₦airaland Forum

Jove2012:
good evening great minds, please I will appreciate if answers can be gotten for the following questions.


1). Those 1.5kva UPS has the same capacity with 1.5kva inverter?

2). Can 1.5kva UPS carry energy saving freezer (200w) ?

3). How can I fix bad solar battery (I picked an old solar battery from someone. He stopped using it about 10 years ago cause he relocated to a place with stable electricity and didn't see the need to use it again. I guess the battery got spoilt in the process of abandonment) ?

4). Can a solar panel of 40w change a solar battery of 100ah successful without using solar charge controller?

Thanks for your anticipated positive response

1. Theoretically yes but it then depends on the efficiency of the inverter

2. Sure it should

3. Forgot it, such a battery is dead

4. That panel size of too small, get 250w and you need a charge controller to charge the battery, please don't connect panels directly to battery it's not safe

Jove2012:
Good evening all, I will appreciate if I can get answers to the following:

1). Those 1.5kva UPS has the same capacity with 1.5kva inverter?

2). Can 1.5kva UPS carry energy saving freezer (200w) ?

3). How can I fix bad solar battery (I picked an old solar battery from someone. He stopped using it about 10 years ago cause he relocated to a place with stable electricity and didn't see the need to use it again. I guess the battery got spoilt in the process of abandonment) ?

4). Can a solar panel of 40w change a solar battery of 100ah successful without using solar charge controller?

Thanks for your anticipated positive response

1) Yes, but the UPS is built for short backup, hence may lack some cooling features that inverter has on default.

2) Yes, again.

3) If you have the time and resources why not give it a try. First get a meter and check the voltage left. Then try trickle charging it, that is charge it with little charge current. What have you got to lose? Nothing. Worse case scenario battery is dead, and you can still sell the dead battery for some cool cash

4) Yes, but the issue will be the duration it will take, hence if a 40w. If you assume 6 hours of sunshine, the total energy produced is 240wh. Assuming your battery is discharged by 50% you will need to charge back 50ah in 6 hours (this is 600wh). That means it will take your solar panel of 40w about 15hours or roughly three days to charge the 100ah battery. But using a 250w panel, as suggested by ojesky, will significantly lower the time it will take to recharge that battery.

FYI: It is not recommended to charge any battery with solar without using a charge controller. Check the name again CHARGE CONTROLLER, it controls the charging of your battery, you don't want your expensive battery to be either overcharged or undercharged, hence the reason it is important to get one of those. If you buy a good one, you won't be buying it again in years, with all things being equal.

Thanks @mctfopt & @ojeysky

Thanks @mctfopt & @ojeysky
which solar charge controller can you recommend?

Thanks @mctfopt & @ojeysky
which solar charge controller can you recommend?

Good morning to y’all, I’m glad to announce to y’all that we’re now open, and that we open only on Mondays, Wednesdays and Fridays... You can start bringing your orders coming in, but please there’s a little increase in price due to the situation of things in the country...Thank you, and y’all continue to stay safe!

MANUEL SOLAR ENERGY ENTERPRISES☀️

Jove2012:
Thanks @mctfopt & @ojeysky

which solar charge controller can you recommend?

Based on past performance, I'll recommend Makeskyblue mppt SCC

jmaine:
I guess the Poly version will still give same accolades as well?

Yes sir... Whether Mono or Poly, Canadian panel performs optimally..

Cheers

mcTrinity:
Yes sir... Whether Mono or Poly, Canadian panel performs optimally..

Cheers

Thanks bro.. I deeply appreciate your response..

I will like to buy some items from him.... I would like the house feedback on this seller justcallmenuel

@mctfopt @ojeysky @jove2012

No, a 1.5kva UPS isn't same as Inverter.

My previously used APC UPS 1.5Kva has capacity of 980W while my present 1.5kva Inverter has 1200w.

ewizard1:
@mctfopt @ojeysky @jove2012

No, a 1.5kva UPS isn't same as Inverter.

My previously used APC UPS 1.5Kva has capacity of 980W while my present 1.5kva Inverter has 1200w.

Just as you can have a 980w inverter

ojeysky:
Just as you can have a 980w inverter

But the question was if "1.5kva UPS has the same capacity as a 1.5kva Inverter"

980w isn't same as 1200w

UPS has lower pf than inverters.

ewizard1:
But the question was if "1.5kva UPS has the same capacity as a 1.5kva Inverter"

980w isn't same as 1200w

UPS has lower pf than inverters.

i have been using this UPS for over 2yrs now and it is very rugged.it consumes around 30W(with inbuilt fan on) on idle mode. pls do u know what the efficiency is like? on heavy load

Valto:
i have been using this UPS for over 2yrs now and it is very rugged.it consumes around 30W(with inbuilt fan on) on idle mode. pls do u know what the efficiency is like? on heavy load

I didn't check before I sold it out. It's truly very rugged but drains battery faster and wouldn't charge my battery past 27.2v. More reason I had to sell it off and got an Inverter.

mctfopt:
1) Yes, but the UPS is built for short backup, hence may lack some cooling features that inverter has on default.
.

