₦airaland Forum

I've seen guys here on aeva and powerforum.
Keep it up guys.

Someone is saying Solar does not live to expectations, and another is saying he is having too much power up to the point of willing to share to next flat

Keyword is Knowledge

I think Both can help each other.

JaySterling:
So if 22.5V is very low

Then how about 24v, 25v, 26v and 27v

I need to understand the scale properly

What type of battery do you use?

ewizard1:
What type of battery do you use?

Zedix 12v

x 2

Alright bosses

essegis:
Please and please never disconnect your battery from the charge controller while it is still connected to solar panels. This is the only place I see where they it will not fry your controller. From my small knowledge it will fry it sharp sharp.

Wait till night fall and go view your voltage then, at least no normal charge from solar. Also ensure you do it when electric charging too is not ongoing, meaning when there is no light.

I hope this helps. For now just save the chart and refer back to it from time to time to draw up your own battery profile.

I just checked now being 7:15pm

The current is 0 amp and the battery voltage is displayed as 26.4

So can I say it is fully charged ?

JaySterling:
Zedix 12v

x 2

Then you can not attain 29v on that. Go by the chart for correct voltage.

ewizard1:
Then you can not attain 29v on that. Go by the chart for correct voltage.

I just checked the resting state now

It is 26.4V

JaySterling:
I just checked now being 7:15pm

The current is 0 amp and the battery voltage is displayed as 26.4

So can I say it is fully charged ?

Yes, that's your actual full battery voltage.

JaySterling:
I just checked now being 7:15pm

The current is 0 amp and the battery voltage is displayed as 26.4

So can I say it is fully charged ?

yeah, highly likely ur batt is full, however is your inverter off?..that voltage is a lil too high for a resting battery voltage. @ 7.15pm, i expect to see 13v and below especially if batts are connected to inverter.
you mentioned hving a 55inch tv, what is the consumption of that tv?

send a pic of the battery specs, where float and absorb voltage settings are written, i have a hunch, your charge controller may be set wrongly to charge your batts with higher voltage than the batt needs, this will end up frying/killing the battery under 6months
even LONG batter with 14.4v to 15v absrob and 13.5v to 13.8v float voltage quickly drops to 13.1v/13v resting voltage and dips to 12.8v when 5kva inverter is turned on

earthrealm:
yeah, highly likely ur batt is full, however is your inverter off?..that voltage is a lil too high for a resting battery voltage. @ 7.15pm, i expect to see 13v and below especially if batts are connected to inverter.
you mentioned hving a 55inch tv, what is the consumption of that tv?

send a pic of the battery specs, where float and absorb voltage settings are written, i have a hunch, your charge controller may be set wrongly to charge your batts with higher voltage than the batt needs, this will end up frying/killing the battery under 6months
even LONG batter with 14.4v to 15v absrob and 13.5v to 13.8v float voltage quickly drops to 13.1v/13v resting voltage and dips to 12.8v when 5kva inverter is turned on

My inverter was off when I took the picture, but now it’s On and in use.

*Please where do I see the float and absorb voltage settings

There's a lot of battery/charging talk here

so could someone enlighten me on the feasibility of charging a car battery with the 12V points from a generator?

i didn't start my car for a week and discovered the battery was completely dead.

its a shock as the said battery is just 4 months old

anyway someone alerted me to the 12V output from the generator so i checked and it seems the generator should be be able to do 8Amps via the 12V output.

said battery is 75Amps


will it work? and is it advisable

earthrealm:
yeah, highly likely ur batt is full, however is your inverter off?..that voltage is a lil too high for a resting battery voltage. @ 7.15pm, i expect to see 13v and below especially if batts are connected to inverter.
you mentioned hving a 55inch tv, what is the consumption of that tv?

send a pic of the battery specs, where float and absorb voltage settings are written, i have a hunch, your charge controller may be set wrongly to charge your batts with higher voltage than the batt needs, this will end up frying/killing the battery under 6months
even LONG batter with 14.4v to 15v absrob and 13.5v to 13.8v float voltage quickly drops to 13.1v/13v resting voltage and dips to 12.8v when 5kva inverter is turned on

My setup is a 24V bank

12V x 2

Isn’t 13V too low to be the rested Voltage

Isn’t it supposed to be around 25 point something as per this chart

JaySterling:
My setup is a 24V bank

12V x 2

Isn’t 13V too low to be the rested Voltage

Isn’t it supposed to be around 25 point something as per this chart

multiply by 2, for 24v inverter, 3 for 36v inverter...its self explanatory in the chart. by 13v, i t shud be 26v for a 24v setup...just as you have.
now with the inverter turned on, no load...whats the voltage, then turn on the load and also state the voltage.. from the chart you can see 100% is 25.6v or so for 24v system..this translates to 12.8v per battery
the battery specs is written on the body of the battery..examine ur battery well

