Hey, I've been making 1 portable solar device.That solar device needs 12v 6amp.why should I use solar charger controller for that device?if I should use solar charger controller means why I use battery? please tell me.i attached one example image.

 

hi Tom,
It all to do with mpp, [maximum power point], which tries to maximize the overall charge efficiency.
Check this link.

E
https://www.teachengineering.org/co...lesson03_fundamentalsarticle_v11_tedl_dwc.pdf

 

hi Tom,
It all to do with mpp, [maximum power point], which tries to maximize the overall charge efficiency.
Check this link.

E
https://www.teachengineering.org/co...lesson03_fundamentalsarticle_v11_tedl_dwc.pdf

Can I replace adapter instead of battery ?

 

hi T.
If I understand your post correctly, if you remove the battery, every time the Sun fails to shine on the Solar panel, your Load will get no power.?
E

 

hi T.
If I understand your post correctly, if you remove the battery, every time the Sun fails to shine on the Solar panel, your Load will get no power.?
E

Yep, that's my doubt.

 

hi T,
The purpose of the battery is to store power while the Sun shines on the panel, and then deliver power to the load when there is no Sunshine.
E

 

hi T.
If I understand your post correctly, if you remove the battery, every time the Sun fails to shine on the Solar panel, your Load will get no power.?
E

I posted one image,can I connect adapter instead of battery(position) will it works ?

 

Hi T,
The power required by the load determines the AHr capacity of the battery and the Solar panel power output required to charge the battery and the load.
E

 

hi T,
The purpose of the battery is to store power while the Sun shines on the panel, and then deliver power to the load when there is no Sunshine.
E

I got it thanks for your information .it really helps me a lot...

 

hi T,
I don't understand what is the 'adaptor'?
E

 

hi T,
I don't understand what is the 'adaptor'?
E

I mean it is the device which converts ac to dc like a phone charger...

 

hi T,
The adaptor if it has an AC input and an DC output is not compatible with the DC from the Solar panel.
E

Update:
Look at these options.
https://www.google.com/search?client=firefox-b-d&q=solar+phone+charger+walmart

 

hi T,
I don't understand what is the 'adaptor'?
E

I mean it is the device which converts ac to dc like a phone charger

hi T,
The adaptor if it has an AC input and an DC output is not compatible with the DC from the Solar panel.
E

Update:
Look at these options.
https://www.google.com/search?client=firefox-b-d&q=solar+phone+charger+walmart

I had in my mind that the adapter can connect with 240v ac in plug point and it's pin connects with solar charger controller where the batter(position) is connected

 

You could connect the solar panel and the adaptor together by using two diodes, so that when the sun shines the solar panel powers the load, and when it doesn't the adaptor powers the load.
Of course, when the sun doesn't shine, you have to buy energy from the grid, but you don't have to buy a battery!

 

You could connect the solar panel and the adaptor together by using two diodes, so that when the sun shines the solar panel powers the load, and when it doesn't the adaptor powers the load.
Of course, when the sun doesn't shine, you have to buy energy from the grid, but you don't have to buy a battery!

In 2 diodes in 2 terminal in adaptor? should I connect?

 

Diode #1. Anode to solar panel, cathode to positive terminal of load.
Diode #2. Anode to adaptor, cathode to positive terminal of load.
Join negative terminals of solar panel, adaptor and load together.

But first, make sure that the load with withstand the OPEN CIRCUIT VOLTAGE of the solar panel.

 

You could connect the solar panel and the adaptor together by using two diodes, so that when the sun shines the solar panel powers the load, and when it doesn't the adaptor powers the load.
Of course, when the sun doesn't shine, you have to buy energy from the grid, but you don't have to buy a battery!

But I need solar charger controller though....

 

But I need solar charger controller though....

what for? You're not charging anything.

 

S

what for? You're not charging anything.

Yes, you're right!

 

Then

what for? You're not charging anything.

But in that image which I had posted they connect solar charger controller.they too didn't charge anything they just power a load.then why they use solar charger controller?