Hello @Mctfopt
I tried sending you a pm but i think i can ask here,

This is my first time trying to buy inverter,.

what advise would you give a novice to avoid future regret, Budget is 300k for everything.

Got some options on jumia but it got me confused more .

Appliances are freezer and Tv with a 95kwh.

Thanks in Advance.

ewizard1:
But the question was if "1.5kva UPS has the same capacity as a 1.5kva Inverter"

980w isn't same as 1200w

UPS has lower pf than inverters.

Well if the UPS is truly rated 1.5kva then it's the same with a truly rated 1.5kva inverter. My inverter is rated 3kva but it's true rating is 2.4kva

ojeysky:
Well if the UPS is truly rated 1.5kva then it's the same with a truly rated 1.5kva inverter. My inverter is rated 3kva but it's true rating is 2.4kva

Why are you going back again oga Ojesky

If your 3kva "INVERTER" is truly 2.4kva as you said, then what is the maximum capacity (Load) the inverter can power?

If I am tossed your INVERTER labelled "3KVA", without any other info, I'll simple multiply the 3 by 0.8(pf) which would sum to (2.4kw) which is the max load your inverter can do.

Then with few encounters I have with several UPS, the UPS here is the regular office unit used to protect Computers from tripping in the case of ligth outs. The Power factor is about 0.65 which means the max capability of load would be lower than an Inverter. They are always stated on every UPS.

*** I have attached a Screenshot from APC 1500VA page. They have a space to calculate the runtime depending on the load, see I typed in 1000w and there was text saying, "... max 900w" but it's a 1500va/1.5kva UPS.

monopolistic:
Hello @Mctfopt
I tried sending you a pm but i think i can ask here,

This is my first time trying to buy inverter,.

what advise would you give a novice to avoid future regret, Budget is 300k for everything.

Got some options on jumia but it got me confused more .

Appliances are freezer and Tv with a 95kwh.

Thanks in Advance.

Not really good in giving market prices of goods especially after the lockdown as there has been series of upward review of prices after. Reasons are increased shipping costs, rise in price of dollar (dollar was at 390 and below, today it ranges between 420 to 460), etc.

But I think you'll require to buy an 1.5kva to 2kva pure sinewave inverters of any of the following: Microtek, Luminous, Sukam, Genus, Mopower, etc. I guess you'll need also two 12v 200ah deep cycle batteries. Is the 95kwh energy you stated the energy consumption per day, month or year? Or you mean 95w? Anyways I always advise someone venturing into renewable energy to forget powering loads such as fridges and freezers (and concentrate on low loads such as lightning, low energy fans, low energy TV's, etc) unless the public supply is really good or that the person has the next best thing- solar panels incorporated.

ewizard1:


Why are you going back again oga Ojesky

If your 3kva "INVERTER" is truly 2.4kva as you said, then what is the maximum capacity (Load) the inverter can power?

If I am tossed your INVERTER labelled "3KVA", without any other info, I'll simple multiply the 3 by 0.8(pf) which would sum to (2.4kw) which is the max load your inverter can do.

Then with few encounters I have with several UPS, the UPS here is the regular office unit used to protect Computers from tripping in the case of ligth outs. The Power factor is about 0.65 which means the max capability of load would be lower than an Inverter. They are always stated on every UPS.

Actually I made a typo in my previous post, maximum load is 2.4kw not 2.4kva[1] that's why I said "true rating", I have another 3kva inverter and the true rating is 3kw (my guess is that the inverter is probably 3.5kva hence pf has been taken care of). However both of them Felicity and MPP are advertised as 3kva.

So you see why I say, just stating a rating without relating it to specific manufacturer spec could have a difference.

Cheers
1. PW=PVA X 0.8

ojeysky:
Actually I made a typo in my previous post, maximum load is 2.4kw not 2.4kva[1] that's why I said "true rating", I have another 3kva inverter and the true rating is 3kw (my guess is that the inverter is probably 3.5kva hence pf has been taken care of). However both of them Felicity and MPP are advertised as 3kva.

So you see why I say, just stating a rating without relating it to specific manufacturer spec could have a difference.

Cheers
1. PW=PVA X 0.8

Okay, thought exactly about the 2.4kva. To your last paragraph when we talk inverter, yes you're rigth. But it's a whole difference from UPS.

Malevonent:
Nice display. Could you elaborate on how you hooked it up. I have 2 of such lying around.

@All, the screen of my 5yr old 4kva mustpower inverter just went blank.inverter works ok though.
Any tips on how to repair this?

