If your smartphone has been experiencing unusual battery drain of late, you might be wondering if something is wrong with it. You aren't alone as Android users are facing the same issue as you due to a recent WhatsApp update. WhatsApp recently updated the app on Android that lets users protect their conversation with a fingerprint lock. Whatsapp uses the traditional fingerprint sensor or an in-display fingerprint sensor on Android smartphones to unlock the messaging app.
Users on Reddit, Twitter and other social media platforms have been reporting a massive battery drain on smartphones. This is not exclusive to any brand of phones as it was being experienced by OnePlus, Samsung, Xiaomi and other smartphone users. After investigating, users noticed that WhatsApp was drawing more power from the battery than usual. In some cases, the application would draw 30-40 per cent of the battery while being idle. This is also not exclusive to Android 10 as users with Android 9 Pie build were also experiencing the same.
If your WhatsApp version is 2.19.308, we recommend you downgrade to the previous edition by downloading an APK from one of the hosting websites. Alternatively, as suggested by Reddit users, you can delete and re-install the application from the Play Store. As a last resort, you can always turn on the battery saving mode on your smartphone that will prevent the application from carrying out unnecessary background activity. However, turning on the battery saving mode will also result in missing out on the latest messages since it turns off the background activity.
WhatsApp is aware of the current issue and should be patching it in a future update soon. For now, you can try any of the methods mentioned above to resolve the battery drain issue temporarily. Make sure you take a backup of your conversations before deleting the application though.