The HUAWEI Mate 8 sports a 4000 mAh high-capacity battery combined with a Kirin 950 chipset and SmartPower technology. The battery provides an incredible 1.65 days of use for heavy users (or 2.36 days for regular users). And when you're not using your HUAWEI Mate 8, power management technology helps to give you an unprecedented 22 days' standby time.*
With HUAWEI's cutting-edge 9V/2A fast-charging technology, you can fully charge your HUAWEI Mate 8 in just 2.5 hours. You can get a full day's use out of a 30-minute charge-perfect for when time is precious and power outlets are scarce.*
'Heart Beat' is an all-new smart power-saving technology introduced for the HUAWEI Mate 8. It continuously scans your apps to determine an optimum ratio between power usage and performance, reducing the power consumption of background apps by up to 50%.*

*Typical value.  Actual capacity may vary slightly.