frebor:


Seriously doubt compatibility with lithium, a quick Google search says it's not.

However, max VoC is 50V so a single high wattage panel with a VoC under 50V is perfect.

It has editable settings sir, penuelseun used it in his setup years back. And i also heard that using 3*150w panels will be efficient to using a single 400w panels i don't know how true is these. And in case i decide to use a single 600w solar panel as you suggested earlier, how long will it take to get my battery to full? sorry for the too much questions 🙏

ksmart027:

It has editable settings sir, penuelseun used it in his setup years back. And i also heard that using 3*150w panels will be efficient to using a single 400w panels i don't know how true is these. And in case i decide to use a single 600w solar panel as you suggested earlier, how long will it take to get my battery to full? sorry for the too much questions 🙏

This thing na maths, na the one wey pay you go do. If you need to charge a 100ah battery, assuming there's 5 hours of sunlight, you need 240W.

Quality: You'll get a tier 1 panel with high watts, unlikely with smaller panels. This will affect the maximum power the panels can deliver.

Cost: how much is 3 panels vs 1 Panel. Choose most cost effective.

Power - 3 panels
in parallel - small voltage * big current
in series - high voltage * small current

1 panel - high voltage * small current.

Then you choose the one that won't exceed the input characteristics of your charge controller.

frebor:


This thing na maths, na the one wey pay you go do. If you need to charge a 100ah battery, assuming there's 5 hours of sunlight, you need 240W.

Quality: You'll get a tier 1 panel with high watts, unlikely with smaller panels. This will affect the maximum power the panels can deliver.

Cost: how much is 3 panels vs 1 Panel. Choose most cost effective.

Power - 3 panels
in parallel - small voltage * big current
in series - high voltage * small current

1 panel - high voltage * small current.

Then you choose the one that won't exceed the input characteristics of your charge controller.

Quick question as 30a charge controller only allows 330w for 12v battery, if someone puts a 600w solar panel array would it spoil the charge controller if the input settings of the charge controller is not exceeded??

eghos12:

Quick question as 30a charge controller only allows 330w for 12v battery, if someone puts a 600w solar panel array would it spoil the charge controller if the input settings of the charge controller is not exceeded??

The 600 watt is the max output in ideal (perfect) situation: irradiation, inclination, temperature and shading.

You won't usually get 600W, which also depends if you're using a MPPT or PWM controller, so it should be safe as long as the input specs are not exceeded.

eghos12:

Quick question as 30a charge controller only allows 330w for 12v battery, if someone puts a 600w solar panel array would it spoil the charge controller if the input settings of the charge controller is not exceeded??

You are good to go if you are using 150w panels with the controller, a single 600w panel will be a waste as your controller is pwm, an mppt controller will be your best option if you want to get upwards of 250w panels. You can use the controller with lifepo4 so far the charge voltage is editable to your battery specifications

Penuelseun:
You are good to go if you are using 150w panels with the controller, a single 600w panel will be a waste as your controller is pwm, an mppt controller will be your best option if you want to get upwards of 250w panels. You can use the controller with lifepo4 so far the charge voltage is editable to your battery specifications

Good evening boss, please is these charge controller compatible with lithium ion battery? Can i use 2*200w since my controller is pwm? thanks.

frebor:


This thing na maths, na the one wey pay you go do. If you need to charge a 100ah battery, assuming there's 5 hours of sunlight, you need 240W.

Quality: You'll get a tier 1 panel with high watts, unlikely with smaller panels. This will affect the maximum power the panels can deliver.

Cost: how much is 3 panels vs 1 Panel. Choose most cost effective.

Power - 3 panels
in parallel - small voltage * big current
in series - high voltage * small current

1 panel - high voltage * small current.

Then you choose the one that won't exceed the input characteristics of your charge controller.

Thanks boss for the explanation, I appreciate.

ksmart027:

Good evening boss, please is these charge controller compatible with lithium ion battery? Can i use 2*200w since my controller is pwm? thanks.

You can use with a 200w solar panels if the VOC is around 22v, it will work with a 7s 24v li-ion battery but not with a 3s 12v battery pack, can you share a picture of the solar panels sticker

Penuelseun:
You can use with a 200w solar panels if the VOC is around 22v, it will work with a 7s 24v li-ion battery but not with a 3s 12v battery pack, can you share a picture of the solar panels sticker

Unfortunately, i have not buy the panels yet. My battery is 3s 12v, i guess i will stick with 150w or 180w panels. Thanks sir.

ksmart027:

Unfortunately, i have not buy the panels yet. My battery is 3s 12v, i guess i will stick with 150w or 180w panels. Thanks sir.

