diff --git a/services/inputflinger/include/InputReaderBase.h b/services/inputflinger/include/InputReaderBase.h
index 77c9142..88aaa9d 100644
--- a/services/inputflinger/include/InputReaderBase.h
+++ b/services/inputflinger/include/InputReaderBase.h
@@ -114,6 +114,8 @@
     virtual std::optional<int32_t> getBatteryCapacity(int32_t deviceId) = 0;
     /* Get battery status of a particular input device. */
     virtual std::optional<int32_t> getBatteryStatus(int32_t deviceId) = 0;
+    /* Get the device path for the battery of an input device. */
+    virtual std::optional<std::string> getBatteryDevicePath(int32_t deviceId) = 0;
 
     virtual std::vector<InputDeviceLightInfo> getLights(int32_t deviceId) = 0;