Pls i need help on what charge controller can charge 8units of 250watts solar panel. The panel is charging 4 200ah batteries.

60amps mppt should do just fine. Do not go for pwm, go for mppt.

Ournolly:
60amps mppt should do just fine. Do not go for pwm, go for mppt.

Thanks. In short 60 amps of either mppt or pwm will work fine. Right??

60 amp charger per battery. That works out to 480 amp charging current. Ideally the charging current should not be more than 40% of the amp-hour magnitude of your battery bank. You don't want those expensive batteries being destroyed before their time.

Besides, assuming that your solar panels produce the standard 18volts, your're quite far from that 60 amp figure anyway, but just in case you want to upgrade by adding more panels, 60 amp charger should do just fine.

hiidee:

Thanks. In short 60 amps of either mppt or pwm will work fine. Right??

Yes and no. MPPT comes in handy when you have enough solar panels, like say 10KW. That 20% or so extra that the MPPT will fetch you is too small considering that you don't have enough solar panels and these chargers are often much more expensive, plus in Nigeria, there's simply no way to tell real MPPT from PWM without actually doing extensive experimentation.

hiidee:

Thanks. In short 60 amps of either mppt or pwm will work fine. Right??

Yes but mppt is much better, charges faster and lasts longer but more expensive.

If you can afford it I will advice you go for mppt.
You won't regret it.

Alusiizizi:
60 amp charger per battery. That works out to 480 amp charging current. Ideally the charging current should not be more than 40% of the amp-hour magnitude of your battery bank. You don't want those expensive batteries being destroyed before their time.

Besides, assuming that your solar panels produce the standard 18volts, your're quite far from that 60 amp figure anyway, but just in case you want to upgrade by adding more panels, 60 amp charger should do just fine.

480amps?
Like seriously?

Alusiizizi:
60 amp charger per battery. That works out to 480 amp charging current. Ideally the charging current should not be more than 40% of the amp-hour magnitude of your battery bank. You don't want those expensive batteries being destroyed before their time.

Besides, assuming that your solar panels produce the standard 18volts, your're quite far from that 60 amp figure anyway, but just in case you want to upgrade by adding more panels, 60 amp charger should do just fine.

U don't know much about inverter system ,how can u say 480w

A 60amp mppt doesn't mean its producing 60amp per battery,
It could be 10amp 24volts or 48volts depending on the connection system

Ournolly:

Yes but mppt is much better, charges faster and lasts longer but more expensive.

If you can afford it I will advice you go for mppt.
You won't regret it.

Great. Thanks.
Pls which product of MPPT 60A would you recommend for me??

Ournolly:

480amps?
Like seriously?

E shock me too ���

hiidee:

Great. Thanks.
Pls which product of MPPT 60A would you recommend for me??

The one I am using is Diamond, dunno if you'll still get it in the market.

Ournolly:

The one I am using is Diamond, dunno if you'll still get it in the market.

I noticed different types in market. A picture will be appreciated pls �

hiidee:


I noticed different types in market. A picture will be appreciated pls �

Will try to snap it in the morning.

Ournolly:

Will try to snap it in the morning.

Alryt bro will be expecting.

sofiscatedmoron:

U don't know much about inverter system ,how can u say 480w

A 60amp mppt doesn't mean its producing 60amp per battery,
It could be 10amp 24volts or 48volts depending on the connection system

Read my post again. The OP mentioned 4 units of 200 amp-hr batteries. Each 200 ah battery will need a nominal 60 amp charger, Thats a total charging current 240 amps distributed over 4 chargers(I may have miscalculated in my original post). You have 8 sets of 250 watt solar panels, thats a total of 2000 watts total. Most solar panels are between 18V~21V, so we are talking about 100 amps source current. The 60 amp chargers will allow him to upgrade by an additional 10 solar panels or so before needing additional batteries/chargers.

Alusiizizi:


Read my post again. The OP mentioned 4 units of 200 amp-hr batteries. Each 200 ah battery will need a nominal 60 amp charger, Thats a total charging current 240 amps distributed over 4 chargers(I may have miscalculated in my original post). You have 8 sets of 250 watt solar panels, thats a total of 2000 watts total. Most solar panels are between 18V~21V, so we are talking about 100 amps source current. The 60 amp chargers will allow him to upgrade by an additional 10 solar panels or so before needing additional batteries/chargers.

