diff --git a/control_msgs/CMakeLists.txt b/control_msgs/CMakeLists.txt
index 35b87d8..fe8d346 100644
--- a/control_msgs/CMakeLists.txt
+++ b/control_msgs/CMakeLists.txt
@@ -14,6 +14,7 @@ find_package(trajectory_msgs REQUIRED)
 
 set(msg_files
   msg/AdmittanceControllerState.msg
+  msg/BatteryStateArray.msg
   msg/CANopenState.msg
   msg/DynamicInterfaceGroupValues.msg
   msg/DynamicInterfaceValues.msg
diff --git a/control_msgs/msg/BatteryStateArray.msg b/control_msgs/msg/BatteryStateArray.msg
new file mode 100644
index 0000000..0d77041
--- /dev/null
+++ b/control_msgs/msg/BatteryStateArray.msg
@@ -0,0 +1,2 @@
+# This message publishes values for multiple batteries at once.
+sensor_msgs/BatteryState[] battery_states