Sapiosexuality:
I've been seeing some very high prices here and it made me take it out of my order of things. For this 2.5 KVA 24v hybrid system, do I still need my old MPPT charge controller or it's inbuilt into the inverter? Thanks.

adeshina36:
Good evening

Please I have this kind of configuration setup in my apartment

5kva 24v Inveter
400Watts Solar panels (5)
220ah battery (2)
60amps charger

My question is whenever I try charging with Nepa light o shows it fully charged within few minutes but when it’s on resting stage meaning when it not connect to any form of charge and I check the battery I get 77% even while on solar it shows it fully charged but at the end of the day I see 75% please how can I get it charged to 100% or should I just ignore the fact that it say fully charged and continue charging please any help would be appreciated. Thank you 🙏🏾

Dam5reey:


You are using a good Batteriy chemistry that allows charging up to 0.5C continuously.
60A on a 173AH batteries is 60/173C that is 0.35C.. So you are fine.

Also note, since the charge controller is limited to 60A If you have inverte powered on, most people tend to use their Fridge during peak periods, so, in essence, your 60A is reduced to about 40A (or less depending on load), left to charge the batteries, so Not all 60A will charge the batteries except you always shut down inverter to charge which may not be the case.

Allem:
Happy Sunday all.
Pls can I connect 2 550w panel in parallel to a 12v 173ah system with a 60a PowMr cc. Hope it will not fry the cc?
What exactly will happen
Rain is fast approaching and I don't want to survive like last year.

kristien4:
So sending 60amps into a flooded battery before it reaches near full stage is good for the battery??

Drgreatone:

Being curious to know.. while using a 60amp CC with flooded batteries, does it send the whole 60amps into ur batteries while charging? If yes, wont that quickly damage the battery as a result of the high current?

HeavenlyBang:


VOC isn't much of an issue, as you can get past that with smart wiring.

SRNE's 3KVA hybrid for example, is capped at 1440W.

The popular Powmr 60A MPPT CC is capped at 1400W, even. How do people go about it?

amicdan:
Hi House.
My charge controller drops from 5 bar ( 13.6 volts ) to 3bar ( 12.4 volts ) after full charge on a load of 150 watts within 2 minutes.

What could be the issue ? Setup was done a week ago.

Note had to charge with external intelligent 20amps charger to full bar.

This is my set up :
1. 2 x 335 watt GCL panel in series
2. 60 amp PWM Charge controller
3. 220amps Caesar tubular Battery
4. 1KVA MSW Inverter

The main issue is the battery dropping from 5 bar to 3 bar on the charge controller with 2 minutes once load is applied on the the battery.

isangjohnson:
Please I need review on this inverter.

Jefferyzz:
Stay away from yohako product. There are lots of substandard products under yohako umbrella, there no way u u can figure out the good one.
This features u mentioned is on growatt, powmr, felicity, srne etc n price is budget as well.

Saipro:

I apologise, if the science statement rubbed off you the wrong way. I come from all 3 backgrounds. I merely believe your readers come from all walks of life. This thread began as a way to be a compendium/resource for all things to support the FTA rave of the time. Along the way, it became about all things renewable energy and the FTA aspect was relegated to the background.

I'll simply state what I had in mind. Peukert's law. You were talking about power equivalents thus a comparison of 12V 400AH vs 24V 200AH vs 48V 100AH is apt, being the same stored energy quantity. I₁V₁ = I₂V₂ = I₃V₃. It means one could draw the same amount of energy at lower current, if you raise the nominal voltage. In practical applications, the amount of power each is capable of delivering differs, as energy drawn varies due to discharge inefficiencies (mostly as a result of the internal resistance of the batteries vis a vis a resultant heating too). As a result, higher voltage systems would often perform more efficiently, as the amount of energy drawn increases. In practice, the upper limit of continuous discharge in a 12V system is about 6kW, beyond which you stand a real risk of melting the battery terminals or creating weird fluxes in the electrolyte (if FLA). Most conventional chargers don't exceed 120A thus limiting charge to an 1.8kW max anyway.

The resistance of the cabling matters just as much. This is why cable diameter and transmission distance matter! Multi-stranded chosen as superior to single strand.

My intention was not to waste anyone's time.

ZIKEYBOY11:
What's your thoughts on Gel batteries everyone?
Good morning all.

temi4fash:


Is this applicable to GEL Batteries too?

Drgreatone:
Pls which would be more efficient charge wise? 4 150watts paired to a pwm or 2 300watss paired to a mppt charge controller for a 12v 200ah battery?

solareclips:
Please is it normal for a 24v tubular batteries that is 100% when there is sunlight or public utility but modestly after sunlight or public utility goes off, the power reduced to 85 or 75% , it will now depend on the loads before it will start to ho down.

abbeymighty:
Thank you, 2.5kva is mppt while 1.7 and 1kva are pwm

brightk:
try to reduce your charging current. Check ur present charging current

abbeymighty:
Please can anyone give me review on affripower 2.5 kva hybrid , i used it with 3.5kva generator but it does not charge and we hardly have public utility.

ZIKEYBOY11:
Hello house, I need advice on this setup.

I have a 5kva 48v Felicity hybrid inverter.
8 X 300W Solar panel.
4 X 12v 220ah battery.

According to the inverter specs, the PV input voltage range is 90V - 550V. While the Maximum input current is 15A.

My question is this, in what arrangements should the solar panels be ? All in series, or 4 series and 2 parallel? Or 2 series and 4 parallel?

Also, whoever has used Felicity hybrid inverters, please confirm what type of in-built charge controllers they have ?

Thank.

Obnoxious2001:

Why can't i go less.
Probably 3s2p

Obnoxious2001:

Inverter can take upto 450v dc

Dam5reey:


Hybrid are more efficient if you are using Grid and Solar to charge. It save your electricity bills if you are metered.
It will do the same job as a separate Controller.

Recommended charging current is like 20A for these set up. Which I believe your 2.7kwp is capable of.

Considering you have flooded battery.. only way to increase speed is increase the charging current.. you may have to top the water from time to time.

Dam5reey:


What's your definition of Non hybrid and Hybrid... ? Non hybrid- without internal Solar Charge controller, Hybrid- with Internal Solar Charge controller.

What's your current setup, how do you charge..

My own definition of Hybrid is that it has.
Solar Charge Controller inbuilt. In addition to the AC charger..
In essence the charging Algorithm is the same.

1. about Speed charging.. this depends on many factors.
What determines the speed is the current you are charging with.

Provide more details for further clarification

Trippledots:
Good evening guys. Please someone argued that tubular batteries do not emit gases anymore, that it was older technology issues which has been solved now. He is a coren, mnsce etc etc engineer.

Any one can corroborate his claims please?

oweniwe:


Someone that can afford 2,700w panels shouldn't have any problem buying the right size of charge controller except the system is a gift