公开(公告)号：AU2125295A

公开(公告)日：1995-12-05

申请号：AU2125295

申请日：1995-03-14

Applicant: MOTOROLA INC

Inventor： KAMKE JAMES F

IPC: H01M10/34 ,  H01M10/44 ,  H02J7/00 ,  H01M10/46

Abstract: A battery charger (10) and associated method for maintaining the charge of a battery (12). The battery charger (10) has a processor (16), power supply (14) and power regulator (15). The battery charger (10) first applies a high current charge to the battery (12), which is terminated when the battery voltage or temperature reaches a defined limit. Then the battery charger (10) applies a low current charge (102) for a set period of time. Next, no charge is applied until the battery (12) cools to an ambient temperature. The ambient temperature is then measured using a thermistor (18) in the battery (12). If the ambient temperature is above a certain threshold no charge is applied for a wait period. If the ambient temperature is below the threshold the low current charge is applied for a the set period of time.

公开(公告)号：EP0799504A4

公开(公告)日：1998-11-11

申请号：EP95944306

申请日：1995-11-29

Applicant: MOTOROLA INC

Inventor： FERNANDEZ JOSE M ,  MEADOWS VERNON ,  GARRETT SCOTT M ,  LAM DAO N ,  KAMKE JAMES F

IPC: H01M10/42 ,  H01M10/48

CPC classification number: H01M10/48 ,  H01M10/486

Abstract: A battery system (400) for use with portable electronic products which includes protection circuitry for allowing the battery system to be safely recharged in a recharging system. The battery system (400) includes cells (401) and a plurality of controls including an overcharge protection circuit (433) for limiting the amount of current to the cells (401) by a charging network and a thermistor (415) and thermistor control (417) for controlling the state of the thermistor (415) to simulate a high temperature condition allowing the charging network to switch modes and accommodate battery system (400) which does not follow the charging regimen provided by charging system.