@AshipaEk0 yes, you can use your gen charging point to put some juice into the battery, since it outputs 8amps..leave the battery for upto 5hrs...so it can get at least 40amps.

your car may likely have a parasitic drain, if battery dies in just 1 week.
ie if you are sure the battery is good in the first place.

you may consider getting a compact 10w or 15w car solar panel, you simply place on your dash board and it keeps your battery topped up and in good health

JaySterling:
My setup is a 24V bank

12V x 2

Isn’t 13V too low to be the rested Voltage

Isn’t it supposed to be around 25 point something as per this chart

Where did you see 13v? You should focus on the 24v column

ewizard1:
Where did you see 13v? You should focus on the 24v column

I was responding to someone who said my resting voltage should be 13v

JaySterling:
I was responding to someone who said my resting voltage should be 13v

What is your battery capacity? 200ah times 2?

tipzy001:
What is your battery capacity? 200ah times 2?

Yes, correct

JaySterling:
I was responding to someone who said my resting voltage should be 13v

Yes, you are correct.
At fully Charged, I get a over 26V too under No Load..

I don't know why people Take resting Voltages, when your Inverter only disconnect under Load.

For Me, I use Under Load Voltages and it's most accurate for me...

See below I started at fully charged about 25.7 V there about..
Now I have discharged 400wh approx 17% DOD on 2400Wh battery
Voltage still above 25.1, which tally to the Graph posted.

JaySterling:
The only appliances that were on was a 55 inches TV, one LED light, a celling fan and a small table top fridge

The inverter was on from 10AM in the morning to 4pm in the afternoon, then PHCN light was returned by 4pm till about 6pm, then after they took the light by 6pm, I switched to inverter again from 6pm, but it started beeping low battery by 11pm in the night

The loads on it was not much, only what I mentioned above. Tv, small fridge, one led light, and ceiling fan.

Meanwhile, solar panels was charging the system throughout the morning, afternoon and evening.

And when it started beeping low battery by 11pm, I checked the charge controller and it was showing BAT 22.5 V

And from what my installer said BAT 28.4 V means battery is fully charged

So if the charge controller was showing BAT 22.5 V, doesn’t that indicate I still got a lot of battery juice left

Hi,
Your battery capacity is small for those loads, you have just 24v 200ah battery capacity. And u ran 55'' tv, fan, table top fridge from 6 to 11pm, while the depleted battery was never fully charged the next day, y? U also ran this loads, or even much more during the day, when the battery should be enjoying a good recharge! Come o, what is your panel capacity slf, 700, 500 or 1000w?

Oshomo12:
Hi,
Your battery capacity is small for those loads, you have just 24v 200ah battery capacity. And u ran 55'' tv, fan, table top fridge from 6 to 11pm, while the depleted battery was never fully charged the next day, y? U also ran this loads, or even much more during the day, when the battery should be enjoying a good recharge! Come o, what is your panel capacity slf, 700, 500 or 1000w?

1,040 watts

Dam5reey:
Yes, you are correct.
At fully Charged, I get a over 26V too under No Load..

I don't know why people Take resting Voltages, when your Inverter only disconnect under Load.

For Me, I use Under Load Voltages and it's most accurate for me...

See below I started at fully charged about 25.7 V there about..
Now I have discharged 400wh approx 17% DOD on 2400Wh battery
Voltage still above 25.1, which tally to the Graph posted.

Nice display. Could you elaborate on how you hooked it up. I have 2 of such lying around.

@All, the screen of my 5yr old 4kva mustpower inverter just went blank.inverter works ok though.
Any tips on how to repair this?

You are lucky if you got 5 years use before any issues came up on the Mustpower.

Random control board {component} failures are the bane of the Mustpower, if it is not calibration issues for voltage and current, it would be board failure due to surge or cooling fan failure e.t.c

The power board side conversely is pretty rugged and can run large loads within its rating easily.

This range of inverter would be far better value than indian brands and more expensive premium options if only they made a more reliable control board.

If you take your inverter to Oshodi Arena, you can either have the board repaired or swapped out for a new one for like 35K all in. They will always test it for you there although no guarantee it will not fail again in 3 weeks or 3 months or 3 years.

