diff --git a/variants/lilygo_tdeck_max/TDeckProMaxBoard.cpp b/variants/lilygo_tdeck_max/TDeckProMaxBoard.cpp
index 021183a8..4d011d2e 100644
--- a/variants/lilygo_tdeck_max/TDeckProMaxBoard.cpp
+++ b/variants/lilygo_tdeck_max/TDeckProMaxBoard.cpp
@@ -107,7 +107,7 @@ for (uint8_t a = 0x6A; a <= 0x6B; a++) {
   #if HAS_BQ27220
     uint16_t voltage = getBattMilliVolts();
     MESH_DEBUG_PRINTLN("  Battery voltage: %d mV", voltage);
-    configureFuelGauge();   // sets 1500 mAh (MAX design capacity)
+    configureFuelGauge();   // sets 1400 mAh (MAX design capacity)
   #endif
 
   // ------ Step 11: Early low-voltage protection ------
diff --git a/variants/lilygo_tdeck_max/variant.h b/variants/lilygo_tdeck_max/variant.h
index 5e3f84cd..07149c09 100644
--- a/variants/lilygo_tdeck_max/variant.h
+++ b/variants/lilygo_tdeck_max/variant.h
@@ -239,8 +239,8 @@
 #define BQ27220_I2C_ADDR 0x55
 #define BQ27220_I2C_SDA I2C_SDA
 #define BQ27220_I2C_SCL I2C_SCL
-#define BQ27220_DESIGN_CAPACITY 1500    // MAX: 1500 mAh (was 1400 on V1.1)
-#define BQ27220_DESIGN_CAPACITY_MAH 1500 // Alias used by TDeckBoard.h
+#define BQ27220_DESIGN_CAPACITY 1400    // 
+#define BQ27220_DESIGN_CAPACITY_MAH 1400 // Alias used by TDeckBoard.h
 
 #define HAS_PPM 1
 // This board uses the SY6970 charger @ 0x6A (newer revision -- confirmed by I2C