The charger will be used with a 10-cells NiMH pack, so 12V nominal.
HOWEVER, the pack may not be installed and the output voltage needs to be 12+ V because of the load (a PC) requirement.
The microcontroller that will configure the charger has a boot loader. I do not want the boot loader to configure the charger and there might be circumstances where there is no valid image of the application that will configure the charger and the load/PC will communicate with the boot loader to program the image.
So my question is if there is any problem I set the voltage divider on CELL_BATPRESZ pin to four cells so that the output voltage is in the 12V range. I have set the divider for three cells and the default voltage after power on is 9.3V so I suppose it will go to 12.4V when set for 4 cells.
Is there any problem with this setup when the battery is installed? I suppose there is not as once the application runs, it will configure the charger appropriately for the pack (if it is detected) and only after that it will enable charging if necessary. However, I would like to make sure I have the correct understanding of how it works and it is sufficient for my system to work.
Thank you