How can u say a 200ah will need a nominal charging amp of 60amp
Oga u don't know anything,
U are just showing you dont know anything in inverter system
And how can u sum it up to 240amp charger,
How can u use a 240amp charger on inverter battery,
Do u want to fry it?
U are just totally lost
Do u know about series and parallel connection at all?
Example
4 of 200amp battery in series will give u
A 48volts 200amp system in total, (so u charge with
within 20amp 48volts charger though the voltage is higher than 48v)
Maximum charge current for lead acid battery is capacity/10

U need to go and study about inverter system and battery before u burn someone house

sofiscatedmoron:

How can u say a 200ah will need a nominal charging amp of 60amp
Oga u don't know anything,
U are just showing you dont know anything in inverter system
And how can u sum it up to 240amp charger,
How can u use a 240amp charger on inverter battery,
Do u want to fry it?
U are just totally lost
Do u know about series and parallel connection at all?
Example
4 of 200amp battery in series will give u
A 48volts 200amp system in total, (so u charge with
within 20amp 48volts charger though the voltage is higher than 48v)
Maximum charge current for lead acid battery is capacity/10

U need to go and study about inverter system and battery before u burn someone house

Not sure if this is a specie of reading disability of comprehension. Let me respond point by point, hopefully to make things easier for you.

How can u say a 200ah will need a nominal charging amp of 60amp

Because the nominal magnitude of charging current is about 30% of the rated amp-hr of the battery, so 30/100 X 200 is 60 amps. If you're still unsure, use your calculator. If you were not aware of this 30 percent rule of thumb, do a little research on deep cycle batteries.

And how can u sum it up to 240amp charger,

Once again, read my post. I believe that I did mention

240 amps distributed over 4 chargers

So 60 amps per battery with 4 batteries is 60 X4 = 240 amps. Even you can handle this arithmetic.

How can u use a 240amp charger on inverter battery,
Do u want to fry it?

Read my post again. 60 X4 = 240 amps. No mention of a 240 amp charger, given that such a device even exists in the market.

Do u know about series and parallel connection at all?
Example
4 of 200amp battery in series will give u
A 48volts 200amp system in total, (so u charge with
within 20amp 48volts charger though the voltage is higher than 48v)
Maximum charge current for lead acid battery is capacity/10

Again, read my post. The assumption was made on the source output voltage(assumed to be 18V~21V). Now granted, one can imagine a matrix configuration of 3 solar panels connected in series with 3 such arrangements being connected in parallel to get your approximately 60 Volts for that 48 volt charger, but the trouble with that is that the system will suffer much ohmic losses from those solar panels connected in series. Far more energy efficient to keep the system parallel.

Please before making any more responses to my post, read them properly. Thanks!

Alusiizizi:


Not sure if this is a specie of reading disability of comprehension. Let me respond point by point, hopefully to make things easier for you.


Because the nominal magnitude of charging current is about 30% of the rated amp-hr of the battery, so 30/100 X 200 is 60 amps. If you're still unsure, use your calculator. If you were not aware of this 30 percent rule of thumb, do a little research on deep cycle batteries.


Once again, read my post. I believe that I did mention So 60 amps per battery with 4 batteries is 60 X4 = 240 amps. Even you can handle this arithmetic.


Read my post again. 60 X4 = 240 amps. No mention of a 240 amp charger, given that such a device even exists in the market.



Again, read my post. The assumption was made on the source output voltage(assumed to be 18V~21V). Now granted, one can imagine a matrix configuration of 3 solar panels connected in series with 3 such arrangements being connected in parallel to get your approximately 60 Volts for that 48 volt charger, but the trouble with that is that the system will suffer much ohmic losses from those solar panels connected in series. Far more energy efficient to keep the system parallel.

Please before making any more responses to my post, read them properly. Thanks!

You are a novice,
Dont use 30% c to charge inver ter batteries ,they will die in no time
,
That is why you can never see an inverter that has that configuration
Inverter syatem has
10% charge rules on battery
10amp for 100ah
17am to 20amp for 200amp system
Thats y u only see 10/20 charge selector on the back of inverters
Have u ever seen an inverter with 30% rule on battery brfore, not possible

Check the post and see how everyone is laughing at your mumuism,
Don't quote me again
I dont reply inexperienced people
Even the batteries in the market rated 200ah are not 100% 200ah they are likely lesser than that ,only some few expensive ones are close to that,,

How can you even assume that 4 x 200ah battery system will still be in 12v inverter system
Its likely a 24v or 48v system
That shows you dont know much aboutl inverter in practical aspect
A 12v inverter system (less than 1.5kva) with 4x 200ah battery is not that efficient due to much charge load on the inverter, it can cause constant damage to the inverter system,
Because the inbuilt charger is limited to 10/20amp
So a 24v or 48vots inverter is recommended in that case

sofiscatedmoron:

You are a novice,
Dont use 30% c to charge inver ter batteries ,they will die in no time
,
That is why you can never see an inverter that has that configuration
Inverter syatem has
10% charge rules on battery
10amp for 100ah
17am to 20amp for 200amp system
Thats y u only see 10/20 charge selector on the back of inverters
Have u ever seen an inverter with 30% rule on battery brfore, not possible

