diff --git a/apps/math_toolbox.cpp b/apps/math_toolbox.cpp
index 7ca52a077..11c810c05 100644
--- a/apps/math_toolbox.cpp
+++ b/apps/math_toolbox.cpp
@@ -178,15 +178,13 @@ const ToolboxMessageTree unitEnergyChildren[] = {
   ToolboxMessageTree::Node(I18n::Message::UnitEnergyEletronVoltMenu, unitEnergyElectronVoltChildren)};
 
 const ToolboxMessageTree unitPowerWattChildren[] = {
-  ToolboxMessageTree::Leaf(I18n::Message::UnitPowerWattTeraSymbol, I18n::Message::UnitPowerWattTera),
   ToolboxMessageTree::Leaf(I18n::Message::UnitPowerWattGigaSymbol, I18n::Message::UnitPowerWattGiga),
   ToolboxMessageTree::Leaf(I18n::Message::UnitPowerWattMegaSymbol, I18n::Message::UnitPowerWattMega),
   ToolboxMessageTree::Leaf(I18n::Message::UnitPowerWattKiloSymbol, I18n::Message::UnitPowerWattKilo),
   ToolboxMessageTree::Leaf(I18n::Message::UnitPowerWattSymbol, I18n::Message::UnitPowerWatt),
   ToolboxMessageTree::Leaf(I18n::Message::UnitPowerWattMilliSymbol, I18n::Message::UnitPowerWattMilli),
   ToolboxMessageTree::Leaf(I18n::Message::UnitPowerWattMicroSymbol, I18n::Message::UnitPowerWattMicro),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitPowerWattNanoSymbol, I18n::Message::UnitPowerWattNano),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitPowerWattPicoSymbol, I18n::Message::UnitPowerWattPico)};
+};
 
 const ToolboxMessageTree unitElectricChargeCoulombChildren[] = {
   ToolboxMessageTree::Leaf(I18n::Message::UnitChargeCoulombTeraSymbol, I18n::Message::UnitChargeCoulombTera),
diff --git a/apps/shared.universal.i18n b/apps/shared.universal.i18n
index 74a1caddf..a7202aa18 100644
--- a/apps/shared.universal.i18n
+++ b/apps/shared.universal.i18n
@@ -49,15 +49,12 @@ UnitEnergyElectronVoltMegaSymbol = "_MeV"
 UnitEnergyElectronVoltKiloSymbol = "_keV"
 UnitEnergyElectronVoltSymbol = "_eV"
 UnitEnergyElectronVoltMilliSymbol = "_meV"
-UnitPowerWattTeraSymbol = "_TW"
 UnitPowerWattGigaSymbol = "_GW"
 UnitPowerWattMegaSymbol = "_MW"
 UnitPowerWattKiloSymbol = "_kW"
 UnitPowerWattSymbol = "_W"
 UnitPowerWattMilliSymbol = "_mW"
 UnitPowerWattMicroSymbol = "_μW"
-UnitPowerWattNanoSymbol = "_nW"
-UnitPowerWattPicoSymbol = "_pW"
 UnitChargeCoulombTeraSymbol = "_TC"
 UnitChargeCoulombGigaSymbol = "_GC"
 UnitChargeCoulombMegaSymbol = "_MC"
diff --git a/apps/toolbox.de.i18n b/apps/toolbox.de.i18n
index a94ea4e87..e176e309d 100644
--- a/apps/toolbox.de.i18n
+++ b/apps/toolbox.de.i18n
@@ -66,15 +66,12 @@ UnitEnergyElectronVoltKilo = "Kiloelectronvolt"
 UnitEnergyElectronVolt = "Electronvolt"
 UnitEnergyElectronVoltMilli = "Millielectronvolt"
 UnitPowerMenu = "Power"
-UnitPowerWattTera = "Terawatt"
 UnitPowerWattGiga = "Gigawatt"
 UnitPowerWattMega = "Megawatt"
 UnitPowerWattKilo = "Kilowatt"
 UnitPowerWatt = "Watt"
 UnitPowerWattMilli = "Milliwatt"
 UnitPowerWattMicro = "Microwatt"
-UnitPowerWattNano = "Nanowatt"
-UnitPowerWattPico = "Picowatt"
 UnitElectricChargeMenu = "Electric charge"
 UnitChargeCoulombTera = "Teracoulomb"
