1 files changed, 41 insertions, 0 deletions
diff --git a/system/battery.nix b/system/battery.nix
new file mode 100644
index 0000000..42ee269
--- /dev/null
+++ b/system/battery.nix
@@ -0,0 +1,41 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}: let
+  inherit (lib) mkIf;
+in {
+  config = mkIf config.battery {
+    # power monterting
+    services.upower = {
+      enable = !config.minimal;
+      percentageLow = 20;
+      percentageCritical = 10;
+      percentageAction = 4;
+      criticalPowerAction = "Hibernate";
+    };
+
+    # power profiles
+    services.tlp = {
+      enable = !config.minimal;
+      settings = {
+        CPU_SCALING_GOVERNOR_ON_AC = "performance";
+        CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
+
+        CPU_ENERGY_PERF_POLICY_ON_BAT = "power";
+        CPU_ENERGY_PERF_POLICY_ON_AC = "performance";
+
+        CPU_MIN_PERF_ON_AC = 0;
+        CPU_MAX_PERF_ON_AC = 100;
+        CPU_MIN_PERF_ON_BAT = 0;
+        CPU_MAX_PERF_ON_BAT = 20;
+      };
+    };
+
+    # packages
+    environment.systemPackages = with pkgs; [
+      acpi
+    ];
+  };
+}