diff --git a/bootloader/power/max77620.h b/bootloader/power/max77620.h
index 435d55c..26ea855 100644
--- a/bootloader/power/max77620.h
+++ b/bootloader/power/max77620.h
@@ -19,9 +19,19 @@
 #define  MAX77620_CNFGGLBL1_LBDAC_EN          (1 << 7)
 #define  MAX77620_CNFGGLBL1_MPPLD             (1 << 6)
 #define  MAX77620_CNFGGLBL1_LBHYST            ((1 << 5) | (1 << 4))
-#define  MAX77620_CNFGGLBL1_LBHYST_N          (1 << 4)
-#define  MAX77620_CNFGGLBL1_LBDAC             0x0E
-#define  MAX77620_CNFGGLBL1_LBDAC_N           (1 << 1)
+#define  MAX77620_CNFGGLBL1_LBHYST_100        (0 << 4)
+#define  MAX77620_CNFGGLBL1_LBHYST_200        (1 << 4)
+#define  MAX77620_CNFGGLBL1_LBHYST_300        (2 << 4)
+#define  MAX77620_CNFGGLBL1_LBHYST_400        (3 << 4)
+#define  MAX77620_CNFGGLBL1_LBDAC_MASK        0x0E
+#define  MAX77620_CNFGGLBL1_LBDAC_2700        (0 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_2800        (1 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_2900        (2 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_3000        (3 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_3100        (4 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_3200        (5 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_3300        (6 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_3400        (7 << 1)
 #define  MAX77620_CNFGGLBL1_LBRSTEN           (1 << 0)
 
 #define MAX77620_REG_CNFGGLBL2      0x01
diff --git a/bootloader/power/max7762x.c b/bootloader/power/max7762x.c
index c5c11c1..0e7a6b5 100644
--- a/bootloader/power/max7762x.c
+++ b/bootloader/power/max7762x.c
@@ -170,6 +170,7 @@ void max77620_config_default()
 
 void max77620_low_battery_monitor_config()
 {
-	i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_CNFGGLBL1,
-		MAX77620_CNFGGLBL1_LBDAC_EN | MAX77620_CNFGGLBL1_LBHYST_N | MAX77620_CNFGGLBL1_LBDAC_N);
+	_max77620_try_set_reg(MAX77620_REG_CNFGGLBL1,
+		MAX77620_CNFGGLBL1_LBDAC_EN | MAX77620_CNFGGLBL1_MPPLD |
+		MAX77620_CNFGGLBL1_LBHYST_200 | MAX77620_CNFGGLBL1_LBDAC_2800);
 }
diff --git a/bootloader/soc/hw_init.c b/bootloader/soc/hw_init.c
index 92b1de4..40e08a4 100644
--- a/bootloader/soc/hw_init.c
+++ b/bootloader/soc/hw_init.c
@@ -258,7 +258,7 @@ void _config_regulators()
 		MAX77621_T_JUNCTION_120 | MAX77621_FT_ENABLE | MAX77621_CKKADV_TRIP_75mV_PER_US_HIST_DIS |
 		MAX77621_CKKADV_TRIP_150mV_PER_US | MAX77621_INDUCTOR_NOMINAL);
 
-	// Disable low battery shutdown monitor.
+	// Enable low battery shutdown monitor for < 2800mV.
 	max77620_low_battery_monitor_config();
 }
 
diff --git a/nyx/nyx_gui/power/max77620.h b/nyx/nyx_gui/power/max77620.h
index 435d55c..26ea855 100644
--- a/nyx/nyx_gui/power/max77620.h
+++ b/nyx/nyx_gui/power/max77620.h
@@ -19,9 +19,19 @@
 #define  MAX77620_CNFGGLBL1_LBDAC_EN          (1 << 7)
 #define  MAX77620_CNFGGLBL1_MPPLD             (1 << 6)
 #define  MAX77620_CNFGGLBL1_LBHYST            ((1 << 5) | (1 << 4))
-#define  MAX77620_CNFGGLBL1_LBHYST_N          (1 << 4)
-#define  MAX77620_CNFGGLBL1_LBDAC             0x0E
-#define  MAX77620_CNFGGLBL1_LBDAC_N           (1 << 1)
+#define  MAX77620_CNFGGLBL1_LBHYST_100        (0 << 4)
+#define  MAX77620_CNFGGLBL1_LBHYST_200        (1 << 4)
+#define  MAX77620_CNFGGLBL1_LBHYST_300        (2 << 4)
+#define  MAX77620_CNFGGLBL1_LBHYST_400        (3 << 4)
+#define  MAX77620_CNFGGLBL1_LBDAC_MASK        0x0E
+#define  MAX77620_CNFGGLBL1_LBDAC_2700        (0 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_2800        (1 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_2900        (2 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_3000        (3 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_3100        (4 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_3200        (5 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_3300        (6 << 1)
+#define  MAX77620_CNFGGLBL1_LBDAC_3400        (7 << 1)
 #define  MAX77620_CNFGGLBL1_LBRSTEN           (1 << 0)
 
 #define MAX77620_REG_CNFGGLBL2      0x01
diff --git a/nyx/nyx_gui/power/max7762x.c b/nyx/nyx_gui/power/max7762x.c
index 0ccc5fc..6ed7acf 100644
--- a/nyx/nyx_gui/power/max7762x.c
+++ b/nyx/nyx_gui/power/max7762x.c
@@ -173,8 +173,9 @@ void max77620_config_default()
 
 void max77620_low_battery_monitor_config()
 {
-	i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_CNFGGLBL1,
-		MAX77620_CNFGGLBL1_LBDAC_EN | MAX77620_CNFGGLBL1_LBHYST_N | MAX77620_CNFGGLBL1_LBDAC_N);
+	_max77620_try_set_reg(MAX77620_REG_CNFGGLBL1,
+		MAX77620_CNFGGLBL1_LBDAC_EN | MAX77620_CNFGGLBL1_MPPLD |
+		MAX77620_CNFGGLBL1_LBHYST_200 | MAX77620_CNFGGLBL1_LBDAC_2800);
 }
 
 #pragma GCC pop_options