₦airaland Forum

Please help me choose, Peugeot 406 or 408.
Better driving experience/ride quality.
More reliable and overall ruggedness.

Note: I had 406 auto transmission before which never gave me any issues.

.

.

.

Happy birthday bro.
More blessings!

ceejay80s:


HAPPY BIRTHDAY TO ME

SolnergyPower:
I've been following your posts on the original subject. Impressive.

Have you considered Solar Pump for your water pumping?

No sir, I have not considered that.
But I will definitely make use of solar pump in my other project next year.

Thank you.

Oshomo12:
Let move forward; things to note
1. @50% DoD for the batteries, a very good brand @12v will give u around 2yr of use (I would not recommend 50% DoD and would not recommend 12v, go for 2v to achieve ur desire voltage).
2. 24v system is not recommended here, y? cos u have to know what u re doing in terms of wire gauge, for this amount of current, u need to go max on the wire size! So i would recommend a 48v systems (500 w continuous is a lot of load)
3. Inverter? u may need to go or at least near premium brands here.
4. For pumping machine, I don't know if I have missed the rating, how many hp are we looking at, how often do u want to pump in a day, do u wish to pump during Sun down hrs too, if yes, how long?

Let start with this first.

Thank you.

I based my calculations on the fact that I power same stuffs with Sumec gasoline generator SPG 2500.
5.5HP
Rated AC current 9.1A
Rated output power 2.0kw

Pump twice a day. Morning and night.

I have decided to use a 48v system.
I will start with 12v 200ah batteries and upgrade to 48v lithium battery later.

Have read through.
Considering cost and efficiency.

Options in view:
1. Prag 7.5kva 48v (can set DoD between 50% to 100%)
Prag 80a MPPT cc
8 units of 12v 200ah

2. Fangpusun xtender 4000va 48v
Fangpusun flex max 80a mppt
8 units of 12v 200ah

Still checking out.

Namzy:
Download solar CT app from playstore and do your calculations

Okay.
Thank you.

Oshomo12:
Guys, Guys.........,
do re-check ur energy requirements. How can u/want to run 500 w for 18 hr, haba! don't you go to work?

Note; answer to 1 above
@50 % dod u will need nothing less than 1100 Ah 24V batteries, panels not less than 5500 w, CC of about 140A @24V. So do u still want to continue?

Thank you.
Yes, I would like to continue and I believe these responses will tailor my options and decision aright.

Oshomo12:
Guys, Guys.........,
do re-check ur energy requirements. How can u/want to run 500 w for 18 hr, haba! don't you go to work?

You don't know what I need it for.
Don't I go to work? No need for such line bro.

Stating 18hours, do you know if I want the powerbank to be capable of that?

And yes, I need it to capable of running continuously for at least 12hours when not being charged.

earthrealm:
your plan is doomed from the start, make effort to read previous pages, this issue has been discussed a thousand times.

max load u shud put on a 12v 200ah battery is c/20 wch is 10amps which is equal to 120w, since u hv 2 of them, then its 240w...u may not do serious harm to the bank if u intermittently draw x2 of this say 480w for short periods ie c/10, but anything higher than this...spells premature death for the battery.

google well, to gain more knowledge about what you are about to enter into

Thank you.
I have been reading through since Sunday afternoon I saw a link to this thread.
But, you know how it can be. I seem confused along the line, regarding which choice to make and pursue.

Please help me with this...
1. Outline what I will need to run a continuous load of say 500watts for 18hours.
2. Outline what I will need to power same 500watts with water pumps.

This will guide my budget please.

Good morning everyone,

I would like to buy Prag 4kva 24v inverter with 2 units of 200ah batteries.
Continuous load will be about 350watts but wants to accommodate water pump and ironing (low voltage), please what size of solar panel and mppt charge controller should I budget and hope for in order to achieve good efficiency of the system?

Dishtech:
My panel is just 250watts only so can not deliver up to 40a, is just an oversized.

