bigrovar:


We can't have a thriving community with this type of attitude. Accusing someone of lying without any proof to what end? Why should he lie? He doesn't sell lithium batteries neither does he manufacture them. If his suggestion tickled your insecurities then that is your problem.

Earthrealm is one of the Tubular batteries OG. He has lots of experience with them and he told no lies. Tubular batteries like all flooaded acid batteies are but designed for High rate of discharge. It is just one of the down side of the battery chemistry. Tubular are rated for C20 discharge or about 10A for a 200AH battery. 10x 48 = 480w this is the rated or optimal discharge rate of an average 200AH tubular battery in 48v configuration. Anything above that and you are discharging the battery faster than it designed rate if charge.

Putting a 1.5HP device which is over 1000w or about 20A This could lead to inevitable voltage sag especially if the battery is at 50% state of charge which can even trigger a low voltage disconnect.

A cheaper alternative would be to use an AGM battery like Quanta or fullriver DC. AGM have higher rate if discharge and some can go as high as C10 or 800w in the case of 200AH in 48v configuration.

IyaTola:
Can I get a quote for 5KVA?

Thank you in advance

nnadychuks:
Lead acid
Li-ion
LiFePO4
Which is the best among these batteries? I’m asking cos my Li-ion “Haustrom” battery died under one year

Juror:

The reality is that he'll hardly check the sun's output before he powers the pumping machine any afternoon he wants to use it and sometimes he may not even be the one to switch it on, or he may even use a timer for it. The implication is that nobody can guarantee what the sun's output would be at the time the machine is being used or even the battery's state of charge, this means that at some point, the battery may have to supply all the power required by the pumping machine and there's no gainsaying that lithium would be more suited in such scenario than lead acid except he has some other automation in place to check the battery's state of charge and solar output which then allows the pump or not.

NiyiOmoIyunade:
Are you forecasting zero yield from the solar panels from like 12pm or what?

I am wondering why people have such a dim view of the abilities of a lead acid battery - especially in this case when things could be arranged so that there will be sufficient solar for the pump to run off or at the very least enough solar to offset some of the pump's energy demand.

Juror:

The reality is that he'll hardly check the sun's output before he powers the pumping machine any afternoon he wants to use it and sometimes he may not even be the one to switch it on, or he may even use a timer for it. The implication is that nobody can guarantee what the sun's output would be at the time the machine is being used or even the battery's state of charge, this means that at some point, the battery may have to supply all the power required by the pumping machine and there's no gainsaying that lithium would be more suited in such scenario than lead acid except he has some other automation in place to check the battery's state of charge and solar output which then allows the pump or not.

jonescosmos:
WOW, Bros #Trippledots . Seems you just got back from a Presidential visit to Mars. welcome back sir.
We've gone long past these requests. Just scan & skip through the pages till you meet us at the present.
All Jokes bro. You can take all the time you need.

Cheers

bigrovar:
Not too long ago someone asked how long can a tubular battery last and those of us who have used those batteries gave our experiences. I started my solar journey with 2 Tubular batteries and used them for 3 years (Including 1-year completely off the grid in a 2 bedroom house with 4 occupants) The secret is how you design your system to avoid the limitation of whatever system you are using.

In my case, I ran heavy loads like my freezer and fridge during the day and thus on solar and limited battery discharge rate to about 150w. This includes a TV, fan, and lights for the house. heck, my night load was once 90w thanks to having efficient loads like led lights, dc ceiling fans, and solar outdoor lights. The low night discharge was way below the recommended discharge rates of those batteries which in my case was 200w.

The only thing I ran my generator off on was the water pump and I decided 20 minutes of generator time once every 2 days was more efficient than putting a 1HP water pump on a 5kwh battery bank designed for a 200w discharge rate.

I later sold those batteries and got 4 Exide Index batteries 200AH directly from Multipower ilupeju. These upgrades allowed me to increase my loads hence things like an electric kettle, microwave could be used with the batteries (In short bursts) and my night discharge became 300w (Still within the discharge limit of my batteries)

The Exide Tubular are in their second life with a friend which puts them at 4 years of use. I ensured I used the batteries within the limits of their rating,
* I had a battery sensor that allowed for the temperature-compensated charge.
* I made sure my batteries were rarely discharged below 50% dod
* I made sure batteries were fully charged every day and never left them in a partial state of charge
* I also made sure that I kept the charge voltage, and discharge rate to be within the limits accepted by the battery chemistry.

When you come to a place like this, come with facts not offing and puffing but offering very little substance. I have put out the facts as I see them. It is up to whoever is reading this to do as they see fit. Every decision has consequences. How long your battery last depends on how well you treat them.

okikigsm:


Pls do u have d ac type/model?

