Analog Devices has created a battery monitor for primary (non-rechargeable) cells that counts coulombs and can handle a pair of output supercapacitors. Called LTC3337, “the patented infinite dynamic range coulomb counter tallies all accumulated battery discharge,” boldly claimed ADI, Coulomb counter accuracy is constant down to no load.” However, Coulomb counting accuracy, according to the data ...

This story continues at Battery monitor for non-rechargeable cells charges supercapacitors too

Or just read more coverage at Electronics Weekly