Saipro:
All this talk about CCs, hybrids, spare boards and all ... I have a few clients with 24V 3kW Must inverters with bad chargers. Two with bad inverter sides on PowerStar 48V inverters (seem immune to charger going bad on account of using desulphators)

Anyone with spare boards and cost implications? Anyone knowing how to fix/recalibrate these devices?

Did you get closure on this, i have a faulty 4kva mustpower 48v transformer inverter.
The output flunctuates crazily especially when loaded upto 30% or during 200w fridge startup

Arena market Oshodi have both natively compatible and rigged up boards and parts.

The inverters just generally are not rugged as per the control circuitry. Very excellent earthing and surge protection are key if you wish them to live long

earthrealm:


Did you get closure on this, i have a faulty 4kva mustpower 48v transformer inverter.
The output flunctuates crazily especially when loaded upto 30% or during 200w fridge startup

Saipro:
All this talk about CCs, hybrids, spare boards and all ... I have a few clients with 24V 3kW Must inverters with bad chargers. Two with bad inverter sides on PowerStar 48V inverters (seem immune to charger going bad on account of using desulphators)

Anyone with spare boards and cost implications? Anyone knowing how to fix/recalibrate these devices?

earthrealm:


Whats the Voc of your pwm cc, its likely below 70v, if so.. you can only connect the 4 panels in parallel, hope the distance from panel to cc isnt far, you would need 16mm cable if so,

Why buy pwm , cc?
Makes no sense, buying pwm if your array is more than 600w, 100w and 150w panels are recommeded if its pwm that you have choosen to use, as most pwm have voc of 70v max, and such small wattage panels hv Voc of 22v, hence you can put 2 in series

The panels have been connected in parallel. My journey into the solar energy world has fully commenced.

Got a question guys & would want sincere answers.

Why is it that Solar charging is not usually as deeply suited for batteries like mains charging.

Maybe I'm not putting it well but make I break am down. Over the years I've used solar, started with LA & now lithium batteries, I found out batteries charged using solar alone run out faster than those charged with mains. These same batteries though have and fully reflect the battery SOC oo, it's not like something is amiss but they don't just tend to stay the length when being discharged.

Same narrative can be said between mains and gen charging. Anybody has a reason for why this is so?

Now let me blow your mind. Use solar charge your batteries all day and give it shikini 30mins - 1hr of mains to top it up in the night and see it last like say kilode. That is where my confusion lies.

essegis:
Got a question guys & would want sincere answers.

Why is it that Solar charging is not usually as deeply suited for batteries like mains charging.

Maybe I'm not putting it well but make I break am down. Over the years I've used solar, started with LA & now lithium batteries, I found out batteries charged using solar alone run out faster than those charged with mains. These same batteries though have and fully reflect the battery SOC oo, it's not like something is amiss but they don't just tend to stay the length when being discharged.

Same narrative can be said between mains and gen charging. Anybody has a reason for why this is so?

Now let me blow your mind. Use solar charge your batteries all day and give it shikini 30mins - 1hr of mains to top it up in the night and see it last like say kilode. That is where my confusion lies.

If you charge a 100AH battery to 100% full through either solar or grid, I believe you will get same discharge capacity. However assuming max charge rate set is the same, it could take more time to charge via solar than it will for grid, 2 factors comes to mind based on my observations:

1. Mains charging current will remain constant at a relatively lower voltage, however solar starts it's charging at higher voltage and if your bulk/float settings is not appropriately set then charge rate may suffer

2. Non stable nature of solar or gen(for some) charge current is also a factor

Good morning my family. please make I disturb you guys with this one. from your experience/usage which car battery better now from range 55 - 60 or so amps and price pls? Nagode.

idsolar:
Good morning my family. please make I disturb you guys with this one. from your experience/usage which car battery better now from range 55 - 60 or so amps and price pls? Nagode.

You want to use it for inverter?

