Patent ID: 9707854
Date: 2017-07-18
CPC Classifications: B60L,H01M,H02J,Y02E,Y02T

Claim:
1. A battery system, comprising: a base battery pack; a container having the base battery pack therein, the container configured to receive a boost battery pack, wherein the container can hold the base battery pack and the boost battery pack; a coupling operable to provide electric power from the base battery pack alone or from the base battery pack in combination with the boost battery pack, wherein the container and the base battery pack are configured to be field upgradable by addition of the boost battery pack; and a battery management system configured to provide a first electrical power from the base battery pack to an electric or hybrid vehicle, the first electrical power sufficient to propel the electric or hybrid vehicle to a first distance range, the battery management system configured to detect degradation of the base battery pack causing the first distance range to drop below a threshold value, and the battery management system configured to provide a second electrical power from the base battery pack and the boost battery pack to the electric or hybrid vehicle, the second electrical power sufficient to propel the electric or hybrid vehicle to a second distance range that is greater than the threshold value.