Patent ID: 9567835
Date: 2017-02-14
CPC Classifications: E21B,H02J

Claim:
1. A battery management system for use in a downhole drilling application, the battery management system comprising: (a) a power bus; (b) pairs of battery terminals, wherein each of the battery terminals is for connecting to a battery; (c) switching circuitry operable to electrically connect the power bus to and to disconnect the power bus from any one or more of the pairs of battery terminals electrically connected in parallel; (d) data collection circuitry operable to obtain battery parameters of batteries connected to the pairs of battery terminals; (e) a controller operable to control the switching circuitry and to receive the battery parameters from the data collection circuitry; and (f) a control line communicatively connecting the controller to the switching circuitry and a data line, distinct from the control line, communicatively connecting the controller to the data collection circuitry.