diff --git a/boards/nordic/thingy53/thingy53_nrf5340_common.dtsi b/boards/nordic/thingy53/thingy53_nrf5340_common.dtsi
index 782174d48b0..20a4e19d1d5 100644
--- a/boards/nordic/thingy53/thingy53_nrf5340_common.dtsi
+++ b/boards/nordic/thingy53/thingy53_nrf5340_common.dtsi
@@ -5,6 +5,7 @@
  */
 #include "thingy53_nrf5340_common-pinctrl.dtsi"
 #include <zephyr/dt-bindings/input/input-event-codes.h>
+#include <zephyr/dt-bindings/battery/battery.h>
 
 / {
 	chosen {
@@ -97,6 +98,14 @@
 		power-gpios = <&gpio0 16 0>;
 	};
 
+	fuel_gauge: fuel_gauge {
+		compatible = "zephyr,fuel-gauge-composite";
+		battery-voltage = <&vbatt>;
+		device-chemistry = "lithium-ion-polymer";
+		ocv-capacity-table-0 = <BATTERY_OCV_CURVE_LITHIUM_ION_POLYMER_DEFAULT>;
+		charge-full-design-microamp-hours = <1350000>;
+	};
+
 	regulator_3v3: regulator-3v3-ctrl {
 		compatible = "regulator-fixed";
 		regulator-name = "ncp114";