Patent ID: 9640843
Date: 2017-05-02
CPC Classifications: B60L,H01M,H02J,Y02E,Y02T

Claim:
1. An apparatus comprising: isolation circuitry including multiple semiconductor switches arranged electrically in parallel to isolate a plurality of battery cells when connected to a battery containing the plurality of battery cells, wherein the battery is capable of providing high levels of current; and a microcontroller operatively coupled with to the isolation circuitry, wherein the battery cells are isolated from an electrical system to which the battery is connected when the microcontroller switches off the multiple semiconductor switches, wherein the microcontroller is programmed to turn off the multiple semiconductor switches when a high threshold current comprising at least 2,000 amperes is sensed over a short period of time, such that amperage levels required to start a vehicle are not misinterpreted as an excess of current indicative of a current surge.