bigrovar:


Please take time to share where the battery is installed. Particularly the ambient temperature around the battery. So basically, when your use up electrolyte at such rate, it means you are over charging your battery - the reserve is when toping up electrolyte takes a long time (like 2 to 3 months) means battery is being under charged.

You may want to adjust down your charge voltage. Something people should understand is, for lead acid batteries, your charge voltage is actually relate to battery temperature, the higher the temperature of a battery, the lower the charge voltage should be. The reference charge voltage on the battery spec sheet is meant for a 27C temperature, so unless your battery is installed in an AC room, If you are in Nigeria you need to adjust your battery charge voltage to compensate for temperature increase above 27C. This is called temperature compensated charging and some solar chargers have this functionality and thus have a temperature sensor probe that you attach to the battery. This allows them to adjust charge voltage automatically based on battery temperature.

On the issue of voltage sag, this is a characteristics of Flooded Acid Battery. It is a fundamental flaw of the battery chemistry and it is one of the ways where an AGM does better. The voltage sag under load shouldn't worry you too much as long as it remains constant. It just means you are unable put heavy load on the battery which again is part of the flaws of Flooded Acid battery.

essegis:
Selina came through for me.
Payment was made early January and they arrived early April. 3mths shipping and clearing duration then.
Well packaged for the long journey inside standard cartons. I don keep the cartons to use as separator when installation starts, top quali those cartons.
One of the things I didn't like with the purchase is the busbar came without insulation (usually its in their adverts). Just ordered shrink wraps now to use for that, extra monies.
For now batteries are undergoing top balancing. I see this my small charger using up to 2wks to gain full charge status.
Batteries arrived at 3.28v with a few dropping to 3.27v. They have been marked out for close observation.
Let's see where this new adventure will take us to. One China thing wey people never start to complain about.

@justcallmenuel, abeg this Growatt hybrid still dey available? Can you please paste the specs here. Thanks.

earthrealm:


omo, you wan start substation ni?. thats over 50 cells, from experience, 16 cells take about 7 days 247 charging using that same charger type you are using set at 40amps.

if you want a faster charging you can hook them up in series to a decent inverter and charge at 100 amps or more with a bms of course. personally i prefer top balancing them in batches of 16.

also best to put the neg and pos terminals of the charger at opposite ends of the pack, to ensure a balanced flow of charge.

2 busbars, thats how standard busbars come--naked. only the thinner 230ah bus bars come with insulation.
the insulation on the busbars arent tht critical. you can build your packs without it.

@3.28 and 3.27 cell voltage diff...not a big deal..the are all brand new cells.

the shipper was OJ shipper or bestline....did they charge you extra for clearing

essegis:
Selina came through for me.
Payment was made early January and they arrived early April. 3mths shipping and clearing duration then.
Well packaged for the long journey inside standard cartons. I don keep the cartons to use as separator when installation starts, top quali those cartons.
One of the things I didn't like with the purchase is the busbar came without insulation (usually its in their adverts). Just ordered shrink wraps now to use for that, extra monies.
For now batteries are undergoing top balancing. I see this my small charger using up to 2wks to gain full charge status.
Batteries arrived at 3.28v with a few dropping to 3.27v. They have been marked out for close observation.
Let's see where this new adventure will take us to. One China thing wey people never start to complain about.

@justcallmenuel, abeg this Growatt hybrid still dey available? Can you please paste the specs here. Thanks.

mangolpupa:
My people, an electrician installed my ac dc ceiling fan (Qasa qcf-56c) and unfortunately wired it wrongly which burned it.

see pics.

How do I remedy the problem. What are the options?

In providing options, pls include its estimated cost if possible.

Thank you.

essegis:


Na 52 cells oo. But I want to use 48 to make 3 banks. 4 extra was bought just in case some get issue during transport, abi na so them dey advice. I sha no see anyone with issue so I don get 4 spare be that. I go use them build 12v bank for my pikin in school.

As for the charging, I only have one of those chargers and with children running around everywhere I no trust doing them in bits oo. Let me just keep all of them in one place for now. As for spreading out the poles for balanced charging I would have loved to do that but you know say those chargers don't come with long wires. Make I dey manage am as I see now my brother. Thanks.

As for shipping I no really know who do am. I went through one of my colleagues that does China a lot. They charged shipping and clearing in one package sha.

odimbannamdi:


Where did you buy it from?

If you bought it from a direct distributor, or the seller can link you to the direct distributor, he can take you to Qasa service station in Alaba international and they will fix it for you at little or no extra cost. Just rapport well with them.

Sheisenough01:
Hi Bosses,

I need your help on this. What do you advise for longer battery run time.

Two more batteries or change from Famicare 24v inverter to a Transformless pure sine wave inverter?

If two more batteries can I add 2 tubular new to my current setup though they are old? (3 months old)

My batteries do around 5-6 hours currently.

I appreciate all responses.

mangolpupa:


Thank you. I will make enquiries .

mangolpupa:
My people, an electrician installed my ac dc ceiling fan (Qasa qcf-56c) and unfortunately wired it wrongly which burned it.

see pics.

How do I remedy the problem. What are the options?

In providing options, pls include its estimated cost if possible.

Thank you.

Dam5reey:


Some electrician self, na so Dem spoil a friend's own too, I did mine myself following the manual, easy to connect.

