₦airaland Forum

tomakint:
You are doing good pal, will patronize you soon....I hope you can supply someone in Abuja too. I appreciate the safety tips and advice you offer free of charge.

feflo:
Questions 1 & 2 are basically thesame, almost all inverter users in Nigeria did not consider the use of inverter when sizing their generator needs. What this means is that our generators are smaller than what an inverter requires to power the charging. If a generator is well sized and its capacity is big enough, there is no way it will not adequately power the charging requirements of the Inverter and even make the inverter charge better than the grid supply.
Another thing is that most generators in Nigeria just have bogus numbers written on them, a generator that has 3500 written on it may not even be up to 1.5kva in actual capacity. Inverter suppliers also contribute to this, they tell customers all sort of nonsense just to sell their product. A potential customer told me that one inverter marketer told him that a 2.5kva generator can power the charging requirements of a 7.5kva inverter.
Using generator to charge cannot damage the batteries as long as the generator is big enough to carter for the charging requirements of the Inverter.
Many Thanks

Mystical888:
Please i'm considering buying an inverter, one in the range of a 1kva generator ( i better pass my neighbour) but i have the following concerns:-

1) I heard some inverters have a challenge of not lasting long especially when charged with generator.
2) Using generators to charge damages the inverter batteries.

Is there a solution to the charging issue?
How can i possibly charge the inverter battery with generator since it's the most stable and reliable source of power supply that i have?

Mystical888:
Please i'm considering buying an inverter, one in the range of a 1kva generator ( i better pass my neighbour) but i have the following concerns:-

1) I heard some inverters have a challenge of not lasting long especially when charged with generator.
2) Using generators to charge damages the inverter batteries.

Is there a solution to the charging issue?
How can i possibly charge the inverter battery with generator since it's the most stable and reliable source of power supply that i have?

obosirow:
Feflo, I've been observing you for a while, you have a good heart. God's speed.

VULCAN:
@feflo
I have been asking what's the charging time for the 4 batteries?

Adewakeup1:
@feflo
You are the boss bro, I've connected the APC UPS as per your direction and it works. Imagine I have this ups for like 2yrs now but didn't get the connection. I'm super happy bro. Thanks

But here I come with more questions :
1. What type of DC fan will I use, is it 12v or 24v and how will I connect it.


2. How will I be charging the batteries, can the type of smart chargers you mentioned work, if yes I believe it's the 24v I will use.

Thanks.

VULCAN:
@feflo,

That's why I mentioned it.

Shouldn't a 5kva stabiliser take care of that? What matters is delivering 220V to the inverter despite Nepa low current.

So what's the estimated backup time now with 4 batteries of 200Ah?

VULCAN:
@fellow

Unfortunately, our transformer is giving us 190V. I have no idea when that will be repaired. Will such a voltage affect the system?

And are the batteries 200Ah?

Thanks

Adewakeup1:
@feflo,

Thank you for what you are doing here.
Why I asked how many blue batteries is because I'm already using 2 of the batteries with the 650va Bluegate, I connect the 2 battery cables together, red to red, black to black then to the UPS battery cable, but I didn't know of the DC fan.
Now that I've learned from you the proper conversion method, I'm thinking of connecting like 6 or 8 of the blue batteries to the 1500va APC.
What do you think Sir?

VULCAN:
@feflo

OK, so my understanding is a 3.5kva Mesh inverter of 4 batteries will cost 440k

Pls i have asked what is the make of battery and what's the backup time?

Also I was told that its good to use stabilizer with the inverter. Is this true?

Thanks

Adewakeup1:
Hello Engr Feflo,

Pls i have a bluegate 650va UPS and APC 1500va
I have the blue batteries with the following ratings:
LiFePo4 Battery
Model: LiFePo4 - 480WH/12VDC
Capacity: 480WH
Coltage: 9-14.6VDC
Charger: 5A 14.6V

Please is this type of battery suitable to be used on those converted UPS/Inverter
If yes, how many of the battery can be connected to the 650va UPS and how many of the battery can be used on the 1500va APC.
Thanks in anticipation of your quick response.

VULCAN:
@feflo

Do you mean that 2 batteries will carry my 2300W load for 5 hours? Or are you referring just to my fridges load of 820W?
It appears you have taken my fridges as my total load? Pls clarify so I can correctly estimate how many batteries are actually required..

If it turns out i need a couple more batteries what is the added cost.

I'm more comfortable with the 3.5KVa inverter.

Thanks

VULCAN:
@feflo

Thank you for your detailed answer. You are very thorough.

So its 4 batteries.

Is the Mesh pure sine wave? And what features does it have? Eg. Does it display appliance load so i can make adjustments or does it state if battery is getting low?

Please explain if 3kva takes into account surge as I have 3 fridges with a combined wattage of 820W.

Also what's the quote for 3.5KVA Mesh?
What backup time will the 4 batteries give me? Also of what make are the batteries?

I see people mentioning battery chargers. Isn't the gen supposed to charge the batteries or what am I missing?

Thanks

vitality22:
I've been following seriously. Hope this is the converted that goes for #5000? how can I get this delivered to me? am not in Lagos. Meanwhile are you on whatsapp please, I can see you are a very sincere man.

VULCAN:
@feflo

I am amazed and gladdened at your dedication to your work and also to your customers. Kudos.

Kindly clarify some issues for me.

1. I have not heard good reports about locally made inverters. Reports of catching fire and so on,

Yet I notice you provide a 1yr warranty on locally made inverters yet only 6 months on imported. Pls explain why.

2. The appliances i wish to cover are around 2300W, Of which less than half will run constantly. What capacity inverter do I need and how many batteries?

Please respond with a quote so that I can make my decision.

Thanks

martinz1:
What's d price of the 24v apc

Im2Busy2Bother:
Thanks a lot. Thoughts as much too.

Any idea it's max DC charging current?

Deluxe8000:
pls how much last for the ups inverter apc 12v and how can i get it today. i live in lagos. thanks.08158952934

temizeee:
can dis power a deep freezer of about 185 watt(+compressor surge) ?

Im2Busy2Bother:
Does Safepower have a 24V system higher than 1.5kva?
Someone said he has a 3.5kva 24v system... is there any such system? Thanks