diff --git a/types/cordova-plugin-battery-status/cordova-plugin-battery-status-tests.ts b/types/cordova-plugin-battery-status/cordova-plugin-battery-status-tests.ts
index bc2d516697..dbad990b8d 100644
--- a/types/cordova-plugin-battery-status/cordova-plugin-battery-status-tests.ts
+++ b/types/cordova-plugin-battery-status/cordova-plugin-battery-status-tests.ts
@@ -1,12 +1,29 @@
+function eventCallBack(ev: BatteryStatusEvent) {
+    console.log('Battery level is ' + ev.level);
+}
 window.addEventListener('batterystatus', (ev: BatteryStatusEvent) => { console.log('Battery level is ' + ev.level); });
 window.addEventListener('batterystatus', (ev) => { console.log('Battery level is ' + ev.level); });
 window.addEventListener('batterycritical', (ev) => { console.log('Battery is critical: ' + ev.level); });
 window.addEventListener('batterylow', (ev) => { console.log('Battery is low: ' + ev.level); });
 
-window.removeEventListener('batterystatus', (ev: BatteryStatusEvent) => { console.log('Remove: Battery level is ' + ev.level); });
-window.removeEventListener('batterystatus', (ev) => { console.log('Remove: Battery level is ' + ev.level); });
-window.removeEventListener('batterycritical', (ev) => { console.log('Remove: Battery is critical: ' + ev.level); });
-window.removeEventListener('batterylow', (ev) => { console.log('Remove: Battery is low: ' + ev.level); });
+window.addEventListener('baterystatus', eventCallBack);
+window.addEventListener('batterycritical', eventCallBack);
+window.addEventListener('batterylow', eventCallBack);
 
-window.addEventListener('batterycritical',
-    () => { alert('Battery is critical low!'); });
\ No newline at end of file
+window.removeEventListener('batterystatus', eventCallBack);
+window.removeEventListener('batterycritical', eventCallBack);
+window.removeEventListener('batterylow', eventCallBack);
+
+window.addEventListener('batterycritical', () => { alert('Battery is critical low!'); });
+window.addEventListener('batterylow', () => { alert('Battery is low!'); });
+
+function batteryCriticalCallback() {
+    alert('Battery is critical low!');
+}
+
+function batteryLowCallback() {
+    alert('Battery is critical low!');
+}
+
+window.addEventListener('batterycritical', batteryCriticalCallback);
+window.addEventListener('batterylow', batteryLowCallback);
\ No newline at end of file
diff --git a/types/cordova-plugin-battery-status/index.d.ts b/types/cordova-plugin-battery-status/index.d.ts
index f120d3d7e9..0cdf729d30 100644
--- a/types/cordova-plugin-battery-status/index.d.ts
+++ b/types/cordova-plugin-battery-status/index.d.ts
@@ -26,8 +26,6 @@ interface Window {
     onbatterystatus: (type: BatteryStatusEvent) => void;
     onbatterycritical: (type: BatteryStatusEvent) => void;
     onbatterylow: (type: BatteryStatusEvent) => void;
-    removeEventListener<K extends keyof WindowEventMap>(type: K, listener: (ev: WindowEventMap[K]) => any, useCapture?: boolean): void;
-    removeEventListener(type: string, listener: (ev: Event) => any, useCapture?: boolean): void;
 }
 
 /** Object, that passed into battery event listener */
diff --git a/types/cordova-plugin-inappbrowser/cordova-plugin-inappbrowser-tests.ts b/types/cordova-plugin-inappbrowser/cordova-plugin-inappbrowser-tests.ts
index 12914e4110..d717e85ea4 100644
--- a/types/cordova-plugin-inappbrowser/cordova-plugin-inappbrowser-tests.ts
+++ b/types/cordova-plugin-inappbrowser/cordova-plugin-inappbrowser-tests.ts
@@ -5,17 +5,28 @@
 // is similar to native window.open signature, so the compiler can's
 // select proper overload, but we cast result to InAppBrowser manually.
 var iab = <InAppBrowser>window.open('google.com', '_self');
+
 iab.addEventListener('loadstart', (ev: InAppBrowserEvent) => { console.log('Start opening ' + ev.url); });
 iab.addEventListener('loadstart', (ev) => { console.log('loadstart' + ev.url); });
 iab.addEventListener('loadstop', (ev) => { console.log('loadstop' + ev.code); });
 iab.addEventListener('loaderror', (ev) => { console.log('loaderror' + ev.code); });
 iab.addEventListener('exit', (ev) => { console.log('exit' + ev.code); });
 
-iab.removeEventListener('loadstart', (ev: InAppBrowserEvent) => { console.log('Remove loadstart' + ev.url); });
-iab.removeEventListener('loadstart', (ev) => { console.log('Remove loadstart' + ev.url); });
-iab.removeEventListener('loadstop', (ev) => { console.log('Remove loadstop ' + ev.code); });
-iab.removeEventListener('loaderror', (ev) => { console.log('Remove loaderror ' + ev.code); });
-iab.removeEventListener('exit', (ev) => { console.log('Remove exit ' + ev.code); });
+function inAppBrowserCallBack(ev: InAppBrowserEvent) {
+    console.log('InAppBrowser callback ' + ev.url);
+}
+
+iab.addEventListener('loadstart', inAppBrowserCallBack);
+iab.addEventListener('loadstart', inAppBrowserCallBack);
+iab.addEventListener('loadstop', inAppBrowserCallBack);
+iab.addEventListener('loaderror', inAppBrowserCallBack);
+iab.addEventListener('exit', inAppBrowserCallBack);
+
+iab.removeEventListener('loadstart', inAppBrowserCallBack);
+iab.removeEventListener('loadstop', inAppBrowserCallBack);
+iab.removeEventListener('loaderror', inAppBrowserCallBack);
+iab.removeEventListener('exit', inAppBrowserCallBack);
+
 iab.show();
 iab.executeScript(
     { code: "console.log('Injected script in action')" },