₦airaland Forum

More 2 battery 24vdc Inverter system

Solar panel installation at Goshen Estate, Lekki, Lagos.

Outback MPPT controller

Feshizzy:
Thank you very much for the swift response sir,
I just found out the connections are in parallel,
Great discovery for me.
Bluegate though,
The other space was a backup of the backup

God Bless your good work sir!

Thanks too.

Outback MPPT Controller

Feshizzy:
Oga Feflo,
I hail you oo!

I got a bluegate bg-1550 ups,
The ups is 1.5kva and it uses 2 inbuilt 12v/7ah battery,
I want to know if it's possible to use a single 12v 100ah battery,

I tried running it on one battery and it powered up.
But I'm quite worried if it's workable,
Or do I need to make it a 2 battery system,

I've seen you converted a similar higher bluegate with 2 battery.

Thanks in advance

A two battery system could either be wired in series (to give 24v) or in parallel (to give 12v). You should have checked carefully before removing the batteries to know if its a series or a parallel connection. If you tried running it with a single 12v battery and it powered up and worked fine, then, its probably a 12v system which implies you can use one 12v 100ah battery. If it does not work fine on a single battery, then, its a 24v system and you need at least two batteries to run it.

Many thanks sir.

dreamwords:
I have the APC smart 1500 ,do you know why its difficult to on most times

Press and hold the ON button for about 5seconds and release. If everything is OK, it should come ON.

24vdc or 2 battery inverter solution

wolexy14:
pls ow much is it pls?

730k with installation and using four brand new 12v 200ah deep cycle batteries. As seen in the picture.

Many thanks for your interest.

wolexy14:
Pls which can power an ac,a TV and lyts.ilesanmioluwole14@gmail.com

5kva 48vdc.
The one in the picture powers a 1.5hp AC

Modified: It's horse power

omotech:
Thank very much i'm so grateful

Many thanks for your interest.

omotech:
Pls What is the different btw MPPT & PWM their function thanx

This is article should help.

feflo:
PWM Controllers:

A FET switch is used, under control of some algorithm, to
rapidly connect a power source, to a battery. The switch "makes" and "breaks"
many times a second, to control the charge. (Pulse Width Modulation)
When the battery is quite low, the FET switch is ON, and the
panels are connected directly to the battery, and since PC panels are a
"current source" their voltage drops (or is pulled low to the battery
voltage) and some power is lost, depending on the difference of the Vpmax
of the solar, and the present voltage of the batteries.
PV voltage - Battery voltage = Difference x Amps = Lost wattage

Note if the array was a 200W array, amps would be 11.11Aa
18V @ 11.11A = 200watts
Assuming the voltage of the battery is 12.2V, then the power loss will be

18V PV - 12.2V battery = 5.8V @ 11.11amps = 64.438W lost
So a 200W panel array will only give 135W of power to the battery



MPPT Controllers: [Maximum power point tracking]

A more sophisticated circuit is used, much like a "DC
Transformer" to dynamically convert the power source (water, wind generator
or PV panels) via an efficient DC-DC conversion process. This can also
down convert high voltage DC, to suitable charging voltage for the battery,
with very low losses, about 95% efficient. This is a good thing if you
have a remote array - you can run high voltage DC to the controller and avoid
expensive high amp wire, and incur lower losses.
The MPPT advantage vanishes when the controller switches
from the BULK charging mode, to ABSORB, and does not need the extra power
recovered from the conversion process, and falls back to PWM for ABSORB and
FLOAT stages. This can be managed in different ways for individual
systems, as many MPPT controllers have user programmable settings.
This is the simple gist of it, the actual workings are much deeper than
I can go into here.

As the system gets larger, the cost trade off between the
simple PWM controller and the expensive MPPT (with possibly shorter
lifetime with more complex innards) and PV panel & rack costs, shifts, and
it's left to each user to decide which controller is most appropriate for
their situation. The tipping point is around 600 - 1,000 watts

12v or one battery installations

Allem:
250w and also 30amps or 40amps cc

So sorry for the late reply, prices are difficult to give now as it changes almost everyday. What about giving me a call when you are ready. This ensures i give you the most current cost. You will also need to specify if the CC is MPPT or PWM.

Many Thanks.

lzar:
how much is a complete plug and ply ready to go 2kva inverter?

350k sir

Allem:
How much is are your solar panels

You will need state the wattage you need.
Many thanks

Deep cycle batteries come in different models, colours, weights and capacities

wayisshut:
Thanks so much. That translates to about 4 solar panels of about 250watts if I am not mistaken.


Can I mail you to give me a breakdown or we make our transactions here.

My email here is adebayofemio@yahoo.com and my numbers are 08165304602 or 08023662352. We can talk on any platform that is convenient to you. Many Thanks

inception101:
Do u deliver outside ur location? And how much is 60 external charger

Yes sir, i deliver anywhere within Nigeria and the 60Amps 24vdc external charger is 25k. Many thanks sir. You can reach me on 08165304602 or 08023662352

wayisshut:
Do you repair inverters and also I need to add solar panels to a 2.4kva inverter with two batteries.

How many solar panels will I use?

What will be the cost of installations including the charge contoller

I only repair inverters I install, for your solar panel requirements, I'll need to get a breakdown of your watt-hour per day. From experience, you'll need 1000watts of solar panels using an MPPT charge controller and that will cost you N650k but of course, you can start small and upgrade with time.

inverters come in different models and capacities

ktoby:
1.1kva ups
And pls how much is slim battery 12v 200ah

I have slim 12v 150ah for 50k and slim 12v 165ah for 55k. 12v 200ah block deep cycle batteries are also available for 55k

ktoby:
Pls hw much does external charger cost

What voltage and current are you interested in.

Thanks

inverter

Inverters

Inverter

feflo:
3kva 24vdc locally fabricated sinewave inverter

@130k

3kva 24vdc locally fabricated sinewave inverter

5kva 48vdc locally fabricated sinewave inverter @190k

Deluxe8000:
pls can i get a good fairly used 200ah battery for #35000?

I have good 12v 200ah deep cycle batteries and it goes for 45k

vitality22:
Thanks, but please, in the first picture, is the first cable from right to left OR from left to right looking at the picture straight as you posted it?

Remove the plug completely and face it as shown in the picture. The cable is second from left.

vitality22:
Hello Engr Femi, how do I locate the DC points of this this 650 APC ups? I have converted one and I've not installed the DC fan yet. Any help please?

Do not make the mistake of tapping the DC points of the fan from the battery. What that means is that the DC fan will work indefinitely as long as the UPS is connected to the battery. Check the attached picture, there's a white plug having four black cables. The positive leg of the fan goes to the third cable while the negative is taken from the negative battery cable.