So just an update.
Decided to open up the must power, and observed that the ribbon tape feeding the display was gradually pulling free. Pushed it back firmly and powered the inverter.
I am glad to announce that my inverter screen is back.
Working ok now. Always good to tey basic diy before trying the repair shop

2nd question.
Noticed the remote port connection on the mustpower.is anybody using his.where did you buy the remote module??

Malevonent:
So just an update.
Decided to open up the must power, and observed that the ribbon tape feeding the display was gradually pulling free. Pushed it back firmly and powered the inverter.
I am glad to announce that my inverter screen is back.
Working ok now. Always good to tey basic diy before trying the repair shop

2nd question.
Noticed the remote port connection on the mustpower.is anybody using his.where did you buy the remote module??

Isn't the mustpower an axpert variant? If yes then the normal rs 232 to usb should work.

ojeysky:
Actually I made a typo in my previous post, maximum load is 2.4kw not 2.4kva[1] that's why I said "true rating", I have another 3kva inverter and the true rating is 3kw (my guess is that the inverter is probably 3.5kva hence pf has been taken care of). However both of them Felicity and MPP are advertised as 3kva.

So you see why I say, just stating a rating without relating it to specific manufacturer spec could have a difference.

Cheers
1. PW=PVA X 0.8

Axpert inverter has pf0.8 and pf1 of same parameters {ie charging current and mppt} is same only the pf is different. Unfortunately the ones in Nigeria mainly is pf0.8

ojeysky:
Isn't the mustpower an axpert variant? If yes then the normal rs 232 to usb should work.

Nope its not an axpert clone.
See a pic of the port.
Any idea of extra data or log capabilities i should expect with yhe remote unit?

mctfopt:
Not really good in giving market prices of goods especially after the lockdown as there has been series of upward review of prices after. Reasons are increased shipping costs, rise in price of dollar (dollar was at 390 and below, today it ranges between 420 to 460), etc.

But I think you'll require to buy an 1.5kva to 2kva pure sinewave inverters of any of the following: Microtek, Luminous, Sukam, Genus, Mopower, etc. I guess you'll need also two 12v 200ah deep cycle batteries. Is the 95kwh energy you stated the energy consumption per day, month or year? Or you mean 95w? Anyways I always advise someone venturing into renewable energy to forget powering loads such as fridges and freezers (and concentrate on low loads such as lightning, low energy fans, low energy TV's, etc) unless the public supply is really good or that the person has the next best thing- solar panels incorporated.

I get your point.you mention 12v 200ah battery and each alone cost 150k naira both cost 300k naira..you see why am confused.

Which of this inverter you think is better and will preserve battery life.

Can you kindly list all what i might need so i can buy them on jumia.
Thanks

Please, House, I want to ask where you guys order for your solar DIY materials cheap?

olaolu11:
My inverter is 900v luminous ecovolt
Battery is 200ah mercury
Charge controller is 60a pwm
Solar panel is four 150 watts chinko panels(total =600)

Haven said that. Let me give a little background to help you form opinion. This month makes it one year ive been completely off grid due to faulty transformer in my area. It also coincides with when I got the new battery. I have used generator a few times to power fridge and also for washing machine. Other than those periods, I have solely relied on solar to charge my battery.
I used gen for fridge because inverter capacity cannot carry my fridge, and I used it for washing machine until I realised that Ivan use the machine at midday when sun is full( this I have been doing for months now.
My load is basically 32 inch flat screen TV and dstv decoder. 5 watts bulbs in rooms when I need them. Once in a while blender, and DC standing fans of 40 watts each(has its own rechargeable battery). And phones charging. I have always have 24/7 light with this setup except on few occasions when the inverter trips off. Whenever I am to use washing machine, I ensure we don't watch TV that day until late afternoon when we are done with washing or wait till the next day, else TV is usually on from 3:00pm till 10:00pm.
And in this lockdown TV is on from 8:00am till about 10:00pm daily. Even yesterday we washed and still watched TV from 2:00pm till 9:00pm.
That basically has been my schedule for one year now. I plan on adding two more panels though.

Hi boss, can I please connect with you off here, I have some questions to ask, your number pls

I have used him. I had a good experience with him.

terrymason:
I will like to buy some items from him.... I would like the house feedback on this seller justcallmenuel

Anyone having a properly functioning used Fronius Primo 3kvA or 5kVA for sale should reach out to me on O8O 239O 23O5 (call/whatsapp)

Bought from MANUEL SOLAR ENERGY ENTERPRISES, and installed yesterday by one of my experienced engineer... Big thanks to Mr Patrick for the patronage, God bless you sir!


That’s 2 pcs of 200AH, 24v Felicity lithium battery and a 5.5kva, 24v Famicare inverter..

Go Solar...Let the sun pay your bills!!!

mahkanjuh:
Please, House, I want to ask where you guys order for your solar DIY materials cheap?

Contact cellmenuel. His prices are reasonable.