KVA 24v mercury MSW inverter also available..…....#120,000

All working 100% perfectly.
Location... Kaduna state. Can be way billed on request.
Serious buyers only pls.

Can the Charge controller go for 125,000?

Interested and in Abuja

Thanks

Haykay2001:
Your pls..

Whatsapp 0806768412

omotoda:


That's strange.I have 2 units of tubular that clocked 3 years in October and it is still going very strong and it isn't even connected to solar.You need to investigate why the electrolyte dried up because even at 6 months you should just be about topping with distilled water and it would even be little.What is the brand of tubular in question? There are a lot of useless tubular batteries in the market now.Mi me is Haus Strom though and I know their products are very good.Having to top of with 10 litres of distilled water means you have practically no electrolyte left.Battery is gone.Whats the name of the battery?

Signal Gold

Compliant:


Can the Charge controller go for 125,000?

Interested and in Abuja

Thanks

Thanks for the interest but the price is too low Sir. Bought it at #200+.

compunigeria:


Thanks for the interest but the price is too low Sir. Bought it at #200+.

Okay lets deal 140,000 Sir

Can this protect my inverter from surge damage or lightning strike.
I also see people mention DC breaker, is it better for protection?

Kintowi:
Can this protect my inverter from surge damage or lightning strike.
I also see people mention DC breaker, is it better for protection?

No. This is just an ordinary over/under voltage delay protection

BigDickProblems:


Yes they re both 12/20V s with max current of 10. However the highest current I get from their parallel connection is around 4.5Amps-5Amps. The highest voltage is 14.8Volts.

I just did a quick test on both s separately around 4:50pm today. Here are my observations:

Africell 13.5V, 1.1Amp = 14.85Watts
Twin Tech 13.5V, 0.9Amp = 12.15Watts
Parallel connection of both 13.6V 1.6Amp = 21.76Watts


The connection should have given me 27Watts, but I’m getting 21Watts, which is very bad. What do you think of the whole thing?

orientation, air flow, and cable length are super keys to output generation. My test pv of 190w bought used few years output average of 7a on a good sunlight. Pv : 38v 10a max and surprisingly during September before this dusty days, I experienced 9.7,9.8 and 9.9a max. I was surprised to see this though that I had to use a clamp meter to confirm and it was affirmative......Keeper's series powmr 20a mppt.

Hello great people of Nairaland,
Please any suggestion of a short blade ceiling fan that blows like it’s the end of the world but doesn’t consume more than 60W max?
Standing fans prices these days are ridiculously high

Qasa

RickyM:
Hello great people of Nairaland,
Please any suggestion of a short blade ceiling fan that blows like it’s the end of the world but doesn’t consume more than 60W max?
Standing fans prices these days are ridiculously high