Check the post and see how everyone is laughing at your mumuism,
Don't quote me again
I dont reply inexperienced people
Even the batteries in the market rated 200ah are not 100% 200ah they are likely lesser than that ,only some few expensive ones are close to that,,

How can you even assume that 4 x 200ah battery system will still be in 12v inverter system
Its likely a 24v or 48v system
That shows you dont know much aboutl inverter in practical aspect
A 12v inverter system (less than 1.5kva) with 4x 200ah battery is not that efficient due to much charge load on the inverter, it can cause constant damage to the inverter system,
Because the inbuilt charger is limited to 10/20amp
So a 24v or 48vots inverter is recommended in that case

Dont use 30% c to charge inver ter batteries ,they will die in no time

I have advised you to do some research on deep cycle batteries, no need to engage in this exercise any further.

That is why you can never see an inverter that has that configuration
Inverter syatem has
10% charge rules on battery
10amp for 100ah
17am to 20amp for 200amp system
Thats y u only see 10/20 charge selector on the back of inverters
Have u ever seen an inverter with 30% rule on battery brfore, not possible

Perhaps it's because higher current chargers cost more? 10% is close to the minimum that you need to actually increase the electrical energy content of the battery, 30% is near the maximum to maintain the longevity of the battery and in principle, there's no limit to how high a charging current can be used, it mostly depends on how efficiently that the heat produced from the battery can be dissipated. Hell, you need about 1 amp just to maintain the state of charge of the battery. I designed solar/wall charge controllers for a living once upon a time(both PWM and MPPT) as well as inverters(modified sine, pure sine and grid ties). Nothing you have to write here is worth reading as far as I'm concerned but I humor you yet.

Check the post and see how everyone is laughing at your mumuism,
Don't quote me again
I dont reply inexperienced people
Even the batteries in the market rated 200ah are not 100% 200ah they are likely lesser than that ,only some few expensive ones are close to that,,

So rated 200ah but not actually 200ah hence the 10% rule but if actually 200ah then 30% rule. You know, at first I thought that you might be afflicted by some sort of reading/attention disability, but now I see that it's probably due to low intelligence. Regardless, I make no definite remarks and give benefit of the doubt, after all I don't know who you are, what you've accomplished or what you are capable of. I can only judge by the nonsensical rubbish that you post on this thread.

How can you even assume that 4 x 200ah battery system will still be in 12v inverter system
Its likely a 24v or 48v system
That shows you dont know much aboutl inverter in practical aspect
A 12v inverter system (less than 1.5kva) with 4x 200ah battery is not that efficient due to much charge load on the inverter, it can cause constant damage to the inverter system,
Because the inbuilt charger is limited to 10/20amp
So a 24v or 48vots inverter is recommended in that case

Do you realize that it is not necessary for an inverter system to consist of one single inverter, but can contain many, depending on scale? The only "setback"(which is completely ignorable for virtually all interests) is the presence of multiple phase differences in power, in which case one can use synchronized inverters, which I also happen to have experience with designing(similar principles with grid tie inverters)

P.S. I see now the futility of this exercise. Please do not reply anymore of my posts. Thank you!!

Alusiizizi:



I have advised you to do some research on deep cycle batteries, no need to engage in this exercise any further.



Perhaps it's because higher current chargers cost more? 10% is close to the minimum that you need to actually increase the electrical energy content of the battery, 30% is near the maximum to maintain the longevity of the battery and in principle, there's no limit to how high a charging current can be used, it mostly depends on how efficiently that the heat produced from the battery can be dissipated. Hell, you need about 1 amp just to maintain the state of charge of the battery. I designed solar/wall charge controllers for a living once upon a time(both PWM and MPPT) as well as inverters(modified sine, pure sine and grid ties). Nothing you have to write here is worth reading as far as I'm concerned but I humor you yet.


So rated 200ah but not actually 200ah hence the 10% rule but if actually 200ah then 30% rule. You know, at first I thought that you might be afflicted by some sort of reading/attention disability, but now I see that it's probably due to low intelligence. Regardless, I make no definite remarks and give benefit of the doubt, after all I don't know who you are, what you've accomplished or what you are capable of. I can only judge by the nonsensical rubbish that you post on this thread.



Do you realize that it is not necessary for an inverter system to consist of one single inverter, but can contain many, depending on scale? The only "setback"(which is completely ignorable for virtually all interests) is the presence of multiple phase differences in power, in which case one can use synchronized inverters, which I also happen to have experience with designing(similar principles with grid tie inverters)

P.S. I see now the futility of this exercise. Please do not reply anymore of my posts. Thank you!!

Mumu,
Not only 240amp chargers
Is 800amp charger, u must be a welder
People will keep laughing ar ur mumuism
I pity the person u will do setup for with your quack knowledge,