Researchers at the Queensland University of Technology have added another hybrid supercapacitor design to the mix, promising the near-instant charge and discharge of a supercap with vastly ...

Dallas Semiconductor introduces the DS2715, a versatile NiMH, battery-pack charge controller. The DS2715 can be optimized for a variety of charging scenarios for either removable or embedded battery ...

And, NiMH batteries have a higher self-discharge rate than lithium-ion batteries, which means they can lose a more significant portion of their stored energy when not in use.

Tokyo – Matsushita Electric Industrial Co. Ltd. and Sanyo Mobile Energy Co. have separately developed new nickel metal hydride batteries that self-discharge far less than conventional NiMH batteries.