diff --git a/plugins/chromecast/src/main.ts b/plugins/chromecast/src/main.ts
index 60676b8cb..ff5c5b2f6 100644
--- a/plugins/chromecast/src/main.ts
+++ b/plugins/chromecast/src/main.ts
@@ -88,7 +88,10 @@ class CastDevice extends ScryptedDeviceBase implements MediaPlayer, Refresh, Eng
         }
 
         client.removeAllListeners();
-        client.close();
+        try {
+          client.close();
+        } catch (e) {
+        }
       }
       client.client.on('close', cleanup);
       client.on('error', err => {
@@ -149,6 +152,14 @@ class CastDevice extends ScryptedDeviceBase implements MediaPlayer, Refresh, Eng
   }
 
   async load(media: string | MediaObject, options: MediaPlayerOptions) {
+    if (this.mediaPlayerPromise) {
+      try {
+        (await this.mediaPlayerPromise).close();
+      } catch (e) {
+      }
+      this.mediaPlayerPromise = undefined;
+      this.mediaPlayerStatus = undefined;
+    }
     let url: string;
     let urlMimeType: string;
 
@@ -341,15 +352,7 @@ class CastDevice extends ScryptedDeviceBase implements MediaPlayer, Refresh, Eng
                 });
               })
 
-              player.getStatus((err, status) => {
-                if (err) {
-                  reject(err);
-                  return;
-                }
-                this.mediaPlayerStatus = status;
-                this.updateState();
-                resolve(player);
-              })
+              resolve(player);
             });
           });
         });
diff --git a/plugins/core/fs/examples/chromecast-view-camera.ts b/plugins/core/fs/examples/chromecast-view-camera.ts
index 436049edb..e7373bb54 100644
--- a/plugins/core/fs/examples/chromecast-view-camera.ts
+++ b/plugins/core/fs/examples/chromecast-view-camera.ts
@@ -29,7 +29,7 @@ class ChromecastViewCameraExample implements StartStop {
     }
     async stop() {
         device.running = false;
-        return chromecast.stop();
+        await chromecast.stop();
     }
 }
 
diff --git a/plugins/coreml/src/coreml/__init__.py b/plugins/coreml/src/coreml/__init__.py
index d8389e29f..33bdf9f15 100644
--- a/plugins/coreml/src/coreml/__init__.py
+++ b/plugins/coreml/src/coreml/__init__.py
@@ -58,11 +58,11 @@ class CoreMLPlugin(PredictPlugin, scrypted_sdk.BufferConverter, scrypted_sdk.Set
         else:
             out_dict = self.model.predict({'image': input, 'confidenceThreshold': self.minThreshold })
 
-        coordinatesList = out_dict['coordinates']
+        coordinatesList = out_dict['coordinates'].astype(float)
 
         objs = []
 
-        for index, confidenceList in enumerate(out_dict['confidence']):
+        for index, confidenceList in enumerate(out_dict['confidence'].astype(float)):
             values = confidenceList
             maxConfidenceIndex = max(range(len(values)), key=values.__getitem__)
             maxConfidence = confidenceList[maxConfidenceIndex]
diff --git a/plugins/prebuffer-mixin/src/main.ts b/plugins/prebuffer-mixin/src/main.ts
index 72a54e025..cfa80bf92 100644
--- a/plugins/prebuffer-mixin/src/main.ts
+++ b/plugins/prebuffer-mixin/src/main.ts
@@ -10,7 +10,7 @@ import { addTrackControls, parseSdp } from '@scrypted/common/src/sdp-utils';
 import { SettingsMixinDeviceBase, SettingsMixinDeviceOptions } from "@scrypted/common/src/settings-mixin";
 import { sleep } from '@scrypted/common/src/sleep';
 import { createFragmentedMp4Parser, createMpegTsParser, StreamChunk, StreamParser } from '@scrypted/common/src/stream-parser';
-import sdk, { BufferConverter, DeviceProvider, DeviceState, EventListenerRegister, FFmpegInput, H264Info, MediaObject, MediaStreamDestination, MediaStreamOptions, MixinProvider, RequestMediaStreamOptions, ResponseMediaStreamOptions, ScryptedDevice, ScryptedDeviceType, ScryptedInterface, ScryptedMimeTypes, Setting, Settings, SettingValue, VideoCamera, VideoCameraConfiguration } from '@scrypted/sdk';
+import sdk, { BufferConverter, ChargeState, DeviceBase, DeviceProvider, DeviceState, EventListenerRegister, FFmpegInput, H264Info, MediaObject, MediaStreamDestination, MediaStreamOptions, MixinProvider, RequestMediaStreamOptions, ResponseMediaStreamOptions, ScryptedDevice, ScryptedDeviceType, ScryptedInterface, ScryptedMimeTypes, Setting, Settings, SettingValue, VideoCamera, VideoCameraConfiguration } from '@scrypted/sdk';
 import { StorageSettings } from '@scrypted/sdk/storage-settings';
 import crypto from 'crypto';
 import { once } from 'events';
@@ -105,7 +105,10 @@ class PrebufferSession {
   rtspServerPath: string;
   rtspServerMutedPath: string;
 
