diff --git a/technic/machines/HV/battery_box.lua b/technic/machines/HV/battery_box.lua
index 17b0eae..b009d80 100644
--- a/technic/machines/HV/battery_box.lua
+++ b/technic/machines/HV/battery_box.lua
@@ -10,7 +10,7 @@ minetest.register_craft({
 
 technic.register_battery_box({
 	tier           = "HV",
-	max_charge     = 1500000,
+	max_charge     = 1000000,
 	charge_rate    = 100000,
 	discharge_rate = 400000,
 	charge_step    = 10000,
diff --git a/technic/machines/LV/battery_box.lua b/technic/machines/LV/battery_box.lua
index 459fdb3..cba2ef6 100644
--- a/technic/machines/LV/battery_box.lua
+++ b/technic/machines/LV/battery_box.lua
@@ -10,7 +10,7 @@ minetest.register_craft({
 
 technic.register_battery_box({
 	tier           = "LV",
-	max_charge     = 50000,
+	max_charge     = 40000,
 	charge_rate    = 1000,
 	discharge_rate = 4000,
 	charge_step    = 500,
diff --git a/technic/machines/MV/battery_box.lua b/technic/machines/MV/battery_box.lua
index e58bbf5..6a996b8 100644
--- a/technic/machines/MV/battery_box.lua
+++ b/technic/machines/MV/battery_box.lua
@@ -11,7 +11,7 @@ minetest.register_craft({
 
 technic.register_battery_box({
 	tier           = "MV",
-	max_charge     = 300000,
+	max_charge     = 200000,
 	charge_rate    = 20000,
 	discharge_rate = 80000,
 	charge_step    = 2000,