diff --git a/esphome/batteries.yml b/esphome/batteries.yml
index dbb24c2..5121a30 100644
--- a/esphome/batteries.yml
+++ b/esphome/batteries.yml
@@ -2,6 +2,16 @@ esphome:
   name: batteries
   friendly_name: batteries
 
+  platformio_options:
+    build_unflags:
+      - -fno-lto
+      - -Og
+      - -O0
+    build_flags:
+      - -flto
+      - -Os
+      - -Wl,--gc-sections
+
 esp32:
   board: esp32dev
   framework: