Our hands-on testing shows that the Reolink Argus PT can easily last a month under real-world conditions. For comparison, this is longer than we've seen from Arlo Pro 4 or Ring Spotlight Camera. While it seems counterintuitive, we're glad that Reolink doesn't list a specific battery life for its cameras—though they list a battery capacity of 6,000 mAh for the Argus PT. Instead of presenting a firm number based on testing in a lab—like most manufacturers—Reolink states that things like temperature, recording frequency, and live viewing will affect your battery life.