Machinery: Always use update_use_power()

code/modules/mob/living/silicon/ai/ai.dm

@@ -297,7 +297,7 @@ var/list/ai_verbs_default = list(
 /obj/machinery/ai_powersupply
 	name="Power Supply"
 	active_power_usage=50000 // Station AIs use significant amounts of power. This, when combined with charged SMES should mean AI lasts for 1hr without external power.
-	use_power = 2
+	use_power = USE_POWER_ACTIVE
 	power_channel = EQUIP
 	var/mob/living/silicon/ai/powered_ai = null
 	invisibility = 100
@@ -325,14 +325,14 @@ var/list/ai_verbs_default = list(
 		qdel(src)
 		return
 	if(powered_ai.APU_power)
-		use_power = 0
+		update_use_power(USE_POWER_OFF)
 		return
 	if(!powered_ai.anchored)
 		loc = powered_ai.loc
-		use_power = 0
+		update_use_power(USE_POWER_OFF)
 		use_power(50000) // Less optimalised but only called if AI is unwrenched. This prevents usage of wrenching as method to keep AI operational without power. Intellicard is for that.
 	if(powered_ai.anchored)
-		use_power = 2
+		update_use_power(USE_POWER_ACTIVE)
 
 /mob/living/silicon/ai/proc/pick_icon()
 	set category = "AI Settings"

code/modules/mob/living/silicon/robot/drone/drone_manufacturer.dm

@@ -11,7 +11,7 @@
 
 	density = 1
 	anchored = 1
-	use_power = 1
+	use_power = USE_POWER_IDLE
 	idle_power_usage = 20
 	active_power_usage = 5000