Re: Battery monitor IC
Yes! For notebook battery include 4 series batteries. Some the battery monitor IC (it's called Gas Gauge IC) monitor 4 voltages V1, V2, V3 and V4 about every 0.5sec. They include internal resistor divider to adjust high battery voltages to the input range of internal ADC. They also control current and include internal temperature sensor. Interface to notebook SMBus.
Our company produce such kind IC. But the fact is that it is impossible to buy it if you are not a battery manufacturer. Our company deliver these devices only to battery manufacturer.