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Title: Surface battery testing and estimated performance - Microsoft Support

Description: Find out more about how Microsoft tests Surface devices to provide an estimate of battery performance. This article includes information on testing parameters and estimated battery performances by Surface device.

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Battery & charging	https://aka.ms/en-us/surface/how-to-charge-surface-d03cc785-30d5-2263-5eda-1733abd6e3ac
Charge Surface	https://aka.ms/en-us/surface/how-to-charge-surface-d03cc785-30d5-2263-5eda-1733abd6e3ac
Smart charging	https://aka.ms/en-us/surface/smart-charging-on-surface-dda48e48-950b-421c-a436-c48c55e158c4
Surface power states	https://aka.ms/en-us/surface/surface-device-power-states-f3a90bda-fd41-65c1-9c9d-3cd0a41c2ac2
Power supplies & requirements	https://aka.ms/en-us/surface/surface-charging-requirements-and-power-supplies-0d9d51d4-594b-464d-9086-c90f35b80c01
Touch current and Surface	https://aka.ms/en-us/surface/touch-current-and-surface-devices-4ff2f342-af70-4c97-b304-6662ecd1d66c
USB-C charging	https://aka.ms/en-us/surface/usb-c-and-fast-charging-for-surface-d320ab19-e4ed-c36d-7458-7d7aec69d34a
USB-C and Fast Charging	https://aka.ms/en-us/surface/usb-c-and-fast-charging-for-surface-d320ab19-e4ed-c36d-7458-7d7aec69d34a
Surface 45W USB-C Wall Charger	https://aka.ms/en-us/surface/use-surface-45w-usb-c-wall-charger-1f75e2bf-e0a0-472d-9305-922c71fc10c2
Battery life & longevity	https://aka.ms/en-us/surface/maximize-your-surface-battery-life-45479867-a7fa-33dd-fc4d-6762e9b3b11a
Maximize battery life	https://aka.ms/en-us/surface/maximize-your-surface-battery-life-45479867-a7fa-33dd-fc4d-6762e9b3b11a
Estimated battery performance	https://aka.ms/en-us/surface/surface-battery-testing-and-estimated-performance-f038487c-a6c8-407d-b0b0-5737ac5e8397
Battery care	https://aka.ms/en-us/surface/caring-for-your-surface-battery-9ccdfa7b-d074-f629-425c-1c090ac66bed
Troubleshooting	https://aka.ms/en-us/surface/surface-battery-won-t-charge-or-surface-won-t-run-on-battery-1886ca81-2516-2a44-4dfe-a879102a2278
Battery won't charge	https://aka.ms/en-us/surface/surface-battery-won-t-charge-or-surface-won-t-run-on-battery-1886ca81-2516-2a44-4dfe-a879102a2278
Power supply doesn't work	https://aka.ms/en-us/surface/what-to-do-if-your-surface-power-supply-or-charger-doesn-t-work-41742e23-8489-fb03-dcef-9f9a777e8df1
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Battery & charging	https://aka.ms/en-us/surface/how-to-charge-surface-d03cc785-30d5-2263-5eda-1733abd6e3ac
Charge Surface	https://aka.ms/en-us/surface/how-to-charge-surface-d03cc785-30d5-2263-5eda-1733abd6e3ac
Smart charging	https://aka.ms/en-us/surface/smart-charging-on-surface-dda48e48-950b-421c-a436-c48c55e158c4
Surface power states	https://aka.ms/en-us/surface/surface-device-power-states-f3a90bda-fd41-65c1-9c9d-3cd0a41c2ac2
Power supplies & requirements	https://aka.ms/en-us/surface/surface-charging-requirements-and-power-supplies-0d9d51d4-594b-464d-9086-c90f35b80c01
Touch current and Surface	https://aka.ms/en-us/surface/touch-current-and-surface-devices-4ff2f342-af70-4c97-b304-6662ecd1d66c
USB-C charging	https://aka.ms/en-us/surface/usb-c-and-fast-charging-for-surface-d320ab19-e4ed-c36d-7458-7d7aec69d34a
USB-C and Fast Charging	https://aka.ms/en-us/surface/usb-c-and-fast-charging-for-surface-d320ab19-e4ed-c36d-7458-7d7aec69d34a
Surface 45W USB-C Wall Charger	https://aka.ms/en-us/surface/use-surface-45w-usb-c-wall-charger-1f75e2bf-e0a0-472d-9305-922c71fc10c2
Battery life & longevity	https://aka.ms/en-us/surface/maximize-your-surface-battery-life-45479867-a7fa-33dd-fc4d-6762e9b3b11a
Maximize battery life	https://aka.ms/en-us/surface/maximize-your-surface-battery-life-45479867-a7fa-33dd-fc4d-6762e9b3b11a
Estimated battery performance	https://aka.ms/en-us/surface/surface-battery-testing-and-estimated-performance-f038487c-a6c8-407d-b0b0-5737ac5e8397
Battery care	https://aka.ms/en-us/surface/caring-for-your-surface-battery-9ccdfa7b-d074-f629-425c-1c090ac66bed
Troubleshooting	https://aka.ms/en-us/surface/surface-battery-won-t-charge-or-surface-won-t-run-on-battery-1886ca81-2516-2a44-4dfe-a879102a2278
Battery won't charge	https://aka.ms/en-us/surface/surface-battery-won-t-charge-or-surface-won-t-run-on-battery-1886ca81-2516-2a44-4dfe-a879102a2278
Power supply doesn't work	https://aka.ms/en-us/surface/what-to-do-if-your-surface-power-supply-or-charger-doesn-t-work-41742e23-8489-fb03-dcef-9f9a777e8df1
Caring for your Surface battery	https://aka.ms/en-us/surface/caring-for-your-surface-battery-9ccdfa7b-d074-f629-425c-1c090ac66bed
Maximize your Surface battery life	https://aka.ms/en-us/surface/maximize-your-surface-battery-life-45479867-a7fa-33dd-fc4d-6762e9b3b11a
Battery saving tips	https://aka.ms/en-us/windows/battery-saving-tips-for-windows-a850d64d-ee8e-c8d2-6c75-8ffe6ea3ea99
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