Patent ID: 9412994
Filing Date: 2016-08-09
CPC Classification: H01M,H02H,H02J,Y02E

Claim Text:
1. A battery pack for driving an electrical device in a 12 volt to 120 volt operating system, said battery pack having a positive terminal and a negative terminal, comprising: a battery pack housing having at least a first portion and a mating second portion; at least one lithium-based rechargeable cell within said housing, each such cell having a positive pole and a negative pole; a circuit board within said housing configured to balance each individual cell within said housing, and having a cutoff function incorporated therein, said circuit board including a plurality of pairs of solid state switches with each pair of solid state switches connected in a parallel configuration to another pair of solid state switches, each switch having a source and a drain, the switches of a pair of solid state switches being configured such that either the drains of the switches are connected or the sources of the switches are connected; and said parallel configuration of the plurality of solid state switches being connected in series with said one or more cells between said positive and negative terminals of the battery pack.