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BQ34Z100 for more than 16 cells

Other Parts Discussed in Thread: BQ34Z100, BQ77910A

Hi,

Question regarding Fuel Gauge fir 20S10P Li-Ion pack (74V, Idis=30, Ichg=10A, 22Ah):

To get SOC and SOH of the 20S10P pack, solution like BQ34Z100 would be preferred,  but it is limited to 16 cells, due to max register value of 65535mV. Could this be workaround e.g. by setting some scaling factor and then correct it at the host side (of course losing some accuracy)? Or maybe use two chips, one for lower 10 and second for upper 10 (assure level shifts like for stacked BQ77910A etc.) and then also evaluate total SOH and SOC from two partial values at the host side?

Lukasz