The Doogee V Max Plus, a rugged Android phone with impressive battery life, is designed for those who need a device that can withstand harsh environments and go the distance without needing a recharge. With a massive 22,000 mAh battery, it can last up to a week on a single charge. While its performance may not be as robust as flagship devices, it holds its own in the midrange space.

Source: https://www.zdnet.com/article/the-most-rugged-android-phone-ive-tested-also-has-a-week-long-battery-life/#ftag=RSSbaffb68