Batteries for laptops have designed within them integrated circuits that insure that the deliverance of reliable power is properly managed. Without these power management integrated circuits even fine tuned handhelds will exhibit problems such as over-voltage, and under-voltage conditions. At its most basic level an integrated circuit in general is a miniaturized electronic circuit. An electrical circuit is a network that has a closed loop, giving a return path for current.
For batteries the use of integrated circuits with the goal of power management is integrated battery management which include voltage regulation and charging functions. Read the rest of this entry »