Good morning all. I need a dc solar bore hole pump for installation in a 130ft depth bore hole. I have 8, 140watts panels to power it.
I need the dc solar pump and a capable installer for installation at a village near Iju, Otta Ogun state. Call 08181413710

Because of d love i have for my narialand family Wilmaria global enterprise will like to say tank you by doing a sales discount on Ritar 200ah 12v block battery which is sold for 120k but we will sell for 95k and we have only 20 left
Merry Christmas to everyone on dis trend
09013128166 what's app

eleojo23:


You want to use it for inverter?

my broda na for my car o. I am planning of changing it

wilmaria14:
Because of d love i have for my narialand family Wilmaria global enterprise will like to say tank you by doing a sales discount on Ritar 200ah 12v block battery which is sold for 120k but we will sell for 95k and we have only 20 left
Merry Christmas to everyone on dis trend
09013128166 what's app

How good are Ritar batteries generally? Are they in the league of NXT index and Fullriver?

eleojo23:


How good are Ritar batteries generally? Are they in the league of NXT index and Fullriver?

do your research boss and see dey are all on d same

idsolar:
Good morning my family. please make I disturb you guys with this one. from your experience/usage which car battery better now from range 55 - 60 or so amps and price pls? Nagode.

Just buy 75ah Made in Korea( Not KoreaTech) Jeje because even the 75ah is not up to not to now talk of 65ah and below. Note that type of car also determine. A Land river LR3 uses 100ah battery

Please house, How much is epever 60amp mppt charge controller in Nigeria

Thanks

I have heard this PHCN charges better and faster than Gen and Solar cannot charge batteries well soooo many times. My thoughts are as below;

It is all a question of the quality of the power supply. Think of PHCN as an effectively infinite power source. When PHCN supply is available you are able to run your loads (bypassed through the inverter) and charge the batteries at a constant current or constant voltage with no variations or dips. The PHCN supply is typically a quality sine wave with peaks and troughs well regulated and frequency at 50hz.

Most people's generators are relatively undersized vs the power demand on them and typically have poorly regulated outputs (frequency off spec and voltage dancing around under load). All these will affect the ability of an inverter to latch on and derive maximum power from the Gen. Use say a properly output regulated and oversized Gen e.g 80kva for a normal household that could manage a 15kva and you will see that your results are much thesame as when using PHCN to charge.

Solar charging is the most finicky of all, since the supply is usually limited, batteries are holding a constant current when all of a sudden, clouds or large loads come on and the available power for battery charging drops. To get grid like results from solar, you must GROSSLY OVERSIZE the panels relative to day time loads and battery charging requirements. If your need is 1kw for loads and 2kw over 5 hours for battery charging, you can't usually get by with a 3kw array - minimum PV size would be ~4kw and practically I would do ~6kw of PV to run combined 3kw of loads and battery charging. Even in this scenario, there are days when you would still need Gen or PHCN assist. The trick is to find the optimal point between PV size and occasional Mains/Gen assist.

In short, most people tend to try to do too much with too little PV and then get dissappointed when their design fails.

I have a 21kw array to run roughly 8kw of daytime loads and return 40kwh into my battery bank daily. Even so oversized, there are still days the PV cannot keep up with household load and battery charging demands and I need to invoke Gen support.

essegis:
Got a question guys & would want sincere answers.

Why is it that Solar charging is not usually as deeply suited for batteries like mains charging.

Maybe I'm not putting it well but make I break am down. Over the years I've used solar, started with LA & now lithium batteries, I found out batteries charged using solar alone run out faster than those charged with mains. These same batteries though have and fully reflect the battery SOC oo, it's not like something is amiss but they don't just tend to stay the length when being discharged.

Same narrative can be said between mains and gen charging. Anybody has a reason for why this is so?

Now let me blow your mind. Use solar charge your batteries all day and give it shikini 30mins - 1hr of mains to top it up in the night and see it last like say kilode. That is where my confusion lies.

omotoda:


Just buy 75ah Made in Korea( Not KoreaTech) Jeje because even the 75ah is not up to not to now talk of 65ah and below. Note that type of car also determine. A Land river LR3 uses 100ah battery

Thanks. Please how much is it going for now?

idsolar:


Thanks. Please how much is it going for now?

Depend on location,price range is between 24-25k for made in kirea

NiyiOmoIyunade:
This love for RE ehn.

I have been steadfastly resisting the urge to buy and try a different battery tech just for the heck of it.

Something new to enliven the soul.

NiyiOmoIyunade:
If your need is 1kw for loads and 2kw over 5 hours for battery charging, you can't usually get by with a 3kw array - minimum PV size would be ~4kw and practically I would do ~6kw of PV to run combined 3kw of loads and battery charging. Even in this scenario, there are days when you would still need Gen or PHCN assist. The trick is to find the optimal point between PV size and occasional Mains/Gen assist.

