Patent ID: 6097174
Filing Date: 2000-08-01
Classification: H02J

Abstract:
A charging circuit for at least two batteries, comprising:at least two pairs of charging terminals, each of said pairs of charging terminals including a first charging terminal and a second charging terminal, said first and second charging terminals being arranged to engage respective positive and negative terminals of batteries inserted between the charging terminals for charging;a power supply for supplying charging currents to said charging terminals; anda respective voltage adjusting circuit connected between said first and second charging terminals of each of said pairs of charging terminals, said voltage adjusting circuit causing said charging currents to vary for each pair of charging terminals depending on electric capacities of the individual batteries inserted between the terminals,thereby permitting individually batteries to be individually inserted and removed at random without regard to battery capacity, without requiring the batteries to be first be discharged for simultaneous charging, and without affecting charging of other batteries by the charging circuit.