An ROV comprising a topside (12), a fish (10) and an umbilical cable (14) for connecting the topside (12) and the fish (10) together. The fish (10) is adapted to be powered by an onboard battery (52) inductively coupled to the fish (10). The cable (14) is ...

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...