NiyiOmoIyunade:
Are you forecasting zero yield from the solar panels from like 12pm or what?

I am wondering why people have such a dim view of the abilities of a lead acid battery - especially in this case when things could be arranged so that there will be sufficient solar for the pump to run off or at the very least enough solar to offset some of the pump's energy demand.

samnaija:


So according to your school of taught with lithium sun go balance.

Juror:

I've heard about fullriver DC having such capability, is it being sold locally? I mean the DC variant that has such higher discharge rate.

samnaija:


How many panels did you have, because all the load you stated. On 2 batteries is catastrophic. Two batteries that makes 24v200 ah of lead acid. Are you using presently this capacity in lithium or it is larger than this.
People that have 8 lead acid batteries are even more discreet than this if you don't have enough panels.

Juror:
Does anyone have any experience using the common blue & black PWM controller to charge LiFePO4 12V batteries ?
The highest volt I've seen it reach in a setup is 14.5V, any thoughts or experience? good or ?

Juror:
Does anyone have any experience using the common blue & black PWM controller to charge LiFePO4 12V batteries ?
The highest volt I've seen it reach in a setup is 14.5V, any thoughts or experience? good or ?

Juror:

Not zero yield but insufficient yield. This isn't about berating lead acid, I merely described realistic situations and scenarios which could easily occur.

earthrealm:
Errrrm,
I think from some of the responses so far, we are missing the whole point of cedarfarms enquiry.

I wont be drawn into this useless shenanigans , lithium vs leadacid battery, cos whatever anyone is using/decides to use. Leadacid o, lithium o...e no dey put shiishi for my pocket , why should i cry more than the bereaved?

Its best you give your advice, focusing primarily on a design that will work for cedarfarms.and not focus more on attacking what someone else has said.

I gave my answer based on what i feel is best for him/what i would do if i were in his shoes.
From his questions/comments here...you can guage his knowledge/experience level----without any disrespect to him, he is a greenhorn in this whole solar-inverter biz, so i factored all those in, b4 giving my recommendation....and it would be nice others think along that line too. And dont come up with complex solutions that OP might not understand or be able to actualize.

Las las he will be alright at the end,

adrusa:


And you are right bro. It is unfortunate that a few people are unable to contain their rank insecurity with their lead acid battery and attack everything and everyone they perceive as dissing their favourite battery chemistry. They sometimes forget that many lithium advocates used lead acid for many years, some running into up to a decade. I used lead acid (AGM and flooded) for about 10 years.

I used to pump water on my tubular batteries, but I had 8 of them, 400AH 48V, and my pump was 1 hp. I won't do 1.5 hp on 200AH 24V lead acid battery under any circumstance. Your inverter must be able to do a good surge for considerable length of time, like 5 minutes to be safe. And if there is a major cloud passing while the pump is working, an inverter LVD is a real possibility due to voltage sag.

Irrespective of how many people don't like hearing it, Lithium is this guy's best option. The next best option is to have a considerably large lead acid bank like GeaorgeD, 400AH 48v or 800AH 24V will be a good starting point.

Aboki01:
Good evening Oga's in here... Abeg I would like to ask if 400-600k can setup a solar(inverter). I intend powering
1. 5 energy saving bulb
2. 55" Samsung smart TV
3. 2 ox fan
4. A deep freezer and a 95l haier thermocool refrigerator
5. 1 ceiling fan.
Note: The major purpose of setting up the inverter system is for use at night time. From 7pm- Anytime it trips off in the middle of the night.

Cedarfarms:


I sincerely thank you for the words of encouragement.....my goal is to power the 1.5hp pumping machine, and a few household appliances, like tv, decoder, 5 light bulbs and a rechargeable fan.

But the pumping machine will only be used during the day.

Aboki01:
Good evening Oga's in here... Abeg I would like to ask if 400-600k can setup a solar(inverter). I intend powering
1. 5 energy saving bulb
2. 55" Samsung smart TV
3. 2 ox fan
4. A deep freezer and a 95l haier thermocool refrigerator
5. 1 ceiling fan.
Note: The major purpose of setting up the inverter system is for use at night time. From 7pm- Anytime it trips off in the middle of the night.

Juror:

State your appliances
What's your budget range ?

Juror:

State your appliances
What's your budget range ?

NiyiOmoIyunade:
Say you want to build a smallish system and your household can get by on like 500w of day time loads and 300w ish of night loads - you may have to run the 1.5hp pump off grid or gen primarily.

