diff --git a/lignumis/prototypes/integrations/vanilla.lua b/lignumis/prototypes/integrations/vanilla.lua
index 63ff70f..dd7af70 100644
--- a/lignumis/prototypes/integrations/vanilla.lua
+++ b/lignumis/prototypes/integrations/vanilla.lua
@@ -224,6 +224,7 @@ robots_speed_technology_3.unit = {
     ingredients = { { "automation-science-pack", 1 }, { "logistic-science-pack", 1 }, { "chemical-science-pack", 1 } },
     time = 30
 }
+robots_speed_technology_3.upgrade = false
 
 local robots_speed_technology_4 = data.raw.technology["worker-robots-speed-4"]
 robots_speed_technology_4.prerequisites = { "worker-robots-speed-3", "utility-science-pack" }
@@ -365,4 +366,5 @@ set_default_weight("fast-transport-belt", 100)
 set_default_weight("fast-underground-belt", 50)
 set_default_weight("fast-splitter", 50)
 set_default_weight("steel-plate", 400)
-set_default_weight("steam-turbine", 10)
\ No newline at end of file
+set_default_weight("steam-turbine", 10)
+set_default_weight("battery", 400)
\ No newline at end of file