LTC3337: Nanopower Battery SoH Monitor & Precision Coulomb Counter

Analog Devices' LTC3337 is the lowest IQ SoH (state of health) monitor and precision coulomb counter with infinite dynamic range. It is accurate across all load profiles and measures all important state of health variables (Q, V, Z, T). The LTC3337 is battery-friendly by presenting the battery with a load profile that allows it to deliver its maximum capacity, independent of the actual load.