diff --git a/include/constants/battle_config.h b/include/constants/battle_config.h
index 8f8d30b56..9563e6b50 100644
--- a/include/constants/battle_config.h
+++ b/include/constants/battle_config.h
@@ -216,6 +216,7 @@
 // Interface settings
 #define B_ABILITY_POP_UP            TRUE  // In Gen5+, the Pokémon abilities are displayed in a pop-up, when they activate in battle.
 #define B_FAST_INTRO                TRUE  // If set to TRUE, battle intro texts print at the same time as animation of a Pokémon, as opposing to waiting for the animation to end.
+#define B_FAST_HP_DRAIN             TRUE  // If set to TRUE, HP bars will move faster to accomodate higher max HP amounts.
 #define B_SHOW_TARGETS              TRUE  // If set to TRUE, all available targets, for moves hitting 2 or 3 Pokémon, will be shown before selecting a move.
 #define B_SHOW_SPLIT_ICON           TRUE  // If set to TRUE, it will show an icon in the summary showing the move's category split.
 #define B_HIDE_HEALTHBOX_IN_ANIMS   TRUE  // If set to TRUE, hides healthboxes during move animations.
diff --git a/src/battle_interface.c b/src/battle_interface.c
index f1d2d1d59..2ac611f83 100644
--- a/src/battle_interface.c
+++ b/src/battle_interface.c
@@ -2438,7 +2438,11 @@ s32 MoveBattleBar(u8 battlerId, u8 healthboxSpriteId, u8 whichBar, u8 unused)
                     gBattleSpritesDataPtr->battleBars[battlerId].oldValue,
                     gBattleSpritesDataPtr->battleBars[battlerId].receivedValue,
                     &gBattleSpritesDataPtr->battleBars[battlerId].currValue,
+                #if B_FAST_HP_DRAIN == TRUE
+                    B_HEALTHBAR_PIXELS / 8, max(gBattleSpritesDataPtr->battleBars[battlerId].maxValue / B_HEALTHBAR_PIXELS, 1));
+                #else
                     B_HEALTHBAR_PIXELS / 8, 1);
+                #endif
     }
     else // exp bar
     {