If you go the lead acid route, every 12v 200Ah battery can support about 120w of loads (the C20 rating) so you would need 4pcs of 12v 200Ah to run your 300w of night loads from 6pm to 8am every day - 4 pcs of 12v 200Ah also fits your existing 48v Luminous inverter perfectly.

The solar panel wattage needed to support 500w of loads from 8am to 6pm and 300w of loads from 6pm to 8am will be any where from 3000w to 4000w of solar panels - at this point in tech and time, I would say choose the larger panel sizes so at least 450w - 9 pieces of quality 450w panels will get you to 4000w mark nicely and put you on the energy independence side of the curve. 6 pieces of quality 450w panels will give you enough energy most days.

All these above assume you are fully offgrid, if you get some hours of PHCN or Gen then you can size your panels leaner, if you are able to reduce your loads too then all the better.

You will see that the bill of materials for this 'small' offgrid system runs into a few millions at today's prices. If budget constrained, the more you can prune down your loads, the more you can make your system lean.

The idea is that this will be your system for 2 to 3 years and then you can upgrade to better tech - the panels and your inverter can likely be retained through all your upgrades but you will most likely need new batteries.

If your budget supports it, you can get 51.2v 135Ah LFP battery pack instead of 48v 200Ah lead acid pack (4pcs of 12v 200Ah lead acid) - with Lithium you just need to get your charge profile right and set a suitable LVD and you can worry less about whether you are overloading the batteries or whether there was enough solar charge for that day. With Lithium also, you can expect from 6 years and above of use vs say 18 months - 4 years with lead acid. The level of positive assurance is higher with Lithium i.e a well designed pack with decent cells will likely give you 8 years or more of service. If you cross 1 year with your lead acid, you will celebrate, 2 years you got something good and 3 years and above you got it right.

If your budget does not cover enough for 9pcs of 450w panels + 4pcs of 12v lead acid batteries at least then you are going very lean, if you already made the decision to go solar any ways then I would say just get 4pcs of 450w panels + 2pcs of 12v 200Ah + compatible inverter (you will need to jettison the 48v Luminous) and use this system to learn what is possible - later with your learnings and more cash available and faith in renewable energy you can build a system more in line with your needs.

One viable way to proceed as a newbie is to get a quote from an installer and bring it here for people to help you critique the materials used and costs. If you are more DIY inclined you can purchase an energy meter within 10k and use it to determine what your appliances consume - this will put you in a very good place with respect to sizing your system properly.

bigrovar:
Not too long ago someone asked how long can a tubular battery last and those of us who have used those batteries gave our experiences. I started my solar journey with 2 Tubular batteries and used them for 3 years (Including 1-year completely off the grid in a 2 bedroom house with 4 occupants) The secret is how you design your system to avoid the limitation of whatever system you are using.

In my case, I ran heavy loads like my freezer and fridge during the day and thus on solar and limited battery discharge rate to about 150w. This includes a TV, fan, and lights for the house. heck, my night load was once 90w thanks to having efficient loads like led lights, dc ceiling fans, and solar outdoor lights. The low night discharge was way below the recommended discharge rates of those batteries which in my case was 200w.

The only thing I ran my generator off on was the water pump and I decided 20 minutes of generator time once every 2 days was more efficient than putting a 1HP water pump on a 5kwh battery bank designed for a 200w discharge rate.

I later sold those batteries and got 4 Exide Index batteries 200AH directly from Multipower ilupeju. These upgrades allowed me to increase my loads hence things like an electric kettle, microwave could be used with the batteries (In short bursts) and my night discharge became 300w (Still within the discharge limit of my batteries)

The Exide Tubular are in their second life with a friend which puts them at 4 years of use. I ensured I used the batteries within the limits of their rating,
* I had a battery sensor that allowed for the temperature-compensated charge.
* I made sure my batteries were rarely discharged below 50% dod
* I made sure batteries were fully charged every day and never left them in a partial state of charge
* I also made sure that I kept the charge voltage, and discharge rate to be within the limits accepted by the battery chemistry.

When you come to a place like this, come with facts not offing and puffing but offering very little substance. I have put out the facts as I see them. It is up to whoever is reading this to do as they see fit. Every decision has consequences. How long your battery last depends on how well you treat them.

Aboki01:
Good evening Oga's in here... Abeg I would like to ask if 400-600k can setup a solar(inverter). I intend powering
1. 5 energy saving bulb
2. 55" Samsung smart TV
3. 2 ox fan
4. A deep freezer and a 95l haier thermocool refrigerator
5. 1 ceiling fan.
Note: The major purpose of setting up the inverter system is for use at night time. From 7pm- Anytime it trips off in the middle of the night.