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We test battery life using the PC Mark 8 battery test that runs a looped routine of various day to day laptop tasks until the battery drops to 10% then extrapolates an estimated total battery life time. The test can be run at various screen brightnesses and power modes but we run at 100% brightness and balanced power mode.
The Helios 300 puts in an okay performance in this battery test, coming in just a little shy of some of its competitors. Dial the screen brightness down a little – it is quite a bright screen – and you should be getting parity with other machines of its type.
On a broader scale, the battery life you're getting here is clearly not all that useful. It's enough to get through most movies and a quick check of your email while on the go but you're unlikely to ever get more than three hours of use out of this laptop even with light use. As for gaming, this will see it run dry in an hour or less. Such is the compromise of most gaming laptops.
