Lotsa runtime fixes

code/modules/modular_computers/hardware/battery_module.dm

@@ -12,6 +12,10 @@
 		battery = new battery_type(src)
 	..()
 
+/obj/item/computer_hardware/battery/Destroy()
+	. = ..()
+	QDEL_NULL(battery)
+
 /obj/item/computer_hardware/battery/try_insert(obj/item/I, mob/living/user = null)
 	if(!holder)
 		return FALSE
@@ -50,7 +54,6 @@
 				holder.shutdown_computer()
 
 		return TRUE
-	return FALSE
 
 
 
@@ -91,4 +94,4 @@
 	name = "nano battery"
 	desc = "A tiny power cell, commonly seen in low-end portable microcomputers."
 	icon_state = "cell_micro"
-	maxcharge = 300
+	maxcharge = 300