Patent ID: 9364626
Filing Date: 2016-06-14
CPC Classification: A61M,H01M,Y02E

Claim Text:
1. A method for maintaining charge to a ventilation system using more than one battery pack assemblies, the method comprising: receiving a first cell status for a first battery pack assembly, wherein the first cell status for the first battery pack assembly is displayed on a first status indicator on an exposed exterior of the first battery pack assembly, and wherein the first cell status indicates information about the first battery pack assembly; detecting low voltage information in the first cell status; disconnecting the ventilation system from the first battery pack assembly; connecting the ventilation system to a second battery pack assembly; and displaying a second cell status for the second battery pack assembly on a second status indicator, wherein the second cell status indicates information about the second battery pack assembly, and wherein the second cell status indicates different battery information than the first cell status.