Fixes inducers not working on some stuff due to missing get_cell() checks

code/modules/modular_computers/computers/item/computer_power.dm

@@ -28,8 +28,7 @@
 
 /obj/item/modular_computer/get_cell()
 	var/obj/item/computer_hardware/battery/battery_module = all_components[MC_CELL]
-	if(battery_module && battery_module.battery)
-		return battery_module.battery
+	return battery_module?.get_cell()
 
 // Used in following function to reduce copypaste
 /obj/item/modular_computer/proc/power_failure()

code/modules/modular_computers/hardware/battery_module.dm

@@ -7,6 +7,9 @@
 	var/obj/item/stock_parts/cell/battery = null
 	device_type = MC_CELL
 
+/obj/item/computer_hardware/battery/get_cell()
+	return battery
+
 /obj/item/computer_hardware/battery/New(loc, battery_type = null)
 	if(battery_type)
 		battery = new battery_type(src)

code/modules/reagents/reagent_containers/maunamug.dm

@@ -15,6 +15,9 @@
 	. = ..()
 	cell = new /obj/item/stock_parts/cell(src)
 
+/obj/item/reagent_containers/glass/maunamug/get_cell()
+	return cell
+
 /obj/item/reagent_containers/glass/maunamug/examine(mob/user)
 	. = ..()
 	. += "<span class='notice'>The status display reads: Current temperature: <b>[reagents.chem_temp]K</b> Current Charge:[cell ? "[cell.charge / cell.maxcharge * 100]%" : "No cell found"].</span>"

code/modules/surgery/bodyparts/robot_bodyparts.dm

@@ -117,6 +117,8 @@
 	var/wired = FALSE
 	var/obj/item/stock_parts/cell/cell = null
 
+/obj/item/bodypart/chest/robot/get_cell()
+	return cell
 
 /obj/item/bodypart/chest/robot/handle_atom_del(atom/A)
 	if(A == cell)

code/modules/vehicles/motorized_wheelchair.dm

@@ -6,7 +6,7 @@
 	var/power_efficiency = 1
 	var/power_usage = 100
 	var/panel_open = FALSE
-	var/list/required_parts = list(/obj/item/stock_parts/manipulator, 
+	var/list/required_parts = list(/obj/item/stock_parts/manipulator,
 							/obj/item/stock_parts/manipulator,
 							/obj/item/stock_parts/capacitor)
 	var/obj/item/stock_parts/cell/power_cell
@@ -24,6 +24,10 @@
 	var/datum/component/riding/D = GetComponent(/datum/component/riding)
 	D.vehicle_move_delay = round(CONFIG_GET(number/movedelay/run_delay) * delay_multiplier) / speed
 
+
+/obj/vehicle/ridden/wheelchair/motorized/get_cell()
+	return power_cell
+
 /obj/vehicle/ridden/wheelchair/motorized/obj_destruction(damage_flag)
 	var/turf/T = get_turf(src)
 	for(var/atom/movable/A in contents)
@@ -42,7 +46,7 @@
 			canmove = FALSE
 			addtimer(VARSET_CALLBACK(src, canmove, TRUE), 20)
 			return FALSE
-		if(power_cell.charge < power_usage / max(power_efficiency, 1))			
+		if(power_cell.charge < power_usage / max(power_efficiency, 1))
 			to_chat(user, "<span class='warning'>The display on [src] blinks 'Out of Power'.</span>")
 			canmove = FALSE
 			addtimer(VARSET_CALLBACK(src, canmove, TRUE), 20)
@@ -74,7 +78,7 @@
 		to_chat(user, "<span class='notice'>You remove the power cell from [src].</span>")
 		return
 	return ..()
-	
+
 /obj/vehicle/ridden/wheelchair/motorized/attackby(obj/item/I, mob/user, params)
 	if(I.tool_behaviour == TOOL_SCREWDRIVER)
 		I.play_tool_sound(src)