In short, most people tend to try to do too much with too little PV and then get dissappointed when their design fails.

I have a 21kw array to run roughly 8kw of daytime loads and return 40kwh into my battery bank daily. Even so oversized, there are still days the PV cannot keep up with household load and battery charging demands and I need to invoke Gen support.

To buttress OgaNiyi's position, your batteries have to be held on full charge (as indicated by your measuring instrument) for a fairly long time before full charging can be said to have been achieved. That your battery meter shows 100% charge for a few minutes before charging source is removed does not imply that the battery is truly already at 100%; that value needs to be sustained for a much longer period to get the true 100% into the battery. Sustained PHCN supply especially overnight as you @essegis said can provide that, so also can grossly oversized PV.

I had hitherto had a system with 4pcs 320w and 105ah/24v LFP on a 200w load and by 1pm the battery is already at 95% full (27.9v).

Three days back I updated ONLY one item in the setup: addition of an extra 120ah/24v LFP in parallel. The new battery (came fully charged) was connected when the existing battery was also fully charged. The backup was as expected only on the day after installation of the battery.

However since two days ago now, I have had challenge filling up the upgraded bank on the existing 1.28kw panel. The bank finds it hard to go beyond the 26.6v before the panels fall on the other side of the sun.

Now I'm thinking of adding an extra 1.28kw PV. Thankfully I've installed an extra redundant 48/60A MPPT also with its own DCB since about a month ago as part of the system. Not connected to any PV up till now but in parallel with the existing (similar) SCC.

idsolar:


Thanks. Please how much is it going for now?

Got a 75ah Korean Tech ("Made in Korea" was unavailable) 5 days ago for 18k. Dude started out at 23k but I haggled down to 18k and sold off to him the spent battery for 2k5.

So in all i spent 15k5

earthrealm:

Did you get closure on this, i have a faulty 4kva mustpower 48v transformer inverter.
The output flunctuates crazily especially when loaded upto 30% or during 200w fridge startup

Abandoned in my store. Using a smaller Victron for backup

essegis:
Got a question guys & would want sincere answers.

Why is it that Solar charging is not usually as deeply suited for batteries like mains charging.

Maybe I'm not putting it well but make I break am down. Over the years I've used solar, started with LA & now lithium batteries, I found out batteries charged using solar alone run out faster than those charged with mains. These same batteries though have and fully reflect the battery SOC oo, it's not like something is amiss but they don't just tend to stay the length when being discharged.

Same narrative can be said between mains and gen charging. Anybody has a reason for why this is so?

Now let me blow your mind. Use solar charge your batteries all day and give it shikini 30mins - 1hr of mains to top it up in the night and see it last like say kilode. That is where my confusion lies.

My experience is the reverse.
I have a significantly oversized array (almost 100% oversized for the current batteries). I have my 1.5HP sitting room AC, fridge freezer and 55" TV on right now. Batteries are on absorb. FLA set to absorb at 57.6V. Current input from PV is 1363W. Array nominal power is 3060W. CC CV charging is not an issue. Time is about 11:30am in Ilorin

Edit: this means I can hold this voltage for hours on most days. No need to ramp up absorb to 59.2V

NiyiOmoIyunade:
I have heard this PHCN charges better and faster than Gen and Solar cannot charge batteries well soooo many times. My thoughts are as below;

It is all a question of the quality of the power supply. Think of PHCN as an effectively infinite power source. When PHCN supply is available you are able to run your loads (bypassed through the inverter) and charge the batteries at a constant current or constant voltage with no variations or dips. The PHCN supply is typically a quality sine wave with peaks and troughs well regulated and frequency at 50hz.

Most people's generators are relatively undersized vs the power demand on them and typically have poorly regulated outputs (frequency off spec and voltage dancing around under load). All these will affect the ability of an inverter to latch on and derive maximum power from the Gen. Use say a properly output regulated and oversized Gen e.g 80kva for a normal household that could manage a 15kva and you will see that your results are much thesame as when using PHCN to charge.

Solar charging is the most finicky of all, since the supply is usually limited, batteries are holding a constant current when all of a sudden, clouds or large loads come on and the available power for battery charging drops. To get grid like results from solar, you must GROSSLY OVERSIZE the panels relative to day time loads and battery charging requirements. If your need is 1kw for loads and 2kw over 5 hours for battery charging, you can't usually get by with a 3kw array - minimum PV size would be ~4kw and practically I would do ~6kw of PV to run combined 3kw of loads and battery charging. Even in this scenario, there are days when you would still need Gen or PHCN assist. The trick is to find the optimal point between PV size and occasional Mains/Gen assist.

