NewStats: 3,259,253 , 8,169,614 topics. Date: Saturday, 24 May 2025 at 01:57 PM 5q72

psucc:
Nice. Build! How much will it cost to have this setup witttth all necessary components.
Does it2,ww#ithh l$sss, have an inbuilt inverter, charge controller etc?
What and what can it power after sunset?
Strictly to be charged with solar s, what wattage can do it in South South, with lesser sunlight?

I need to start somewhere. My major need is to charge laptop forr my work during daytime while the family powers tv(32", Decoder and 6 units of 10w bulbs. Fans and others can wait.

Add up all your load in watts

Then divide 1300wh (1.3kwh) with it to get the backup hours.

Eg if your total load is like Tv = 55w , decoder = 20w, bulbs 60w and fans (I don't know type so I'd assume 60w for one)

Total load = 55+20+60+60 = 195w

Total time of backup = 1300/ 195 = 6.6 hours. So we will be looking at approximately 6 hours or thereabouts with such load.

mctfopt:


Add up all your load in watts

Then divide 1300wh (1.3kwh) with it to get the backup hours.

Eg if your total load is like Tv = 55w , decoder = 20w, bulbs 60w and fans (I don't know type so I'd assume 60w for one)

Total load = 55+20+60+60 = 195w

Total time of backup = 1300/ 195 = 6.6 hours. So we will be looking at approximately 6 hours or thereabouts with such load.

Multiply by 0.8 (80%} = 5.28hrs

dollarnaira:


Multiply by 0.8 (80%} = 5.28hrs

wow

Thanks for the response. You've only responded to the 2nd part though. Please do same to the first para and state the cost of every every

6hours is enough for all man to go to sleep jare.

mctfopt:


Add up all your load in watts

Then divide 1300wh (1.3kwh) with it to get the backup hours.

Eg if your total load is like Tv = 55w , decoder = 20w, bulbs 60w and fans (I don't know type so I'd assume 60w for one)

Total load = 55+20+60+60 = 195w

Total time of backup = 1300/ 195 = 6.6 hours. So we will be looking at approximately 6 hours or thereabouts with such load.

dollarnaira:


Multiply by 0.8 (80%} = 5.28hrs

Did you see the APPROXIMATE 6 hours even when I got 6.6 hours in the quote?!?

mctfopt:


Did you see the APPROXIMATE 6 hours even when I got 6.6 hours in the quote?!?

Nothing much bro just an added info. Not degrading your calculation.

Dam5reey1:
Don't Buy Lead acid in 2025 abeg..
We just replaced a Lead acid with this

It only managed 52,369AH, approximately 261 Cycles less than 2 years e don degrade to 10% capacity

Now we have installed 3.6kwh with 1.5kva Hybrid

This Haisic doesn't have a display at all fa? How would you check cell voltages on it?

The only con, they should have substituted that for a smart BMS.

HeavenlyBang:


This Haisic doesn't have a display at all fa? How would you check cell voltages on it?

Mrreed:
The only con, they should have substituted that for a smart BMS.

Yeah, that makes it a no-go for me unfortunately.

Dam5reey1:


But, the Batteries was already opened, warranty seal already broken.
Opening it is just for him to be sure and have his evidence as well.

As long as he has proof that he wasn't the one who broke the seal then he is good to go....

HeavenlyBang:


Yeah, that makes it a no-go for me unfortunately.

Same with me. Especially when someone can do same capacity with smart bms and Grade A CELLS for 840K

omotoda:


Same with me. Especially when someone can do same capacity with smart bms and Grade A CELLS for 840K

24v 280aH? Who be that abeg.

HeavenlyBang:


24v 280aH? Who be that abeg.

@Mrreed

omotoda:


@Mrreed

Ok.

HeavenlyBang:


This Haisic doesn't have a display at all fa? How would you check cell voltages on it?

Checking cells voltage is overrated, for me sha.

Dam5reey1:


Checking cells voltage is overrated, for me sha.

Good for troubleshooting.

So the battery has no screen or communications? How is SoC even checked?

Dam5reey1:


Checking cells voltage is overrated, for me sha.

Asides cell voltage , it is just helpful in knowing what is going on in the pack.You know your charge currrent, voltage, etc. I think every it just makes life easy sha.

HeavenlyBang:


Good for troubleshooting.

So the battery has no screen or communications? How is SoC even checked?

