The battery has the inherent problem of not being able to communicate with the user. Neither weight, colour, nor size provides an indication of the battery's state-of-charge and state-of-health. The user is at the mercy of the battery
Electrical energy from non-rechargeable (primary) batteries is very expensive, and many organisations are switching to rechargeable (secondary) batteries. This article examines the advantages, limitations and economics of primary and secondary batteries
STMicroelectronics has introduced a generation of chip-scale packages for power integrated circuits as well as six n-channel MOSFETs that take advantage of the new package to reduce size and weight while boosting thermal and electrical performance.