Battery voltage monitoring for use on 16F1825

[longpole001]

yes going to some online voltage divider calculators using 22k to Voltage supply and 15K to ground joined at the Pch gate will give a range of 1.5v - 2.8V when Vsupply gives 3.8V - 7v input , this is with no Resistance load calculation of both the pic i/0 pin and fet worked out but in practice will play and measure.

I think this should work after i sort out timing of the sample and when to input / output

any other things i should consider ???