diff --git a/include/axp221.h b/include/axp221.h
index ade9066..8df811a 100644
--- a/include/axp221.h
+++ b/include/axp221.h
@@ -10,6 +10,10 @@
 #define AXP221_CTRL_ADDR 0x3e
 #define AXP221_INIT_DATA 0x3e
 
+#define AXP223_DEVICE_ADDR 0x3a3
+#define AXP223_RUNTIME_ADDR 0x2d
+#define AXP223_DEVICE_MODE_DATA 0x7c3e00
+
 /* Page 0 addresses */
 #define AXP221_CHIP_ID		0x03
 #define AXP221_OUTPUT_CTRL1	0x10