What of those on such for close to 5 years now ? Though monitoring through Bluetooth is a good thing but life no hard like that. What will tubular s now say using more than 4?

fuckboys:
Same setup as below. Total installation Cost of about 1.3m

Did you connect all 4 s again, and what configuration ?

maklelemakukula:

Did you connect all 4 s again, and what configuration ?

yes connected all 4 s in series

dollarnaira:


Nothing much bro just an added info. Not degrading your calculation.

No wahala.

fuckboys:
yes connected all 4 s in series

I still do not understand the reason for this max VOc for 12v and 24v on this powmr cc .My understanding is that once you exceed that max VOc the controller will get bad somehow but with 4 420w s in series on a 12v set up that is meant to have max voc of about 80v, its still confusing. Do you ever exceed 800wats ever. Make e nor be say the other s are just wasting and the charge controller is limiting pv watts input to the maximum allowable for the 12v system (720w)

omotoda:


Asides cell voltage , it is just helpful in knowing what is going on in the pack.You know your charge currrent, voltage, etc. I think every it just makes life easy sha.

Cant last time I checked cell parameters.
95% of don't need that level of information

Its like paying attention to your heartbeat.

HeavenlyBang:


Good for troubleshooting.

So the battery has no screen or communications? How is SoC even checked?

That is why the pack is Cheap.
If your battery is Full capacity you will understand the usage pattern in no time.

Only few of us even understand what cell, SOC mean. Even the percentage on our phones not sure we pay that much attention

Mrreed:
The only con, they should have substituted that for a smart BMS.

Can the bms be swapped for a smart one? Is it possible?

HeavenlyBang:


Ok.

Chief. Update on the li-ion battery for rechargeable fan.

The battery arrived, 11.1v, connected directly and charging with normal AC charger. Everything is working fine and the speed is very Ok at speed 1. Lasts about 5hrs:30 minutes. The charging indicator works fine and when battery is full it stops charging and shows green.

I doubt this can work for you as yours is 15v by default right? Mine is 12v.

Dam5reey1:


That is why the pack is Cheap.
If your battery is Full capacity you will understand the usage pattern in no time.

Only few of us even understand what cell, SOC mean. Even the percentage on our phones not sure we pay that much attention

Is it realy that cheap?Considering it is Grade B cells and one can get equivalent capacity of Grade A cell at almost same price.

fuckboys:
yes connected all 4 s in series

Okay, you changed inverter right ? Bread ??

omotoda:


I still do not understand the reason for this max VOc for 12v and 24v on this powmr cc .My understanding is that once you exceed that max VOc the controller will get bad somehow but with 4 420w s in series on a 12v set up that is meant to have max voc of about 80v, its still confusing. Do you ever exceed 800wats ever. Make e nor be say the other s are just wasting and the charge controller is limiting pv watts input to the maximum allowable for the 12v system (720w)

the max voc of 80v on the powmr cc is for 12v system, it s 24 and 48v systems also which also has different max voc. Please refer to your manual for this.

I switched to hybrid inverter because of exactly this limitation on the powmr cc, it couldn't handle my 4 s on 12v system.

dollarnaira:


What those on such for close to 5 years now ? Though monitoring through Bluetooth is a good thing. But life no hard like that. What will tubular s now say using more than 4?

But at least make person fit dey see wetin dey go on. It's one of the big advantages LFP is supposed to have over tubular after all.

Dam5reey1:


That is why the pack is Cheap.
If your battery is Full capacity you will understand the usage pattern in no time.

Only few of us even understand what cell, SOC mean. Even the percentage on our phones not sure we pay that much attention

Valid but then a smart BMS is max an extra 40-50k in price. Good trade-off for most people surely?
Las las it's a good buy for those who don't care much about monitoring ultimately. They can just rely on inverter voltage reading for SOC.

CuteMaro:

Chief. Update on the li-ion battery for rechargeable fan.

The battery arrived, 11.1v, connected directly and charging with normal AC charger. Everything is working fine and the speed is very Ok at speed 1. Lasts about 5:30 minutes. The charging indicator works fine and when battery is full it stops charging and shows green.

I doubt this can work for you as yours is 15v by default right? Mine is 12v.

Oh nice.

Please send a picture of the setup.

Dam5reey1:


Cant last time I checked cell parameters.
95% of don't need that level of information

Its like paying attention to your heartbeat.

Maybe for those who extremely oversized their system, so nothing to be worried about..

But if you on a moderate one with family who care less about energy conservation , Na to dey check am steady.... Especially for those with inverter without battery voltage indication..