diff --git a/apps/math_toolbox.cpp b/apps/math_toolbox.cpp
index 08107ec92..b96f5956c 100644
--- a/apps/math_toolbox.cpp
+++ b/apps/math_toolbox.cpp
@@ -191,15 +191,11 @@ const ToolboxMessageTree unitElectricChargeCoulombChildren[] = {
 };
 
 const ToolboxMessageTree unitPotentialVoltChildren[] = {
-  ToolboxMessageTree::Leaf(I18n::Message::UnitPotentialVoltTeraSymbol, I18n::Message::UnitPotentialVoltTera),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitPotentialVoltGigaSymbol, I18n::Message::UnitPotentialVoltGiga),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitPotentialVoltMegaSymbol, I18n::Message::UnitPotentialVoltMega),
   ToolboxMessageTree::Leaf(I18n::Message::UnitPotentialVoltKiloSymbol, I18n::Message::UnitPotentialVoltKilo),
   ToolboxMessageTree::Leaf(I18n::Message::UnitPotentialVoltSymbol, I18n::Message::UnitPotentialVolt),
   ToolboxMessageTree::Leaf(I18n::Message::UnitPotentialVoltMilliSymbol, I18n::Message::UnitPotentialVoltMilli),
   ToolboxMessageTree::Leaf(I18n::Message::UnitPotentialVoltMicroSymbol, I18n::Message::UnitPotentialVoltMicro),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitPotentialVoltNanoSymbol, I18n::Message::UnitPotentialVoltNano),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitPotentialVoltPicoSymbol, I18n::Message::UnitPotentialVoltPico)};
+};
 
 const ToolboxMessageTree unitCapacitanceFaradChildren[] = {
   ToolboxMessageTree::Leaf(I18n::Message::UnitCapacitanceFaradTeraSymbol, I18n::Message::UnitCapacitanceFaradTera),
diff --git a/apps/shared.universal.i18n b/apps/shared.universal.i18n
index 193499794..65fc227b2 100644
--- a/apps/shared.universal.i18n
+++ b/apps/shared.universal.i18n
@@ -56,15 +56,10 @@ UnitPowerWattSymbol = "_W"
 UnitPowerWattMilliSymbol = "_mW"
 UnitPowerWattMicroSymbol = "_μW"
 UnitChargeCoulombSymbol = "_C"
-UnitPotentialVoltTeraSymbol = "_TV"
-UnitPotentialVoltGigaSymbol = "_GV"
-UnitPotentialVoltMegaSymbol = "_MV"
 UnitPotentialVoltKiloSymbol = "_kV"
 UnitPotentialVoltSymbol = "_V"
 UnitPotentialVoltMilliSymbol = "_mV"
 UnitPotentialVoltMicroSymbol = "_μV"
-UnitPotentialVoltNanoSymbol = "_nV"
-UnitPotentialVoltPicoSymbol = "_pV"
 UnitCapacitanceFaradTeraSymbol = "_TF"
 UnitCapacitanceFaradGigaSymbol = "_GF"
 UnitCapacitanceFaradMegaSymbol = "_MF"
diff --git a/apps/toolbox.de.i18n b/apps/toolbox.de.i18n
index 2722551d1..626556f70 100644
--- a/apps/toolbox.de.i18n
+++ b/apps/toolbox.de.i18n
@@ -75,15 +75,10 @@ UnitPowerWattMicro = "Microwatt"
 UnitElectricChargeMenu = "Electric charge"
 UnitChargeCoulomb = "Coulomb"
 UnitPotentialMenu = "Electric potential"
-UnitPotentialVoltTera = "Teravolt"
-UnitPotentialVoltGiga = "Gigavolt"
-UnitPotentialVoltMega = "Megavolt"
 UnitPotentialVoltKilo = "Kilovolt"
 UnitPotentialVolt = "Volt"
 UnitPotentialVoltMilli = "Millivolt"
 UnitPotentialVoltMicro = "Microvolt"
-UnitPotentialVoltNano = "Nanovolt"
-UnitPotentialVoltPico = "Picovolt"
 UnitCapacitanceMenu = "Electrical capacitance"
 UnitCapacitanceFaradTera = "Terafarad"
 UnitCapacitanceFaradGiga = "Gigafarad"
