₦airaland Forum

africanman85:
Yet to hear from u bro

oga, you need 240 laptop battery which I just calculate above.

Ask any other questions

you can purchase them near you. alieexpress is for those who cant get it cheaper where they are

some of these charge controllers are on Alieexpress

cheapest one i used when i started

link click here

moderate size controller

link click here

epever very nice one
link click here

so remember that
p equal Current X volts

current equals power/voltage

1500 / 24 equals
62.5 amps

we need 24v 62.5 amp battery pack

if 1 battery is 1.6a.

62.5/ 1.6 equals 40 pieces of battery in PARALLEL at 24volts


IF 1 battery is 4.2volts.

how many battery shall we add to give 12volts ?
that's 3 battery in series.



how many battery we shall add to give 24 volts? that's 6 battery pairs.

my friend, you need 240 battery pieces.

40 X 6 TO GIVE 24 VOLTS 1500 watts

therefore
let us get the no of battery amp needed.


power we need 1500watts
battery voltage needed is 12v or 24v. but lets use 24v. i have my reason.

battery power 1500watts
battery voltage 24volts

battery current is unknown ?

So we are building a 1500 watts power bank for him

we need to know how many of these battery he need.

fairly used 18650 carries 4.v 1.6a

i mean for 1 of laptop battery.

alright we shall help our brother build his laptop powerbank virtually

building a laptop powerbank steps.

1. find out how long to power the laptop.

he said 15 hours

calculate how many watts it is.

1 laptop power is 66 watts for one hour.

energy consumed in 15 hours is

P equals 15 x 66 which is 990 watts.

approx 1000 watts.

now you cant use up all the battery
we need to add 30% as loss during charging or cable connections or heat.

so P is 1000watts + 300 watts
P is 1300watts.

we should make it 1500watts. to be balanced.

africanman85:
like how many pieces is enough to power laptop and phone for 15 hours?

let's do the maths , I'm coming

africanman85:
Pls how much do u get d battery pack? I have a blue Inec Powerbank connected to ups and it trips off when I connect my laptop to the ups.

if you are talking about the laptop battery, i buy them in pieces. #200 naira per piece

mccben4:
Please check your mail

alright replied

But here, I will do the laptop battery bank so that you will see.

Step by step.

zenith4biz:
Lets see your set up

I'm planning on upgrading it.

Waiting for the last item ordered to arrive

Sapiosexuality:
Is this thread dead?

you pay for experience and mentorship.

we are all busy.

but here is how to start.

get topics

write the book

do the cover for book

edit all
upload it to amazon

repeat the process.

can you do all these?
you can message me - at - metaboltjobs@gmail.com

It's been 2 days rainfall. Just enjoying the solar without noise.

Wow!

Hunkyimage:
Please who is your 18650 battery cells plug?

Does he also have the 32700 LiFePO4 spec.(shown below) ?

those battery are good. I go with watts popular also.

18650 is popular and you can buy them anywhere.

But this 32700, I don't have a seller.

Use jumia or other ordering sites to find sellers for it.

Fastlinkpro:
In what way using foreign address to creat kdp account help ?

Google is your friend

Rossoneri01:
In creating a kdp account is location really a factor, I initially planned on creating a US account compared to a Nigerian account. Does this really matter?

yes it does

Good morning

Let me know if it's clear

So our car battery of 12v 100a which is 1200 watts can only be used of half of it's power.

From our initial calculation,

We need 400 watts to run laptop for six hours.

So if we have 600 watts of battery available, to that should definitely do.

Remember that solar panels are rated in watts too.


My personal rule is multiple the watts of your panel by 3.

For example, 100 watts panel will supply 300 watts power in sunlight.


That's for 1 hour of sunlight.

So an 100watts panel can charge your 12v 100a battery for 3 hours.

So if you build or buy a 600 watts battery.

If it's a deep cycle battery, only 300 watts is available.
WHY?

For the battery to last.

This is known as depth of discharge.

Now to calculate how many panels you need,

Start from your proposed battery capacity.

To power a laptop for 6 hours

Look at the laptop charger. Usually 19v 3.5a

Power = V x I
So 19× 3.5 = 66.5 watts. This is just for one hour.

So for 6 hours we have

66.5 x6 = 399 watts.


Now a 12v battery is sometimes 12v 100a

Power from battery is 12×100 = 1200watts.

Fastlinkpro:
I notice something LOOK INSIDE

When you publish both Kindle and Paperbck, Look inside is not an issue, it shows up in no time

But

Publish just a paperback, like coloring book or notebook, omo Only God Knows when Look Inside will show up

my question, Can someone buy a book whiteout seen what the interior looks like?

yes

Panels are mostly connected in series.

So that we use a normal wire.

Try to add up in series so that we won't need fat wires.

Solar panels are rated by volts and watts.

E.g 18v 80 watts
And so on.

Now Series connection is address adding voltage together. 12v + 12v = 24volts.


Parallel connection is 12v 5amp + 12v 5amp = 12v 10amp.


This mean that in series connection we add the voltage . But in parallel we I ncrease the current.

Next we shall make on to the connection

Panels are graded in 10watts , 20 watts, up to 280 watts.


For a start, get one panel. Atleast. We should be charging our battery from the sun.

That's why we call it solar system.

Start with a 100 watts panel

So let's talk about panels.

Solar panels is graded in watts.

It's. Usually have vmp= maximum voltage

And Imp = current.

Remember that power equals voltage x current.

ask any questions