How many amperes charges the battery pack?
5 or 10amp? I asked because the normal AC charger is rated 5a 14.6v

Dishtech:
For I have small package like that, 2 used 40ah LiFePo4 battery (10k each), 250watt solar panel (33k) 40A pwn charge controller ordered from China (6.5k) and a homemade inverter made by my self (7k), cable (3k) TOTAL #69,500. This power my 32" Led TV, home theater, decoder, my standing fan, charge my phones, and 4 Led bulbs. Am usually home from 7pm which my appliances comes on then, till 11:30pm or 12am bed time TV is off leaving light and fan till 3 or 4am when weather is cold fan is off leaving light till day break. If am home I equally use the system when battery is charged from noon and the system is running smoothly for 6 months going. Below are my setup!

I didn't know this Lifepo4 batteries can be connected in series.
I know this battery is rated 5a 14.6v but how come you use 40a Charge controller.

adrusa:
Let me share a little experience with you, especially for people who may be employing installers to do their solar jobs. A small solar set up was installed in my office with 8 batteries at 48v and what appeared like an a PWM controller but with MPPT written on it. We really didn't put it to use until sometimes last week. However, we noticed that the batteries soon died, even in the afternoon with blazing sun.

So my colleagues in the office informed me and I went down to see the installation. I asked that the NEPA input should be put off and put a load on the inverter. Lo and behold, the charge controller was not supplying any current to the battery. So, we were effectively running on the batteries. While the installer was fiddling with the installation, I looked at the label on the CC. Low and behold, it is labelled "auto 12/24v". So, the installer actually put a CC with max 24v input on a 48v system!

Fast forward to this afternoon, when the installer brought a Fangpusun CC (the FM80 Clone) to replace the CC. Still the CC was still not supplying any current to the batteries. Unfortunately, the installer was garrulous, unwilling to own up to his mistakes and was insisting that everything was fine. By the way, the Fangpusun was displaying "unloaded" at the right lower corner. I really have no idea what that means since I have never seen that on my original outback CC.

So, lessons

1. Don't assume that your installer know what he is doing, pay attention and ask questions
2. Ask a more knowledgeable friend to help you look over your installation if it is working well
3. Don't let any installer bamboozle you. If he can not explain what he is doing in a way you can understand, he probably does not know what he is doing.

But for the fact that I checked, we would have been thinking that our solar was working well, when we were only using NEPA to charge our batteries.

Finally, what does "unloaded" mean on Fangpusun Outback Clone?

You are right.
And this is why I have been reading through this thread as I saw the link.
Have gained good knowledge here.
Thumbs up guys.

zeestone99:
I couldn't make a review on the 1st batch of lithium batteries. Another batch has landed and I have the time to the reviews. I have two units of these. 100ah 48v each. Will keep the house updated.

Call/whatapp 08117398294 for your solar panels and batteries.

Sweet

I love this thread.

zeestone99:
Let's do the maths. If i do 11 years at 80% comfortably. You buy four 100ah between 60 to 65k.thats 240k to 260k.
Secondly you dare not do 80% otherwise you change your batteries less than a year. Let's say you do that and change batteries yearly. That's 260k × 11 = 2.86million.
Now let's assume your batteries did 2years plus, that's 260k × 5 = 1.3million.
Thirdly let's factor the fact that one battery starts misbehaving and we are compelled to change the whole four.
Now let's talk about faster recharge. I could go on and on but let's leave it here.

Everyman with his own opinion sha. You might like leadacid while some people prefer lithium.

This is awesome.
Does it have inverter compatibility issue?
I mean, can one use it with any 48v set up?

Topmost11:
Like the gurus will say, define your load first.

300 watts continuous load, and an inverter refrigerator which won't be on always.
Will pump water during the day.

Thank you.

Please, I need advice.
I want to buy Prag 2.5kva 24v inverter with 2 batteries. Please, What size of solar panel will fit in and also a matching mppt charge controller?