 UnitChargeCoulombGiga = "Gigacoulomb"
diff --git a/apps/toolbox.en.i18n b/apps/toolbox.en.i18n
index 9ebf60470..26fd2aec5 100644
--- a/apps/toolbox.en.i18n
+++ b/apps/toolbox.en.i18n
@@ -66,15 +66,12 @@ UnitEnergyElectronVoltKilo = "Kiloelectronvolt"
 UnitEnergyElectronVolt = "Electronvolt"
 UnitEnergyElectronVoltMilli = "Millielectronvolt"
 UnitPowerMenu = "Power"
-UnitPowerWattTera = "Terawatt"
 UnitPowerWattGiga = "Gigawatt"
 UnitPowerWattMega = "Megawatt"
 UnitPowerWattKilo = "Kilowatt"
 UnitPowerWatt = "Watt"
 UnitPowerWattMilli = "Milliwatt"
 UnitPowerWattMicro = "Microwatt"
-UnitPowerWattNano = "Nanowatt"
-UnitPowerWattPico = "Picowatt"
 UnitElectricChargeMenu = "Electric charge"
 UnitChargeCoulombTera = "Teracoulomb"
 UnitChargeCoulombGiga = "Gigacoulomb"
diff --git a/apps/toolbox.es.i18n b/apps/toolbox.es.i18n
index f7f6cf3d3..985bc413d 100644
--- a/apps/toolbox.es.i18n
+++ b/apps/toolbox.es.i18n
@@ -66,15 +66,12 @@ UnitEnergyElectronVoltKilo = "Kiloelectronvolt"
 UnitEnergyElectronVolt = "Electronvolt"
 UnitEnergyElectronVoltMilli = "Millielectronvolt"
 UnitPowerMenu = "Power"
-UnitPowerWattTera = "Terawatt"
 UnitPowerWattGiga = "Gigawatt"
 UnitPowerWattMega = "Megawatt"
 UnitPowerWattKilo = "Kilowatt"
 UnitPowerWatt = "Watt"
 UnitPowerWattMilli = "Milliwatt"
 UnitPowerWattMicro = "Microwatt"
-UnitPowerWattNano = "Nanowatt"
-UnitPowerWattPico = "Picowatt"
 UnitElectricChargeMenu = "Electric charge"
 UnitChargeCoulombTera = "Teracoulomb"
 UnitChargeCoulombGiga = "Gigacoulomb"
diff --git a/apps/toolbox.fr.i18n b/apps/toolbox.fr.i18n
index c22fe6c13..f635f0708 100644
--- a/apps/toolbox.fr.i18n
+++ b/apps/toolbox.fr.i18n
@@ -66,15 +66,12 @@ UnitEnergyElectronVoltKilo = "Kiloelectronvolt"
 UnitEnergyElectronVolt = "Electronvolt"
 UnitEnergyElectronVoltMilli = "Millielectronvolt"
 UnitPowerMenu = "Puissance"
-UnitPowerWattTera = "Terawatt"
 UnitPowerWattGiga = "Gigawatt"
 UnitPowerWattMega = "Megawatt"
 UnitPowerWattKilo = "Kilowatt"
 UnitPowerWatt = "Watt"
 UnitPowerWattMilli = "Milliwatt"
 UnitPowerWattMicro = "Microwatt"
-UnitPowerWattNano = "Nanowatt"
-UnitPowerWattPico = "Picowatt"
 UnitElectricChargeMenu = "Charge électrique"
 UnitChargeCoulombTera = "Teracoulomb"
 UnitChargeCoulombGiga = "Gigacoulomb"
diff --git a/apps/toolbox.pt.i18n b/apps/toolbox.pt.i18n
index 4fdda3101..0092e8dd9 100644
--- a/apps/toolbox.pt.i18n
+++ b/apps/toolbox.pt.i18n
@@ -66,15 +66,12 @@ UnitEnergyElectronVoltKilo = "Kiloelectronvolt"
 UnitEnergyElectronVolt = "Electronvolt"
 UnitEnergyElectronVoltMilli = "Millielectronvolt"
 UnitPowerMenu = "Power"
-UnitPowerWattTera = "Terawatt"
 UnitPowerWattGiga = "Gigawatt"
 UnitPowerWattMega = "Megawatt"
 UnitPowerWattKilo = "Kilowatt"
 UnitPowerWatt = "Watt"
 UnitPowerWattMilli = "Milliwatt"
 UnitPowerWattMicro = "Microwatt"
-UnitPowerWattNano = "Nanowatt"
-UnitPowerWattPico = "Picowatt"
 UnitElectricChargeMenu = "Electric charge"
 UnitChargeCoulombTera = "Teracoulomb"
 UnitChargeCoulombGiga = "Gigacoulomb"