₦airaland Forum

pato405:
60W solar panel is quite little, but here is what I'll recommend: A little calculation to get the answer you seek.

(Some people believe you can get 7hours sunlight in Nigeria, but to be on the safe side in calculating, I'll rather use a 5hour benchmark)


Your panel can deliver = 60watt X 5hours average sunlight hours , i.e 300watthours

However, the panels are not 100% efficient and will lose some energy just as your PWM Solar charge controller is not 100% efficient. In most cases, they both deliver just about 60% of the panel capacity.

So you can, in reality, only have 60% of 300watthours = 180watthours

So, get a battery with 180watthours.

To get the value of this battery, divide by 12volts, i.e180watthours/12volts = 15Ah

In essence, you can get a 12volts 15Ah battery.

There are no 12volts 15Ah batteries, but you can get 12volts 7.5Ah batteries (the type usually seen in UPS)

So get 2 of them and connect them in series to give you 12volts 15Ah

You solar panel can confidently charge this batteries to 100% daily. I think this can power your laptops rated 65watt for about 3 hours. So, it's really a very small power bank that can't really do much for you. They will do better with lighting up you one-room self contain with say, 3 of 5watt bulbs and a 12watt fan for about 6hours daily.

pato405:
As soon as as I saw your list, even before reading your question, I suspected you'll have problems with charging.

1. What is the rating/capacity of your battery? you did not provide this information. From my guess it isn't less than 40AH. As a rule, always make sure the wattage of your solar panel is the right one for your battery else it will take longer to charge. A fast calculation for me will be to multiply the battery power by 2.5: i.e if you are using battery power of 100AH make sure your solar power is not less than 250watt. If you are using 40AH, make sure your solar is 100watt. A more detailed calculation is:

If you check the back of your panel, you'll notice that for every 20watt of solar panel, you can get 1Amp of current. for example,
20 watt solar panel = 1Amp current
40watt solar panel = 2 Amp current
60watt solar panel = 3 Amp current
80watt solar panel = 4 Amp current
100watt solar panel = 5 Amp current etc.

In Nigeria, we are blessed with up to 7hour sunlight daily. This means that your 80watt solar panel can deliver 4Amp X 7hours = 28AmpHours also written as 28AH. Now lets suppose you use a battery rated 28AH, this will take you one single day to get it fully charged since your solar panel can deliver this in one day. Again if your battery is rated 56AH, this will take you 2 days etc.

So, in your case, to get your battery fully charged in one day, simply INCREASE THE NUMBER OF SOLAR PANELS.

I'm sure your question now is: How many more solar panels do I need to buy?

Answer= Divide your battery AH rating by 28AH, approximate it to the nearest whole number and minus 1 (since you already have 1)

e.g If you use 100AH, calculate thus: 100AH/28AH = 3.57, i.e approximate = 4solar panels -1= 3 additional solar panels (each rated 80watt)

Go to Alaba market and buy 3 more 80watt solar panels
Sit back and enjoy daily constant uninterrupted power supply.

dtruseeker:
Finally I was able to setup my own small inverter with less than 50k. Here is the summary
1. LifePo4 black battery N10,000
2. 500w car inverter N7000
3. Pmw 20A solar controller N4000
4. 80w poly solar panel N17500
5. Cable for connection N1000
Total= N39500
I use this setup to power 20inch HP monitor, gotv, small USB fan and charge my phone. The main challenge I am facing now is the solar doesn't charge the battery fast. I have to wait till 11am when the battery current reaches 11v before I can ON the setup to watch the gotv. Gurus in the house pls how can I make it charge fast?
Pato405
Ceejay80s

Chelseafan1:
#Ebchallenge
Phemmypresh
Odds : 5.95
Bet Id : 121482
Mozambique vs Zimbabwe2017-06-26 16:00:00 Over / Under : Under 2.5 1.40 Placed

Trelleborgs FF vs IF Brommapojkarna2017-06-26 18:00:00 Goals Away Over / Under : Over 0.5 1.14 Placed

Dalkurd FF vs Norrby IF2017-06-26 18:00:00 Double Chance + Over / Under : 1X + Over 1.5 1.21 Placed

Raufoss IL 2 vs Stabaek Fotball 22017-06-26 18:30:00 3 way : 2 1.23 Placed

Vikingur Reykjavik vs Vikingur Olafsvik2017-06-26 20:15:00 Over / Under : Over 1.5 1.10 Placed

Breidablik Kopavogur vs UMF Grindavik2017-06-26 21:00:00 Over / Under : Over 1.5 1.14 Placed

Dundalk FC vs Galway United FC2017-06-26 19:45:00 3 way + Over / Under : 1 + Over 1.5 1.28 Placed

Malmo FF vs AFC Eskilstuna2017-07-01 15:00:00 3 way : 1 1.20 Placed

England vs Germany2017-06-27 17:00:00 Over / Under : Over 1.5 1.30 Placed

Cc Akraym, Akraym, Troot, Ebonybet

Chelseafan1:
Abeg, no take me play, u saw what happened with the first ticket and I have changed it and posted another b4 6pm.

Why would you void the two.

OlabiyiDina:
Ogbeni troot, I know my right from left.
Check that slip very well.
Is that Tottenham or Hull City?
Tottenham won that game against Leicester by 6 goals to 1.
That slip casted for all I care.

mazizitonene:
u saw a whole king of casting spying on it and you are still asking

luwins:
just like luckyBelt. If you are in Lagos around agege,ikeja environs, i could help you with my materials(icnd1) for now. About 5-7gb of data

thooying:
pls help me with there files also. My email is issatoyin@gmail.com

kode12:
Please help me send the ccna v3 materials and any other vital links you have please. eguakun.desmond@gmail.com thanks

Luckybelt:
It may reach 15gb

Talk2bryant:
I owe you one

Luckybelt:
Get a clean external hard disk

uzoexcel:
if u got it, pls send to uzoexcel@yahoo.com

thanks

Talk2bryant:
dre help your name sake abeg, oluwadamilare.dosumu@gmail com

slimtriggaman:
Please can you send to me also
samomo411@yahoo.com
thanks

chic2pimp:
So am I. Not doing great but reasonably well. If we win our game in hand we will leapfrog Napoli who are currently third on the table. Hopefully we can then hold on to that position and claim our spot in the CL group stage.

luwins:
Sorry bro been busy but sent

papylo4real:
Thank you. God bless

papylo4real:
thanks very much
Please can I have CCNA R/S 200-125 cert guide to my email
akinrodolupaul2016@gmail.com
Thanks in advance