diff --git a/apps/toolbox.en.i18n b/apps/toolbox.en.i18n
index 33cb542d8..fa7bff452 100644
--- a/apps/toolbox.en.i18n
+++ b/apps/toolbox.en.i18n
@@ -75,15 +75,10 @@ UnitPowerWattMicro = "Microwatt"
 UnitElectricChargeMenu = "Electric charge"
 UnitChargeCoulomb = "Coulomb"
 UnitPotentialMenu = "Electric potential"
-UnitPotentialVoltTera = "Teravolt"
-UnitPotentialVoltGiga = "Gigavolt"
-UnitPotentialVoltMega = "Megavolt"
 UnitPotentialVoltKilo = "Kilovolt"
 UnitPotentialVolt = "Volt"
 UnitPotentialVoltMilli = "Millivolt"
 UnitPotentialVoltMicro = "Microvolt"
-UnitPotentialVoltNano = "Nanovolt"
-UnitPotentialVoltPico = "Picovolt"
 UnitCapacitanceMenu = "Electrical capacitance"
 UnitCapacitanceFaradTera = "Terafarad"
 UnitCapacitanceFaradGiga = "Gigafarad"
diff --git a/apps/toolbox.es.i18n b/apps/toolbox.es.i18n
index 6744feb06..4ba7c9a8b 100644
--- a/apps/toolbox.es.i18n
+++ b/apps/toolbox.es.i18n
@@ -75,15 +75,10 @@ UnitPowerWattMicro = "Microwatt"
 UnitElectricChargeMenu = "Electric charge"
 UnitChargeCoulomb = "Coulomb"
 UnitPotentialMenu = "Electric potential"
-UnitPotentialVoltTera = "Teravolt"
-UnitPotentialVoltGiga = "Gigavolt"
-UnitPotentialVoltMega = "Megavolt"
 UnitPotentialVoltKilo = "Kilovolt"
 UnitPotentialVolt = "Volt"
 UnitPotentialVoltMilli = "Millivolt"
 UnitPotentialVoltMicro = "Microvolt"
-UnitPotentialVoltNano = "Nanovolt"
-UnitPotentialVoltPico = "Picovolt"
 UnitCapacitanceMenu = "Electrical capacitance"
 UnitCapacitanceFaradTera = "Terafarad"
 UnitCapacitanceFaradGiga = "Gigafarad"
diff --git a/apps/toolbox.fr.i18n b/apps/toolbox.fr.i18n
index 7c9f1ca45..6c1a904a0 100644
--- a/apps/toolbox.fr.i18n
+++ b/apps/toolbox.fr.i18n
@@ -75,15 +75,10 @@ UnitPowerWattMicro = "Microwatt"
 UnitElectricChargeMenu = "Charge électrique"
 UnitChargeCoulomb = "Coulomb"
 UnitPotentialMenu = "Tension électrique"
-UnitPotentialVoltTera = "Teravolt"
-UnitPotentialVoltGiga = "Gigavolt"
-UnitPotentialVoltMega = "Megavolt"
 UnitPotentialVoltKilo = "Kilovolt"
 UnitPotentialVolt = "Volt"
 UnitPotentialVoltMilli = "Millivolt"
 UnitPotentialVoltMicro = "Microvolt"
-UnitPotentialVoltNano = "Nanovolt"
-UnitPotentialVoltPico = "Picovolt"
 UnitCapacitanceMenu = "Capacité électrique"
 UnitCapacitanceFaradTera = "Terafarad"
 UnitCapacitanceFaradGiga = "Gigafarad"
diff --git a/apps/toolbox.pt.i18n b/apps/toolbox.pt.i18n
index 677880308..aab43426a 100644
--- a/apps/toolbox.pt.i18n
+++ b/apps/toolbox.pt.i18n
@@ -75,15 +75,10 @@ UnitPowerWattMicro = "Microwatt"
 UnitElectricChargeMenu = "Electric charge"
 UnitChargeCoulomb = "Coulomb"
 UnitPotentialMenu = "Electric potential"
-UnitPotentialVoltTera = "Teravolt"
-UnitPotentialVoltGiga = "Gigavolt"
-UnitPotentialVoltMega = "Megavolt"
 UnitPotentialVoltKilo = "Kilovolt"
 UnitPotentialVolt = "Volt"
 UnitPotentialVoltMilli = "Millivolt"
 UnitPotentialVoltMicro = "Microvolt"
-UnitPotentialVoltNano = "Nanovolt"
-UnitPotentialVoltPico = "Picovolt"
 UnitCapacitanceMenu = "Electrical capacitance"
 UnitCapacitanceFaradTera = "Terafarad"
 UnitCapacitanceFaradGiga = "Gigafarad"