Contact seller for replacement, hopefully it's available.

mangolpupa:


My brother, I just tire. Do you know how the information was passed to me? Baba electrician said, "generator burnt it"?? Which I objected to and queried... how will generator "burn it".

it was later that I discovered that Baba has connected 220v (nepa/gen) to DC wiring!!!

I have been saying since that the level of technical knowledge that our current technicians exhibit is worrisome. Imagine you or any of us having to buy a product, analyze it and its technology for fear (in part) that a technician you will not do justice to it.

Thanks for the advise jare... I will check that too.

Oshomo12:
There is one thing you guys are missing here, our electricians don't do DC, most of them are used to AC all their lives. If you give a DC work to any one of them without you supervising, hmmmmm, you are on a long thing. Everything nà 220v for their eyes.

Oshomo12:
There is one thing you guys are missing here, our electricians don't do DC, most of them are used to AC all their lives. If you give a DC work to any one of them without you supervising, hmmmmm, you are on a long thing. Everything nà 220v for their eyes.

Valentinooo:



You are actually right, Just bring out the manual first and study it together with him.

dammodee911:

Recently installed a 5.5kwh Smk hybrid on and off grid inverter system coupled with 4 units of 12v 200ah blue carbon lithium ion lifepo4 batteries and 8 450watts mono solar panels. Everything seems fine, but the only downside is that my 9kva firman 12990esr generator can’t seem to charge it. So far only the solar and Nepa light have been able to charge it. But with the raining season on full mode and epileptic power supply, I really need the generator option. My installer said my generator frequency isn’t enough, this is a generator that comfortably powers my 3hp inverter standing AC and 1.5hp inverter AC. What can I do pls? So far from the inverter screen, my gen produces btw 275 -285v and btw 48 - 50.5hz. Shouldn’t this be enough to charge the battery?

Xmen149:


275v-285v is dam too high for domestic use bro,.the inverter will continue rejecting it and it's doing you a favour.

Get a gen technician to tune the voltage down for you before you enter sorry mode

Xmen149:
Suggestions.!!!!!!!!!!

I think this thread should have a WhatsApp group.

Either for all or

Suppliers and technicians.

It will have countless benefits which includes easy sourcing of materials,help/assistance even in real-time, connection (client to technician, technician to technician) ,easy recommendation to name a few ...all in realtime

FEGEITOK:


Please share your extractor fan model?

I have found myself having to import this as well don't have what I want locally.

Thanks please.

Also share why you went for that particular brand and model.

Thanks again

Xmen149:
Suggestions.!!!!!!!!!!

I think this thread should have a WhatsApp group.

Either for all or

Suppliers and technicians.

It will have countless benefits which includes easy sourcing of materials,help/assistance even in real-time, connection (client to technician, technician to technician) ,easy recommendation to name a few ...all in realtime

essegis:
Selina came through for me.
Payment was made early January and they arrived early April. 3mths shipping and clearing duration then.
Well packaged for the long journey inside standard cartons. I don keep the cartons to use as separator when installation starts, top quali those cartons.
One of the things I didn't like with the purchase is the busbar came without insulation (usually its in their adverts). Just ordered shrink wraps now to use for that, extra monies.
For now batteries are undergoing top balancing. I see this my small charger using up to 2wks to gain full charge status.
Batteries arrived at 3.28v with a few dropping to 3.27v. They have been marked out for close observation.
Let's see where this new adventure will take us to. One China thing wey people never start to complain about.

@justcallmenuel, abeg this Growatt hybrid still dey available? Can you please paste the specs here. Thanks.

odimbannamdi:


Ask yourself: If there was a WhatsApp group before you knew of the thread and every conversation happened there, would you have met this thread in the first place or even got to know about the WhatsApp group in the second place?

Abeg perish the idea of WhatsApp group before moderator dash you 99 years ban. Moderators no dey like use eye read anything about WhatsApp group on Nairaland o

mangolpupa:




Baba this your correct advise crack me up.
Abi oo. Make person no come cut Seun ticket.

jonescosmos:


I stumbled upon this fan at a friend's house, I liked it and tested it to comfirm the ratings and I went for it.

Rated 220v 50w with Shutter and Grill. (I personally don't think it takes up to that because I measured the Amperage of around 2.5A max while it's operating)

It is controlled by the 15A 220v MOES Smart Temperature and Humidity switch which detects the preset temperature of the room and then starts or stops the fan. This Switch has two outputs which can control 2 fans. So I can choose that one fan kicks on at 35 degrees centigrade and if the temperature increases further to 45 degrees, the second fan should kick on also. Second fan can be set to shut off at 35 degrees and the first fan to shut off at 32 degrees. This is very impressive of the MOES switch. It has inbuilt Wi-Fi also so it's connected to my home network and controlled by the APP.

I also got some really nice models and brands from Amazon USA with more functions like speed control, etc. But those were miraculously overpriced hence my choice for this Alaba market model. Hahahaha.

The shutter opens only when it's operating thereby preventing rodents and Co from getting in. The grill behind the fan prevents stubborn intruders also.

This fan not only extracts the heat from the power room but also the dust..
I am considering adding the second fan soon to complement this one and utilize the full potentials of the Smart switch also.