Patent ID: 8362749

Claim:
A rechargeable battery exchanging method, comprising: discharging a nickel metal hydride (NiMH) rechargeable battery derived from a vehicle assembled battery used as a power source for a vehicle until the nickel metal hydride rechargeable battery reaches a fully discharged state; preventing the nickel metal hydride rechargeable battery in which memory effect accumulation is not reduced from being used for rebuilding a regenerated vehicle assembled battery by storing the nickel metal hydride rechargeable battery that is in the fully discharged state in a storage region for three hours or longer from when the nickel metal hydride rechargeable battery reaches the fully discharged state to prepare a reusable nickel metal hydride rechargeable battery in which memory effect accumulation is reduced; and rebuilding a regenerated vehicle assembled battery to be used as a power source for a vehicle by combining the stored reusable nickel metal hydride rechargeable battery derived from the vehicle assembled battery with a stored reusable nickel metal hydride rechargeable battery derived from other assembled batteries or combining the stored reusable nickel metal hydride rechargeable battery derived from the vehicle assembled battery with a fresh nickel metal hydride rechargeable battery.