litaninja:
Wetin happen? Kilode gan

I think it's too much as well, make all of us wey dey advertise take ham easy o and I have included myself before someone remind me of that

Good afternoon my ogas in the house. like to know if charging the battery with phcn or solar panels have negative impact on the battery?which one have bad impact on battery? which one preserve the battery most?

ojeysky:


Oga that inverter will soon packup because the charger is too small for that capacity. If his demand is within the 1.2kva requirement just get an external charger as an additional. Personally I don't think it's a good idea to get that much capacity for a 12v system but he has it anyway so that's the workaround

Nor be me go break hin heart.He got the batteries on awoof.May be I will advise him to incorporate panel solar charging.My calculation shows he needs like minimum 100amps to charge the 1000ah batteries.That itself is a challenge because of limitation in PVinput of 12v charge controller,mostly 720 watts.External charger is it then

thisisggood:
I had to create another name to send this as I don't know what happened to my profile. I can't send messages on this thread but can on other threads.

A friend uses 6 units of 2v 1000ah battery he got from another friend( telecoms people) with his 1.2kva mercury inverter with 20amp charging current.He has utility for 12hours daily average but complains his battery's rarely gets fully charged.He doesn't have issues with performance though but is just worried thinking the partial state of charge can kill the batteries. Any advice on this? Should he incorporate external charging?

Thats huge battery bank. Ok
It’s true you may put your battery at risk, since it never charges full, please get an external charger of about 12v, 60A this will help.

Regards

rajo4real:
Honest advice needed pls...
I have a client that wants to replace 8 pcs of 200AH GEL batteries @ 48V.

Is it advisable to switch to lithium?
What capacity of lithium is ideal?
Which other brand is available in market apart from Felicity that will not require breaking the bank.

Thank you.

Help...

rajo4real:
Honest advice needed pls...
I have a client that wants to replace 8 pcs of 200AH GEL batteries @ 48V.

Is it advisable to switch to lithium?
What capacity of lithium is ideal?
Which other brand is available in market apart from Felicity that will not require breaking the bank.

Thank you.

I will always advice lithium a 250 to 300AH 48v is much more better equivalent. I know folks that sell coupled cells if you are interested, it's 500k for 100AH 48v those are actually capacity not the over declared Felicity

rajo4real:


Help...

What is your client's budget? Why is he replacing the GEL batteries? Is it as a result of performance? What kind of inverter is he using? Can the inverter handle LiFePO4 charging capability?Most importantly, what is his energy requirement because 8 units of 200ah battery on a 48volts system is 19200 watts.Even at 50%DOD on the GEL batteries that's still 9600watts .

According to my knowledge
Charging large amount of batteries of higher amp will not cause any harm to the charger.
Charging 1000amp with a 30amp for example will only take a longer period of time to full charge if it sees regular supply of power supply without connecting load to it. Most connect load to it after few hours of charging, thereby depleting the already stored current.

Am current Charging 600amp with two chargers. But d client mostly discharge dem few hours later.

To get best results, charge without depletion
Wait till it full charges.

Like was said earlier the inverters is grossly inadequate to charge those batteries, and external charger added to the inverter will reduce the charging time because utility light is limited.

dollarnaira:
According to my knowledge
Charging large amount of batteries of higher amp will not cause any harm to the charger.
Charging 1000amp with a 30amp for example will only take a longer period of time to full charge if it sees regular supply of power supply without connecting load to it. Most connect load to it after few hours of charging, thereby depleting the already stored current.

Am current Charging 600amp with two chargers. But d client mostly discharge dem few hours later.

To get best results, charge without depletion
Wait till it full charges.

When the batteries are that big the inverter will output all the amps at a regular basis, just to make the batteries happy. But the inverter cannot make the batteries happy. Inverters do pack up if overworked. I have lost similar batteries in such situations.. I started solar journey with 2v500amps 6 units and a 1.2kva inverter that alone will never charge the batteries full. Even the installer brought a small external charger lost those batteries within 2 years painful... the charger first pack up, then inverter.

samnaija:

When the batteries are that big the inverter will output all the amps at a regular basis, just to make the batteries happy. But the inverter cannot make the batteries happy. Inverters do pack up if overworked. I have lost similar batteries in such situations.. I started solar journey with 2v500amps 6 units and a 1.2kva inverter that alone will never charge the batteries full. Even the installer brought a small external charger lost those batteries within 2 years painful... the charger first pack up, then inverter.

Were u depleting after each charge?

dollarnaira:


Were u depleting after each charge?

The nepa comes for 2 hrs charges,of course I will use the batteries when no light. U want me to stay in darkness because I dey charge batteries .
He should get a very good or big amp external charger to assist his inverter or say bye bye in a short while.

If by error i laid my hand on a 1000amp batteries I wont use it as a regular power supply for my inverter.It will be plugged in for weeks to full charge without any form of depletion.

I will make use of another set up for normal use.

The 1000amp will only serve as massive backup.

Simple!!!

dollarnaira:
If by error i laid my hand on a 1000amp batteries I wont use it as a regular power supply for my inverter.It will be plugged in for weeks to full charge without any form of depletion.

I will make use of another set up for normal use.

The 1000amp will only serve as massive backup.

Simple!!!

What you stated is not what the man has now, I also did not have the experience then. .what I always advice people always have a minimum of 2 battery banks. Whether the banks is massive or not. It pays to invest in multiple banks.

Good afternoon. please anyone with a fairly used but very good and okay pure sine wave inverter(12v 1kv-1.7kva) for sale within minimum of 15k- 40k maximum should quote me. Thanks in anticipation

dollarnaira:
If by error i laid my hand on a 1000amp batteries I wont use it as a regular power supply for my inverter.It will be plugged in for weeks to full charge without any form of depletion.

