₦airaland Forum

taofeek11:
Onion business, go North, buy a bag (11k), and come and sell to South 22k

fukNaija:
Lol. Have you watched okocha talking before? Telling you the truth now mean asslicking to u lmao. Like I said make money then watch your tone change to something else. It mustn't be American , its just gonna change- oponu

Coldshisha:
Why call him dog? That's his sexual fantasy.. Oba of Benin is legally married to blood sisters, an American IndecentStar acts with her daughter and it's not fictional

son in Yoruba land inherit their fathers wife and concubines

Cousins Mary in British royal family, same as Fulanis and Arabs

So why call him a dog

Ihatemen:
I hate men

Gaddafih001:
Your children should get ready to pick you up in a hotel room in your old age..
It is certain.

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!!

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!

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.

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.