Malevonent:
Nice display. Could you elaborate on how you hooked it up. I have 2 of such lying around.

@All, the screen of my 5yr old 4kva mustpower inverter just went blank.inverter works ok though.
Any tips on how to repair this?

NiyiOmoIyunade:
You are lucky if you gol

If you take your inverter to Oshodi Arena, you can either have the board repaired or swapped out for a new one for like 35K all in. They will always test it for you there although no guarantee it will not fail again in 3 weeks or 3 months or 3 years.

35k, wow..it has happened b4..and resolved by its3lf after a while.guess i will find a way of using external display like dam5reey
Does the board have a name. Let me search for it on aliexpress

Malevonent:
Nice display. Could you elaborate on how you hooked it up. I have 2 of such lying around.

The connection is quite Simple, I use 1 Shunt and Two meters.

I used speaker wires..

There are 4 ports on the meters, See the connection below:
Battery + goes directly to the Battery
Battery - goes to the Shunt where load is connected in my case inverter.
Shunt -/+ connect to the middle section of the Shunt on meter 1, then interchange on meter 2 to get Charge and discharge

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Malevonent:
35k, wow..it has happened b4..and resolved by its3lf after a while.guess i will find a way of using external display like dam5reey
Does the board have a name. Let me search for it on aliexpress

Mine is a 5kw 48v and days ago, it surged and showed me error 4 till date.
i started to think its my village people.
now there is lockdown, had to whip out a forgotten 12v inverter,
but the shit is a modified sine wave inverter and it gives me the annoying 'hummmmmmmmm' as if transformer dey inside my house.
cant run anything except light and dc fan, even sef, the changover time is worse, everywhere goes dark for like 2 secs
someone help me beg for the lockdown to be cancelled, so i can fix my lovely horsepower
have to replace the control board. i guess.

fogeg87963:
Mine is a 5kw 48v and days ago, it surged and showed me error 4 till date.
i started to think its my village people.
now there is lockdown, had to whip out a forgotten 12v inverter,
but the shit is a modified sine wave inverter and it gives me the annoying 'hummmmmmmmm' as if transformer dey inside my house.
cant run anything except light and dc fan, even sef, the changover time is worse, everywhere goes dark for like 2 secs
someone help me beg for the lockdown to be cancelled, so i can fix my lovely horsepower
have to replace the control board. i guess.

Nothing beats a portable small pure sinewave backup inverter. It comes in handy when the big guy fails, at least you won't be in darkness till the fix is gotten.

mctfopt:
Nothing beats a portable small pure sinewave backup inverter. It comes in handy when the big guy fails, at least you won't be in darkness till the fix is gotten.

yeah yeah, ASA this virus ish lets go of its grip, i'll replace the inverter with a premium brand, not saying they are not susceptible
to damage too, but at least, the chances are lower given the same conditions.
the other items in the circuit are american and they handled the surge like it was nothing.
the chinese guy just went kaput

fogeg87963:
yeah yeah, ASA this virus ish lets go of its grip, i'll replace the inverter with a premium brand, not saying they are not susceptible
to damage too, but at least, the chances are lower given the same conditions.
the other items in the circuit are american and they handled the surge like it was nothing.
the chinese guy just went kaput

seems you dont hqve a stabilizer?.
why not hook up a centrl stab for the whole house and call it a day.
i have a `15kva central stab, guess why my mustpower hasnt had any issue till date

Dam5reey:
The connection is quite Simple, I use 1 Shunt and Two meters.

I used speaker wires..

There are 4 ports on the meters, See the connection below:
Battery + goes directly to the Battery
Battery - goes to the Shunt where load is connected in my case inverter.
Shunt -/+ connect to the middle section of the Shunt on meter 1, then interchange on meter 2 to get Charge and discharge

thanks, will try and hook up mine, your explanation is straight forward

fogeg87963:
yeah yeah, ASA this virus ish lets go of its grip, i'll replace the inverter with a premium brand, not saying they are not susceptible
to damage too, but at least, the chances are lower given the same conditions.
the other items in the circuit are american and they handled the surge like it was nothing.
the chinese guy just went kaput

Sometimes the Chinese do try. Not all the times do they come up short in the business of quality. Eg a Chinese earbud I got sometime last year, was machine washed the other day. I had given up on it ever be ok. After sun-drying for some time it was good to go. I couldn't believe it. Lol.

Though quality is never second guessed from the Americans. Their insurance will make sure you deliver or go bankrupt

@n9jaboy this is for you. Tried to type this but the bots were angry