I will make use of another set up for normal use.

The 1000amp will only serve as massive backup.

Simple!!!

That would be waste of good AH rating.Better to connect it to solar charging then. 1000ah is too massive to be left to occasional use.

litaninja:
Wetin happen? Kilode gan

No be my fault boss, Na so me sef see am o

Ma binu jor

justcallmenuel:

No be my fault boss, Na so me sef see am o

Ma binu jor

I think the advert for sale once on a while isn't bad.It keeps people informed of prices and products available.

earthrealm:
So after a lot of back and forth,
Am back to this lifepo4 group buy matter.

Due to less than stellar performance from several china shippers, i have tried.
Am considering the safer option of the alibaba seller handling the shipping.
He says his minimum cargo is 1cbm which is 64 pieces of Lishen 3.2v 272ah batts, cost about $550 customs and all inclusive, and pick up in their lagos warehouse. I only need 32 pieces, hence looking for possible buyers of the other 32 cells.

Each cell is about $80, and shipping duration is 3 to 4 months

The chinese new yr holidays is coming, commercial activities in china will grind to a halt from early feb and pick up again early march

I will like to take 16 pieces, please. Thanks

dollarnaira:
According to my knowledge
Charging large amount of batteries of higher amp will not cause any harm to the charger.
Charging 1000amp with a 30amp for example will only take a longer period of time to full charge if it sees regular supply of power supply without connecting load to it. Most connect load to it after few hours of charging, thereby depleting the already stored current.

Am current Charging 600amp with two chargers. But d client mostly discharge dem few hours later.

To get best results, charge without depletion
Wait till it full charges.

Not like charging a 1000AH with 20A, the charging process generate some level of heat on the components depending on the quality of the charger it may packup sooner than later. Imagine stepping on a car gas at max rpm and leaving there for long without any rest interval well.....

omotoda:



That would be waste of good AH rating.Better to connect it to solar charging then. 1000ah is too massive to be left to occasional use.

Not on occasional use but to be left fully charge first.And While waiting get an alternative.

ojeysky:


Not like charging a 1000AH with 20A, the charging process generate some level of heat on the components depending on the quality of the charger it may packup sooner than later. Imagine stepping on a car gas at max rpm and leaving there for long without any rest interval well.....

Bros this is different from rmp.All chargers come with a fan for cooling.
Chargers cannot go beyond its set amp but charging time can be extended.
A 20amp cannot push more dan its capacity but wen left alone for several hours it will complete it.

samnaija:


What you stated is not what the man has now, I also did not have the experience then. .what I always advice people always have a minimum of 2 battery banks. Whether the banks is massive or not. It pays to invest in multiple banks.

Let him allow d stuff to charge for sometime while he gets an alternative for now e.g gen. He can continue to use it when it has gotten to a stage if he not patient enough. Not charging a little and take more than wat was pushed in.

dollarnaira:


Not on occasional use but to be left fully charge first.And While waiting get an alternative.

Exactly my point.What is the logic of an alternative with such massive bank!!

dollarnaira:


Bros this is different from rmp.All chargers come with a fan for cooling.
Chargers cannot go beyond its set amp but charging time can be extended.
A 20amp cannot push more dan its capacity but wen left alone for several hours it will complete it.

I disagree, the internal resistance of a 2v 1000ah battery would be massive.

Imagine using a 0.5hp sumo pump to fill a 100,000 liter community water tank.... Do you think that pump will last 6months?

There is what is called FAIR USAGE POLICY

Lovelynife:
Good afternoon. please anyone with a fairly used but very good and okay pure sine wave inverter for sale within minimum of 15k- 40k maximum should quote me. Thanks in anticipation

12V 900VA Luminous inverter,Bravo series available for sale......

thisisggood:
I had to create another name to send this as I don't know what happened to my profile. I can't send messages on this thread but can on other threads.

A friend uses 6 units of 2v 1000ah battery he got from another friend( telecoms people) with his 1.2kva mercury inverter with 20amp charging current.He has utility for 12hours daily average but complains his battery's rarely gets fully charged.He doesn't have issues with performance though but is just worried thinking the partial state of charge can kill the batteries. Any advice on this? Should he incorporate external charging?

Get this monster 75amps lifepo4 charger and save that your battery from premature death . Lead acid
Batteries should be charged close to c/10 rate to keep it happy, anything seriously lower will damage the battery.

See a good one you can buy.. barely 100usd

adrusa:


I will like to take 16 pieces, please. Thanks

Am beggining to think, this deal still wouldnt fly again.unless we move fast. Most big suppliers are gradually closing shop /not accepting new orders as the chinese new year holiday comes close.

My fear is, the batteries not being able to leave china before the shutdown happens, and the batts get to sit till march.

Supplier says he can ship out asap, as soon as he receives payment, however the window is fast closing,

Monlo:


12V 900VA Luminous inverter,Bravo series available for sale......

Please how much? Though I wish I can get 1kva(1000w) minimum

Lovelynife:
Good afternoon my ogas in the house. like to know if charging the battery with phcn or solar panels have negative impact on the battery?which one have bad impact on battery? which one preserve the battery most?

So long as you match solar production with energy needs, both are identical and have same impact on the battery given same charge settings.

Discussion is ongoing here on basics of solar energy https://www.kobocity.com/d/42-solar-energy-for-beginners

samnaija:

The nepa comes for 2 hrs charges,of course I will use the batteries when no light. U want me to stay in darkness because I dey charge batteries .
He should get a very good or big amp external charger to assist his inverter or say bye bye in a short while.

Two hours can never charge a lead-acid battery enough.
If you set your charging current too high to refill the battery in time, you'll kill it.
If you set it at optimum charging current, it won't even be half filled.
Follow my signature to learn more on the basics of inverter and battery technology. Information is key