diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/capability/energy/IMatteryEnergyStorage.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/energy/IMatteryEnergyStorage.kt
index 9f3853a0c..799f0a8ab 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/capability/energy/IMatteryEnergyStorage.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/energy/IMatteryEnergyStorage.kt
@@ -52,9 +52,7 @@ interface IMatteryEnergyStorage : IEnergyStorage {
 	 * @return energy extracted
 	 */
 	fun extractEnergyChecked(howMuch: Decimal, simulate: Boolean): Decimal {
-		require(!howMuch.isNegative) { "Negative amount of energy: $howMuch" }
-
-		if (!energyFlow.output)
+		if (howMuch.isNegative || !energyFlow.output)
 			return Decimal.ZERO
 
 		return extractEnergy(howMuch, simulate)
@@ -86,9 +84,7 @@ interface IMatteryEnergyStorage : IEnergyStorage {
 	 * @return energy extracted
 	 */
 	fun receiveEnergyChecked(howMuch: Decimal, simulate: Boolean): Decimal {
-		require(!howMuch.isNegative) { "Negative amount of energy: $howMuch" }
-
-		if (!energyFlow.input)
+		if (howMuch.isNegative || !energyFlow.input)
 			return Decimal.ZERO
 
 		return receiveEnergy(howMuch, simulate)