Which chip to choose for monitoring battery charging in a homemade device?

Question

Electronics

I collect my portable device in which there is a screen. I want to display the battery charge level on this screen. You can just take an ADC and a voltage divider, but it seems to me that this is not an entirely accurate mechanism. I tried to find a chip for such tasks, but they are so motley, but it's hard to understand what to choose. Can anyone suggest how to solve this problem.

Answer 1

Measuring voltage gives low accuracy, in order to understand how bad it is, I advise you to read the article https://www.compel.ru/lib/79630
There, by the way, there is a microcircuit for your task
. You also need to remember that either the battery must be non-removable, or the microcircuit must ALWAYS be in the battery (in the assembly)

Answer 2

on the screen it is necessary to display the percentage of the charge or what ?? what kind of battery, what voltages, write down the task technically correctly, because all the seers fled to rent.
any microcontroller with an ADC and write code to read data from the ADC and display it on the screen in the desired format.
I think there are also ready-made modules. pick up, buy and solder.

Answer 3

A simple ADC is not such a bad way, 3 gradations (max / med / min) can be obtained empirically, because with a microcircuit there is a great chance that charge control will be the most difficult element of your device.