-  constructor(public mixin: PrebufferMixin, public advertisedMediaStreamOptions: ResponseMediaStreamOptions, public stopInactive: boolean) {
+  batteryListener: EventListenerRegister;
+  chargerListener: EventListenerRegister;
+
+  constructor(public mixin: PrebufferMixin, public advertisedMediaStreamOptions: ResponseMediaStreamOptions, public enabled: boolean, public forceBatteryPrebuffer: boolean) {
     this.storage = mixin.storage;
     this.console = mixin.console;
     this.mixinDevice = mixin.mixinDevice;
@@ -129,6 +132,12 @@ class PrebufferSession {
       this.rtspServerMutedPath = crypto.randomBytes(8).toString('hex');
       this.storage.setItem(rtspServerMutedPathKey, this.rtspServerMutedPath);
     }
+
+    this.handleChargingBatteryEvents();
+  }
+
+  get stopInactive() {
+    return !this.enabled || this.shouldDisableBatteryPrebuffer();
   }
 
   get canPrebuffer() {
@@ -206,6 +215,14 @@ class PrebufferSession {
       parserSession.kill(new Error('rebroadcast disabled'));
       this.clearPrebuffers();
     });
+    if (this.batteryListener) {
+      this.batteryListener.removeListener();
+      this.batteryListener = null;
+    }
+    if (this.chargerListener) {
+      this.chargerListener.removeListener();
+      this.chargerListener = null;
+    }
   }
 
   ensurePrebufferSession() {
@@ -934,6 +951,46 @@ class PrebufferSession {
     }, 10000);
   }
 
+  handleChargingBatteryEvents() {
+    if (!this.mixin.interfaces.includes(ScryptedInterface.Charger) ||
+        !this.mixin.interfaces.includes(ScryptedInterface.Battery)) {
+      return;
+    }
+
+    const checkDisablePrebuffer = async () => {
+      if (this.stopInactive) {
+        this.console.log(this.streamName, 'low battery or not charging, prebuffering and rebroadcasting will only work on demand')
+        if (!this.activeClients && this.parserSessionPromise) {
+          this.console.log(this.streamName, 'terminating rebroadcast due to low battery or not charging')
+          const session = await this.parserSessionPromise;
+          session.kill(new Error('low battery or not charging'));
+        }
+      } else {
+        this.ensurePrebufferSession();
+      }
+    }
+
+    const id = this.mixin.id;
+    if (!this.batteryListener) {
+      this.batteryListener = systemManager.listenDevice(id, ScryptedInterface.Battery, () => checkDisablePrebuffer());
+    }
+    if (!this.chargerListener) {
+      this.chargerListener = systemManager.listenDevice(id, ScryptedInterface.Charger, () => checkDisablePrebuffer());
+    }
+  }
+
+  shouldDisableBatteryPrebuffer(): boolean | null {
+    if (!this.mixin.interfaces.includes(ScryptedInterface.Battery)) {
+      return null;
+    }
+    if (this.forceBatteryPrebuffer) {
+      return false;
+    }
+    const lowBattery = this.mixin.batteryLevel == null || this.mixin.batteryLevel < 20;
+    const hasCharger = this.mixin.interfaces.includes(ScryptedInterface.Charger);
+    return !hasCharger || lowBattery || this.mixin.chargeState !== ChargeState.Charging;
+  }
+
   async handleRebroadcasterClient(options: {
     findSyncFrame: boolean,
     isActiveClient: boolean,
@@ -1497,8 +1554,6 @@ class PrebufferMixin extends SettingsMixinDeviceBase<VideoCamera> implements Vid
       }
     }
 
-    const isBatteryPowered = this.mixinDeviceInterfaces.includes(ScryptedInterface.Battery);
-
     if (!enabledIds.length)
       this.online = true;
 
@@ -1524,22 +1579,27 @@ class PrebufferMixin extends SettingsMixinDeviceBase<VideoCamera> implements Vid
       }
       const name = mso?.name;
       const enabled = enabledIds.includes(id);
-      const stopInactive = (isBatteryPowered && !mso.allowBatteryPrebuffer) || !enabled;
-      session = new PrebufferSession(this, mso, stopInactive);
+      session = new PrebufferSession(this, mso, enabled, mso.allowBatteryPrebuffer);
       this.sessions.set(id, session);
 
-      if (isBatteryPowered && !mso.allowBatteryPrebuffer) {
-        this.console.log('camera is battery powered, prebuffering and rebroadcasting will only work on demand.');
+      if (!enabled) {
+        this.console.log('stream', name, 'is not enabled and will be rebroadcast on demand.');
         continue;
       }
 
-      if (!enabled) {
-        this.console.log('stream', name, 'will be rebroadcast on demand.');
-        continue;
+      if (session.shouldDisableBatteryPrebuffer()) {
+        this.console.log('camera is battery powered and either not charging or on low battery, prebuffering and rebroadcasting will only work on demand.');
       }
 
       (async () => {
         while (this.sessions.get(id) === session && !this.released) {
+          if (session.shouldDisableBatteryPrebuffer()) {
+            // since battery devices could be eligible for prebuffer, check periodically
+            // in the event the battery device becomes eligible again
+            await new Promise(resolve => setTimeout(resolve, 60000));
+            continue;
+          }
+
           session.ensurePrebufferSession();
           let wasActive = false;
           try {