diff --git a/machines/common.lua b/machines/common.lua
index c502ac0..86bfe33 100644
--- a/machines/common.lua
+++ b/machines/common.lua
@@ -292,6 +292,16 @@ function industrialtest.internal.registerMachine(config)
 				shouldRerunTimer,shouldUpdateFormspec=config.activeOnTimer(pos,elapsed,meta,inv)
 			end
 
+			local def=minetest.registered_nodes[minetest.get_node(pos).name]
+			if def.groups and def.groups._industrialtest_hasPowerInput and not industrialtest.api.isFullyCharged(meta) then
+				local networks=industrialtest.api.isAttachedToNetwork(meta)
+				if networks then
+					for _,network in ipairs(networks) do
+						minetest.get_node_timer(network):start(industrialtest.updateDelay)
+					end
+				end
+			end
+
 			if shouldUpdateFormspec then
 				machine.updateFormspec(pos,config)
 			end