diff --git a/src/board/system76/oryp11/board.mk b/src/board/system76/oryp11/board.mk
index 8b77bfb..a0b028d 100644
--- a/src/board/system76/oryp11/board.mk
+++ b/src/board/system76/oryp11/board.mk
@@ -36,7 +36,7 @@ CFLAGS+=-DI2C_USBPD=I2C_1
 # TODO: actually bq24800
 CHARGER=bq24780s
 CFLAGS+=\
-	-DCHARGER_ADAPTER_RSENSE=5 \
+	-DCHARGER_ADAPTER_RSENSE=10 \
 	-DCHARGER_BATTERY_RSENSE=10 \
 	-DCHARGER_CHARGE_CURRENT=3072 \
 	-DCHARGER_CHARGE_VOLTAGE=17600 \
diff --git a/src/board/system76/serw13/board.mk b/src/board/system76/serw13/board.mk
index 8d990ef..cd3c05d 100644
--- a/src/board/system76/serw13/board.mk
+++ b/src/board/system76/serw13/board.mk
@@ -32,9 +32,8 @@ CFLAGS+=-DI2C_USBPD=I2C_1
 
 # Set smart charger parameters
 # TODO: actually bq24800
-# XXX: What is PRS3?
 CFLAGS+=\
-	-DCHARGER_ADAPTER_RSENSE=5 \
+	-DCHARGER_ADAPTER_RSENSE=10 \
 	-DCHARGER_BATTERY_RSENSE=10 \
 	-DCHARGER_CHARGE_CURRENT=2048 \
 	-DCHARGER_CHARGE_VOLTAGE=13050 \