Buy a buck converter and use with your cc.
You can buy that 300w buck converter max amps is 9A then use with pwm cc.

You will technically have a local man mppt

Obnoxious2001:

Buy a buck converter and use with your cc.
You can buy that 300w buck converter max amps is 9A then use with pwm cc.

You will technically have a local man mppt

Local man mppt?
You and terms enh?
Mppt is great any day any time.
One used Canadian 190w 10a 42v produced 9.9a max on a 3s 100ah lithium ion. Had to use a clamp meter to confirm the charging amp to double sure.

Obnoxious2001:

Buy a buck converter and use with your cc.
You can buy that 300w buck converter max amps is 9A then use with pwm cc.

You will technically have a local man mppt

If i get you correctly, with the buck converter, can i still use a single high watt panel? My major concern is space as i will prefer a single high watt panel to multiple low ones. Thanks boss.

ksmart027:

If i get you correctly, with the buck converter, can i still use a single high watt panel? My major concern is space as i will prefer a single high watt panel to multiple low ones. Thanks boss.

It depends on the VOC of the panel.

The usual xl4016 based 300W ( 8A ) buck converter can take up to 38V max out of the box or up to 45V max ( with some slight modifications on the buck converter).
Most online spec will indicate up to 60V out of the box, but when you investigate the surrounding electronic built on the converter, you'll quickly realize that it's false.

The usual 20A buck (can't recall the IC name) is more efficient as it incorporate FETs for both it forward and flyback cycle as against a FET and a diode used in the xl4016. It can take up to 42V out of the box, and these things are not built equal.. you'll most likely never get beyond 15A max from the best builds.

Combining a buck and pwm controller generally gives better result than using only a pwm controller (if set up properly). But not close to being an MPPT as the perfect load point will always change and no means of compensating for the drift.

So to answer your question, yes you can, but watch out for the VOC.

Regards.

Queed:


It depends on the VOC of the panel.

The usual xl4016 based 300W ( 8A ) buck converter can take up to 38V max out of the box or up to 45V max ( with some slight modifications on the buck converter).
Most online spec will indicate up to 60V out of the box, but when you investigate the surrounding electronic built on the converter, you'll quickly realize that it's false.

The usual 20A buck (can't recall the IC name) is more efficient as it incorporate FETs for both it forward and flyback cycle as against a FET and a diode used in the xl4016. It can take up to 42V out of the box, and these things are not built equal.. you'll most likely never get beyond 15A max from the best builds.

Combining a buck and pwm controller generally gives better result than using only a pwm controller (if set up properly). But not close to being an MPPT as the perfect load point will always change and no means of compensating for the drift.

So to answer your question, yes you can, but watch out for the VOC.

Regards.

My oga 🙌🏾🙌🏾🙌🏾.

Make I come learn work.
Which side you base?

I sent you message on WhatsApp some months back.

ksmart027:

If i get you correctly, with the buck converter, can i still use a single high watt panel? My major concern is space as i will prefer a single high watt panel to multiple low ones. Thanks boss.

Yes you can buy the buck max input must be higher than the solar panel VOC.

This way you can set a preset Voltage and possibly amps then channel to you cc then your cc does the monitoring.....


So buck+ pwm cc= local man mppt .

Obnoxious2001:


Yes you can buy the buck max input must be higher than the solar panel VOC.

This way you can set a preset Voltage and possibly amps then channel to you cc then your cc does the monitoring.....


So buck+ pwm cc= local man mppt .

On a serious note, is there a major difference between buck converter and pwm?

Both are pulse( pwm- pulse width modulation) in nature. They both push in current for some seconds and stop. The process continues again....

My 12v 3s 100ah for my indoor and outdoor powers power station just got completed this morning with.

100ah one way bms with passive balancer.
2a 3s active balancer.

Happy birthday 🎂 to me.

officialfestus:
My 12v 3s 100ah for my indoor and outdoor powers power station just got completed this morning with.

100ah one way bms with passive balancer.
2a 3s active balancer.

Happy birthday 🎂 to me.

Happy birthday bro, more money in your aza.

Queed:


It depends on the VOC of the panel.

