Real-world battery endurance results for UK users

The LAVA Agni 4 comes with a 5,000mAh battery and 66W fast charging, and its behaviour during gaming and streaming shows how well it handles mixed, high-demand use. For UK users who rely on long daily uptime, these tests reveal what to expect in real scenarios.

In gaming sessions the Agni 4 draws noticeably more power because of its 120Hz AMOLED display and mid-range chipset. A 30-minute gaming run on popular high-load titles results in a visible drop, with the battery falling at a steady pace as the graphics engine pushes harder. During longer play the device warms up slightly, which further affects efficiency, though not to an uncomfortable level for handheld use.

A full hour of gaming is enough to bring down the battery by a significant margin, especially if brightness is kept high or mobile data is used. Most UK users gaming on Wi-Fi and medium brightness will still use a fair amount of power. In typical conditions the phone manages sustained performance without sudden dips, but the drain remains noticeable across the duration.

Extended gaming sessions of around two hours show the limits of the battery under pressure. The drop becomes more pronounced and the device starts regulating performance to maintain temperature. Users who frequently enjoy long gaming evenings will likely need to charge partway through, though the fast charging helps recover lost power quickly.

Streaming behaviour is more efficient, as the phone relies mainly on the display and decoding hardware rather than heavy graphics processing. One hour of video playback reduces the battery at a moderate and predictable rate, with lower drain when brightness is kept at comfortable indoor levels. Streaming over Wi-Fi is also more efficient than mobile data, which matches typical UK usage at home or on public networks.

Over multiple hours of continuous streaming the phone remains cool and stable. The 120Hz screen contributes to a slightly higher drain than 60Hz devices, but the overall impact is manageable. UK viewers using apps like YouTube, Netflix or BBC iPlayer can expect long sessions without worrying about sudden drops in remaining charge.

When combining gaming and streaming within the same day, the Agni 4 maintains respectable endurance. For example, an hour of gaming paired with two hours of streaming leads to a meaningful but not excessive drain. UK users following this pattern during commutes or downtime should be able to complete the day with some battery left, depending on screen brightness and network conditions.

General performance during mixed use is steady, with the battery behaving predictably even when switching between demanding apps. The device avoids major overheating and continues to offer smooth operation during casual multitasking. Heavy gaming remains the main source of accelerated drain, but everyday streaming and social apps have far milder impact.

Charging helps offset the drain quickly. With 66W fast charging, the Agni 4 can recover a large portion of its battery within a short break. UK users moving between home, work and travel will find it easy to top up between activities, reducing concerns over running out late in the day.

Overall the LAVA Agni 4 delivers reliable endurance for streaming, moderate use and mixed activities. Gaming-heavy users will see faster drain but can still manage multi-hour sessions with careful settings. UK users who depend on long battery life will find the phone consistent enough for daily routines, with fast charging covering heavier periods.