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Question about charge battey measurement

Hi,
I shound measure charge battery with a microcontroller, but i have no
idea how can i do it...any link,book, data-sheet, suggestion?
Thanks
 
S

Sylvia Else

Jan 1, 1970
0
Hi,
I shound measure charge battery with a microcontroller, but i have no
idea how can i do it...any link,book, data-sheet, suggestion?
Thanks

What kind of battery?

Sylvia.
 
E

Eeyore

Jan 1, 1970
0
Hi,
I shound measure charge battery with a microcontroller, but i have no
idea how can i do it...any link,book, data-sheet, suggestion?

Do you mean 'state of charge' or to control the charge rate for example
? Your question makes no sense as it stands.

If you don't already know how to use a microcontroller you've a big task
ahead of you.

Graham
 
N

Nico Coesel

Jan 1, 1970
0
Hi,
I shound measure charge battery with a microcontroller, but i have no
idea how can i do it...any link,book, data-sheet, suggestion?
Thanks

Read the datasheet that comes with the battery. As a general rule of
thumb: the faster you want to charge, the more difficult it will be.
The problem is that you can't really measure the amount of energy left
in a battery. The voltage across a battery will vary because of the
charge, temperature, current and probably the direction of the wind.
 
D

David L. Jones

Jan 1, 1970
0
Nico said:
Read the datasheet that comes with the battery. As a general rule of
thumb: the faster you want to charge, the more difficult it will be.
The problem is that you can't really measure the amount of energy left
in a battery.

You can to a reasonable degree of accuracy if you use one of the many "fuel
gauge" battery charge logging chips available.

Dave.
 
J

John Nagle

Jan 1, 1970
0
Sylvia said:
What kind of battery?

Sylvia.

Yes. Measuring state of charge, and battery charging, varies
hugely with the type of battery. It's complicated, and tied to
battery chemistry. Unloaded voltage isn't very helpful.
What are you trying to do?

John Nagle
 
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