In short, most people tend to try to do too much with too little PV and then get dissappointed when their design fails.

I have a 21kw array to run roughly 8kw of daytime loads and return 40kwh into my battery bank daily. Even so oversized, there are still days the PV cannot keep up with household load and battery charging demands and I need to invoke Gen support.

I see you've done justice to it

omotoda:

Depend on location,price range is between 24-25k for made in kirea

Thank you

40A adjustable current and voltage (11v to 16v) LFP chargers available @40k

Can this charger charge a lead acid battery - go to a lower float voltage after a few hours on absorb?

ojeysky:
40A adjustable current and voltage (11v to 16v) LFP chargers available @40k

NiyiOmoIyunade:
I have heard this PHCN charges better and faster than Gen and Solar cannot charge batteries well soooo many times. My thoughts are as below;

It is all a question of the quality of the power supply. Think of PHCN as an effectively infinite power source. When PHCN supply is available you are able to run your loads (bypassed through the inverter) and charge the batteries at a constant current or constant voltage with no variations or dips. The PHCN supply is typically a quality sine wave with peaks and troughs well regulated and frequency at 50hz.

Most people's generators are relatively undersized vs the power demand on them and typically have poorly regulated outputs (frequency off spec and voltage dancing around under load). All these will affect the ability of an inverter to latch on and derive maximum power from the Gen. Use say a properly output regulated and oversized Gen e.g 80kva for a normal household that could manage a 15kva and you will see that your results are much thesame as when using PHCN to charge.

Solar charging is the most finicky of all, since the supply is usually limited, batteries are holding a constant current when all of a sudden, clouds or large loads come on and the available power for battery charging drops. To get grid like results from solar, you must GROSSLY OVERSIZE the panels relative to day time loads and battery charging requirements. If your need is 1kw for loads and 2kw over 5 hours for battery charging, you can't usually get by with a 3kw array - minimum PV size would be ~4kw and practically I would do ~6kw of PV to run combined 3kw of loads and battery charging. Even in this scenario, there are days when you would still need Gen or PHCN assist. The trick is to find the optimal point between PV size and occasional Mains/Gen assist.

In short, most people tend to try to do too much with too little PV and then get dissappointed when their design fails.

I have a 21kw array to run roughly 8kw of daytime loads and return 40kwh into my battery bank daily. Even so oversized, there are still days the PV cannot keep up with household load and battery charging demands and I need to invoke Gen support.

80kva gen. Bros, na hotel abi village we wan run ni? Anyway, I understand all what you're saying & invariably both you & Ojeysky agreed with me. Oversizing is not necessarily or realistically visible.

As for my present set up, I think I got it just right with sizing and charging capabilities. My present problem, after using today to rethink it could be attributed to the shifted solar path. My Victron that floats before 11 doesn't do it all day long these days. E go better.

NiyiOmoIyunade:
Can this charger charge a lead acid battery - go to a lower float voltage after a few hours on absorb?

No it can't, it's CC-CV Param

Ordinary small question wey I ask I got blocked. I start to dey look upandan like wetin happen to my Nairaland. This is the first time I am experiencing it sha.

E mean say I no go kuku complain my NEPA matter for here cos that one them go block me for 600yrs. Over 2wks now I never get light for house oo, all because I decided to be a model citizen and acquire my prepaid meter. Since then na one excuse or another, come tomorrow tomorrow. God dey sha oo. Na my money I dey use pursue people now to fit buy energy oo.

essegis:
Got a question guys & would want sincere answers.

Why is it that Solar charging is not usually as deeply suited for batteries like mains charging.

Maybe I'm not putting it well but make I break am down. Over the years I've used solar, started with LA & now lithium batteries, I found out batteries charged using solar alone run out faster than those charged with mains. These same batteries though have and fully reflect the battery SOC oo, it's not like something is amiss but they don't just tend to stay the length when being discharged.

Same narrative can be said between mains and gen charging. Anybody has a reason for why this is so?

Now let me blow your mind. Use solar charge your batteries all day and give it shikini 30mins - 1hr of mains to top it up in the night and see it last like say kilode. That is where my confusion lies.

back from another unecessary ban, see what i posted. this forum is annoying