u/spikerguy

Hello Geniuses,

I have been studying multiple components to reach at this stage where I was finally able to integration all these 3 use case together.

1. Battery Charger with power path. BQ24075.

2. Battery Monitor with soc using BQ27441.

3. Battery Indicator using HM1160. Just the voltage status when device is off. (sometimes what dell laptops used to have)

4. Battery protection from overcharge and over discharge.

Please share your feedback, while I have some points which I would like to understand.

1. Q2 is used for reverse polarity protection, is it correct and will it be affective ?

2. Hm1160 is be powered on for few seconds yo check battery voltage level so i used 100uf capacitor to keep it on until 47k resistor drains it.

3. Is it better to connect hm1160 vss to gnd from Q1 which is after battery protection or to -Batt for it to get direct current from the battery?

Thanks.