diff --git a/hosts/uConsole/configuration.nix b/hosts/uConsole/configuration.nix
index 6e42cfc..ebf13fd 100644
--- a/hosts/uConsole/configuration.nix
+++ b/hosts/uConsole/configuration.nix
@@ -171,6 +171,16 @@ in
   # ============================================================
   services.udev.packages = with pkgs; [ rtl-sdr ];
 
+  # ============================================================
+  # Fix random shutdowns when battery voltage drops under load
+  # Default voltage_min_design is 3.3V, too high for Li-ion
+  # under heavy CPU load (builds). Lower to 2.7V.
+  # See: https://forum.clockworkpi.com/t/voltage_min_design-and-random-shutdowns
+  # ============================================================
+  services.udev.extraRules = ''
+    ACTION=="add", SUBSYSTEM=="power_supply", ATTR{voltage_min_design}="2700000"
+  '';
+
   # ============================================================
   # Enable IPv6 for Reticulum mesh
   # ============================================================