diff --git a/prototypes/buildings/accumulator-mk01.lua b/prototypes/buildings/accumulator-mk01.lua
index 7e81c5e..f89903b 100644
--- a/prototypes/buildings/accumulator-mk01.lua
+++ b/prototypes/buildings/accumulator-mk01.lua
@@ -13,10 +13,14 @@ RECIPE {
     results = {
         {type = "item", name = "accumulator-mk01", amount = 1}
     }
-}
+}:add_unlock {"py-accumulator-mk01"}
 
 if mods.pycoalprocessing then
-    RECIPE("accumulator-mk01"):replace_ingredient_unsafe("steel-plate", "nexelit-plate"):add_ingredient_unsafe {type = "item", name = "niobium-plate", amount = 10}:add_unlock {"py-accumulator-mk01"}
+    RECIPE("accumulator-mk01"):replace_ingredient_unsafe("steel-plate", "nexelit-plate"):add_ingredient_unsafe {type = "item", name = "niobium-plate", amount = 10}
+end
+
+if mods.pyhightech then
+    RECIPE("accumulator-mk01"):add_ingredient_unsafe {type = "item", name = "used-nexelit-battery", amount = 1}
 end
 
 ITEM {
diff --git a/prototypes/buildings/accumulator-mk02.lua b/prototypes/buildings/accumulator-mk02.lua
index 7454d73..b7894d6 100644
--- a/prototypes/buildings/accumulator-mk02.lua
+++ b/prototypes/buildings/accumulator-mk02.lua
@@ -14,16 +14,21 @@ RECIPE {
     results = {
         {type = "item", name = "accumulator-mk02", amount = 1}
     }
-}
+}:add_unlock("py-accumulator-mk02")
 
 if mods.pycoalprocessing then
-    RECIPE("accumulator-mk02"):replace_ingredient_unsafe("steel-plate", "nexelit-plate"):add_ingredient_unsafe {type = "item", name = "optical-fiber", amount = 30}:add_unlock("py-accumulator-mk02")
+    RECIPE("accumulator-mk02"):replace_ingredient_unsafe("steel-plate", "nexelit-plate"):add_ingredient_unsafe {type = "item", name = "optical-fiber", amount = 30}
 end
 
 if mods.pyrawores then
     RECIPE("accumulator-mk02"):add_ingredient_unsafe {type = "fluid", name = "liquid-nitrogen", amount = 50}
 end
 
+if mods.pyhightech then
+    RECIPE("accumulator-mk02"):add_ingredient_unsafe {type = "item", name = "used-nexelit-battery", amount = 5}
+    RECIPE("accumulator-mk02"):remove_ingredient("battery"):add_ingredient_unsafe {type = "item", name = "re-magnet", amount = 10}:add_ingredient_unsafe {type = "item", name = "sc-coil", amount = 10}
+end
+
 ITEM {
     type = "item",
     name = "accumulator-mk02",
diff --git a/prototypes/technologies/accumulators.lua b/prototypes/technologies/accumulators.lua
index b85f988..05c74c6 100644
--- a/prototypes/technologies/accumulators.lua
+++ b/prototypes/technologies/accumulators.lua
@@ -38,6 +38,9 @@ TECHNOLOGY {
     order = "c-k-a",
     upgrade = true
 }
+if mods.pycoalprocessing then
+    RECIPE("accumulator-mk02"):add_unlock("py-accumulator-mk02")
+end
 
 if mods["pyalternativeenergy"] then
     TECHNOLOGY {