diff --git a/apps/drained/README.md b/apps/drained/README.md
index da3f16ef8..3ddee5907 100644
--- a/apps/drained/README.md
+++ b/apps/drained/README.md
@@ -20,6 +20,7 @@ With this app installed, your Bangle will automatically switch into low power mo
 
 ## Features
 - [x] Wake on twist -> off (#2502)
+- [x] Emit `"drained"` event
 
 # Creator
 
diff --git a/apps/drained/app.js b/apps/drained/app.js
index ef1a00db0..529d51639 100644
--- a/apps/drained/app.js
+++ b/apps/drained/app.js
@@ -57,3 +57,4 @@ Bangle.setUI({
 Bangle.CLOCK = 1;
 g.clear();
 draw();
+Bangle.emit("drained", E.getBattery());
diff --git a/apps/drained/app.ts b/apps/drained/app.ts
index 65966ed6e..a7b53d2b8 100644
--- a/apps/drained/app.ts
+++ b/apps/drained/app.ts
@@ -76,3 +76,6 @@ Bangle.CLOCK=1;
 
 g.clear();
 draw();
+
+// permit other apps to put themselves into low-power mode
+Bangle.emit("drained", E.getBattery());
diff --git a/apps/drained/boot.js b/apps/drained/boot.js
index a02b20e4f..9ed524b7f 100644
--- a/apps/drained/boot.js
+++ b/apps/drained/boot.js
@@ -1,16 +1,16 @@
 "use strict";
-var _a = require("Storage").readJSON("drained.setting.json", true) || {}, _b = _a.battery, battery = _b === void 0 ? 5 : _b, _c = _a.interval, interval = _c === void 0 ? 10 : _c, _d = _a.disableBoot, disableBoot = _d === void 0 ? false : _d;
-if (disableBoot) {
-    require("Storage").erase(".boot0");
-    Bangle.on("charging", function (charging) {
-        if (charging)
-            eval(require('Storage').read('bootupdate.js'));
-    });
-}
+var _a = require("Storage").readJSON("drained.setting.json", true) || {}, _b = _a.battery, threshold = _b === void 0 ? 5 : _b, _c = _a.interval, interval = _c === void 0 ? 10 : _c, _d = _a.disableBoot, disableBoot = _d === void 0 ? false : _d;
 drainedInterval = setInterval(function () {
     if (Bangle.isCharging())
         return;
-    if (E.getBattery() > battery)
+    if (E.getBattery() > threshold)
         return;
+    if (disableBoot) {
+        require("Storage").erase(".boot0");
+        Bangle.on("charging", function (charging) {
+            if (charging)
+                eval(require('Storage').read('bootupdate.js'));
+        });
+    }
     load("drained.app.js");
 }, interval * 60 * 1000);
diff --git a/apps/drained/boot.ts b/apps/drained/boot.ts
index faedd3153..46c6811fd 100644
--- a/apps/drained/boot.ts
+++ b/apps/drained/boot.ts
@@ -1,20 +1,20 @@
-const { battery = 5, interval = 10, disableBoot = false }: DrainedSettings
+const { battery: threshold = 5, interval = 10, disableBoot = false }: DrainedSettings
   = require("Storage").readJSON(`drained.setting.json`, true) || {};
 
-if(disableBoot){
-  require("Storage").erase(".boot0");
-
-  Bangle.on("charging", charging => {
-    if (charging)
-      eval(require('Storage').read('bootupdate.js'));
-  });
-}
-
 drainedInterval = setInterval(() => {
   if(Bangle.isCharging())
     return;
-  if(E.getBattery() > battery)
+  if(E.getBattery() > threshold)
     return;
 
+  if(disableBoot){
+    require("Storage").erase(".boot0");
+
+    Bangle.on("charging", charging => {
+      if (charging)
+        eval(require('Storage').read('bootupdate.js'));
+    });
+  }
+
   load("drained.app.js");
 }, interval * 60 * 1000);