diff --git a/src/mainboard/system76/adl/variants/darp8/overridetree.cb b/src/mainboard/system76/adl/variants/darp8/overridetree.cb
index a4dbed8..91b0291 100644
--- a/src/mainboard/system76/adl/variants/darp8/overridetree.cb
+++ b/src/mainboard/system76/adl/variants/darp8/overridetree.cb
@@ -1,10 +1,7 @@
 chip soc/intel/alderlake
-	# HACK: Limit PL4 to PL2 to prevent power-off when system is booted on
-	# battery power. This seems to only happen with the i7 units.
 	register "power_limits_config[ADL_P_282_442_482_28W_CORE]" = "{
 		.tdp_pl1_override = 20,
 		.tdp_pl2_override = 56,
-		.tdp_pl4 = 56, // FIXME: Set to 65
 	}"
 
 	# GPE configuration
diff --git a/src/mainboard/system76/adl/variants/galp6/overridetree.cb b/src/mainboard/system76/adl/variants/galp6/overridetree.cb
index cac4df6..dc5d593 100644
--- a/src/mainboard/system76/adl/variants/galp6/overridetree.cb
+++ b/src/mainboard/system76/adl/variants/galp6/overridetree.cb
@@ -2,7 +2,6 @@
 	register "power_limits_config[ADL_P_282_442_482_28W_CORE]" = "{
 		.tdp_pl1_override = 28,
 		.tdp_pl2_override = 60,
-		.tdp_pl4 = 90,
 	}"
 
 	# GPE configuration
diff --git a/src/mainboard/system76/adl/variants/lemp11/overridetree.cb b/src/mainboard/system76/adl/variants/lemp11/overridetree.cb
index 82943cb..379dad8 100644
--- a/src/mainboard/system76/adl/variants/lemp11/overridetree.cb
+++ b/src/mainboard/system76/adl/variants/lemp11/overridetree.cb
@@ -2,7 +2,6 @@
 	register "power_limits_config[ADL_P_142_242_282_15W_CORE]" = "{
 		.tdp_pl1_override = 15,
 		.tdp_pl2_override = 46,
-		.tdp_pl4 = 65,
 	}"
 
 	# GPE configuration
diff --git a/src/mainboard/system76/adl/variants/oryp10/overridetree.cb b/src/mainboard/system76/adl/variants/oryp10/overridetree.cb
index ddf5876..ad75a13 100644
--- a/src/mainboard/system76/adl/variants/oryp10/overridetree.cb
+++ b/src/mainboard/system76/adl/variants/oryp10/overridetree.cb
@@ -1,10 +1,8 @@
 chip soc/intel/alderlake
-	# HACK: Limit PL4 to prevent power off on battery power.
 	register "power_limits_config[ADL_P_642_682_45W_CORE]" = "{
 		.tdp_pl1_override = 45,
 		.tdp_pl2_override = 115,
 		.tdp_psyspl2 = 135,
-		.tdp_pl4 = 72,
 	}"
 
 	# Thermal
diff --git a/src/mainboard/system76/adl/variants/oryp9/overridetree.cb b/src/mainboard/system76/adl/variants/oryp9/overridetree.cb
index a58c4c3..13989cb 100644
--- a/src/mainboard/system76/adl/variants/oryp9/overridetree.cb
+++ b/src/mainboard/system76/adl/variants/oryp9/overridetree.cb
@@ -1,10 +1,8 @@
 chip soc/intel/alderlake
-	# HACK: Limit PL4 to prevent power off on battery power.
 	register "power_limits_config[ADL_P_642_682_45W_CORE]" = "{
 		.tdp_pl1_override = 45,
 		.tdp_pl2_override = 115,
 		.tdp_psyspl2 = 135,
-		.tdp_pl4 = 72,
 	}"
 
 	# Thermal