| My thinking. |
|---|
I am making a battery supply for a device so that it will be portable. While plugged in I am going trickle charge the batteries.
Here are the thinking problems.
let us say I have 1 battery, and it has 1.5v, and 1000mah (just for easy calculations). To charge it, I will charge it at 1/10th the power rating. So, a discharged bat will be at 0.5v. the difference is 1 volt, so the math will go like this.
1v/100=10ohm resistor.
For safe current limiting, I would have a 10-ohm resistor in the place. I have done this before and it works (This is very simplified as there are diodes etc. in the circuit in order to make the system work). |
Now comes the problem. if I have 4 batteries in series to increase the voltage, will the "mah" be the same 1000mah, or will it now be 4000mah?
And the same thing if the same 4 batteries are in parallel. what will the calculations be then?
