19-5223; Rev 1; 4/10 www.
DataSheet4U.
com Stand-Alone OCV-Based Fuel Gauge General Description The DS2786B estimates available capacity for rechargeable Li-ion (Li+) and Li+ polymer batteries based on the cell voltage in the open-circuit state following a relaxation period.
The open-circuit voltage (OCV) is used to determine relative cell capacity based on a lookup table stored in the IC.
This capability makes accurate capacity information available immediately after a battery pack is inserted.
During periods of moderate to high rate discharging, which preclude OCV measurements, the DS2786B uses coulomb counting as a secondary means of estimating relative capacity.
Remaining capacity is rep...

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