The usual xl4016 based 300W ( 8A ) buck converter can take up to 38V max out of the box or up to 45V max ( with some slight modifications on the buck converter).
Most online spec will indicate up to 60V out of the box, but when you investigate the surrounding electronic built on the converter, you'll quickly realize that it's false.

The usual 20A buck (can't recall the IC name) is more efficient as it incorporate FETs for both it forward and flyback cycle as against a FET and a diode used in the xl4016. It can take up to 42V out of the box, and these things are not built equal.. you'll most likely never get beyond 15A max from the best builds.

Combining a buck and pwm controller generally gives better result than using only a pwm controller (if set up properly). But not close to being an MPPT as the perfect load point will always change and no means of compensating for the drift.

So to answer your question, yes you can, but watch out for the VOC.

Regards.

Thanks boss

Obnoxious2001:


Yes you can buy the buck max input must be higher than the solar panel VOC.

This way you can set a preset Voltage and possibly amps then channel to you cc then your cc does the monitoring.....


So buck+ pwm cc= local man mppt .

Thanks sir, i really appreciate

ksmart027:

Happy birthday bro, more money in your aza.

thanks boss.

dollarnaira:


On a serious note, is there a major difference between buck converter and pwm?

Both are pulse( pwm- pulse width modulation) in nature. They both push in current for some seconds and stop. The process continues again....

Buck converter, reduces voltage and convert to current. So this might have inductors to achieve the current conversion

Pwm cc uses pwm to cut/regulate voltage

Pwm Na as e come e dey give.

Obnoxious2001:

Buck converter, reduces voltage and convert to current. So this might have inductors to achieve the current conversion

Pwm cc uses pwm to cut/regulate voltage

Pwm Na as e come e dey give.

I get you but am talking about how they push in current.

Queed:


It depends on the VOC of the panel.

The usual xl4016 based 300W ( 8A ) buck converter can take up to 38V max out of the box or up to 45V max ( with some slight modifications on the buck converter).
Most online spec will indicate up to 60V out of the box, but when you investigate the surrounding electronic built on the converter, you'll quickly realize that it's false.

The usual 20A buck (can't recall the IC name) is more efficient as it incorporate FETs for both it forward and flyback cycle as against a FET and a diode used in the xl4016. It can take up to 42V out of the box, and these things are not built equal.. you'll most likely never get beyond 15A max from the best builds.

Combining a buck and pwm controller generally gives better result than using only a pwm controller (if set up properly). But not close to being an MPPT as the perfect load point will always change and no means of compensating for the drift.

So to answer your question, yes you can, but watch out for the VOC.

Regards.

😊 I like when I read posts from informed minds. You really understand how buck and mppt controllers work.

I have a conceived a way of making a normal PV to buck converter work and hunt for the MPPT point. Theoretically and maybe partially practical since I have tested the idea partially. Unfortunately I no de get time these days to play with electronic equipments as I like.

tetralogyfallot:
see the capacity of some of my cells

Where can one get these capacity testers? Are they rugged?

Trippledots:


Where can one get these capacity testers? Are they rugged?

u can order them sir, they are super rugged!

officialfestus:
My 12v 3s 100ah for my indoor and outdoor powers power station just got completed this morning with.

100ah one way bms with passive balancer.
2a 3s active balancer.

Happy birthday 🎂 to me.

Happy Birthday Bro.

Personally, I strongly recommend "Active Balancer" for builds as much as 100Ah.

ewizard1:


Happy Birthday Bro.

Personally, I strongly recommend "Active Balancer" for builds as much as 100Ah.

thanks boss.
I installed a 2a active balancer on it.

officialfestus:
thanks boss.
I installed a 2a active balancer on it.

GOOD AFTERNOON OGA WHY 2A BALANCER FOR AN 100ah 12v battery

capnies:


GOOD AFTERNOON OGA WHY 2A BALANCER FOR AN 100ah 12v battery

Too small or big?

dollarnaira:


Too small or big?

I FEEL ITS TOO SMALL CONSIDERING THE ah OF THE BATTERY EVEN THOUGH I KNOW NOTHING ABOUT BALANCERS

Trippledots:


😊 I like when I read posts from informed minds. You really understand how buck and mppt controllers work.

I have a conceived a way of making a normal PV to buck converter work and hunt for the MPPT point. Theoretically and maybe partially practical since I have tested the idea partially. Unfortunately I no de get time these days to play with electronic equipments as I like.

Very possible, in fact I have built many of such system.. It a matter of writing code that will searching for that sweet spot and hanging around there for a while.