Patent ID: 6956356
Filing Date: 2005-10-18
Classification: H01M,H02J,Y02E

Abstract:
1. An apparatus for controlling operation of a protection device for a battery pack when said battery pack is in a very low power state; said battery pack including a plurality of battery cells coupled together to present an output voltage; at least one selected safeguard provided by said protection device being disabled during said very low power state; the apparatus comprising at least one comparing unit coupled with at least one battery cell of said plurality of battery cells and coupled with said protection device; said at least one comparing unit comparing at least one battery signal level associated with said at least one battery cell with at least one first reference signal level; said at least one comparing unit generating a first alerting output signal when said at least one battery signal level achieves a predetermined relationship with said at least one first reference signal level; said protection device enabling at least one of said at least one selected safeguard in response to said first alerting output signal.