The present invention relates to a series charger with separate detection of batteries which includes a charging control device for converting the inputted AC power into DC power so as to charging four batteries in series connection. The charging control d...

A charger (2) has two or more separate charging ports (8, 10) to which two or more rechargeable batteries (5, 6) can be coupled, respectively. Current from a single current source (28) is allocated to the two or more separate charging ports (8, 10) so that...

An electric circuit (20) for equalizing voltages between serially arranged cells (2A-2H). The circuit is operable to generate AC voltages at amplitudes dependent on the DC voltages of the received cells. The AC voltages are all connected to an inductive co...

An accumulator power supply unit equalizing the voltage between terminals of the respective accumulator block (1) to be a predetermined value without being affected by different characteristics of the accumulator block (1) such as electric double layer cap...

An electronic device battery pack for a battery requiring cycling to prolong lifetime is divided into at least two parallel cells for which the charging state is automatically maintained. When external power is available and one or more cells is substantia...

The circuit samples the voltage on the accumulator terminals at intervals, and also monitors re-charging to follow battery status. The monitoring device includes a circuit (5) for periodically sampling the voltage on the terminals of each accumulator (2), ...

The battery comprises a series of modules (2) each containing a single cell (3) connected across the output side of an individual charging unit (4). The cells are also series connected, through separable connector blocks (5), those at the extreme ends bein...