Let's begin with the detailed information of original Microsoft Surface Pro 2 battery:
- Battery rating: 7.4V
- Battery capacity: 5670mAh (42Wh)
- Battery cells: 6-cell
- Type: rechargeable Li-polymer original battery
- Battery color: White
Here are some ways you can help make your battery last longer:
- Reduce the screen brightness. Open the Settings charm, and tap or click Screen, and move the slider. The brighter the screen, the more power it uses.
- Turn off Wi-Fi. If you don’t need Wi-Fi for a while, you can turn it off to conserve battery life. To do this, open the Settings charm, tap or click the wireless network
icon, and slide Wi-Fi to Off. - Turn on Airplane mode. If you don’t need Wi-Fi and Bluetooth for a while, this is something else you can do to conserve battery life. Open the Settings charm, tap or click the wireless network icon, and slide Airplane mode to On.
- Turn off or remove devices that you aren't using. Many USB devices use power just by being connected, so you might want to unplug these devices when you're not using them.
- Turn off mobile broadband. If you have a Surface 2 model with mobile broadband (4G), you can switch off your mobile broadband connection to conserve battery power. Open the Settings charm, tap or click the wireless network icon, and slide Mobile broadband to Off.
- Use a powered USB hub. Using an unpowered USB device can quickly drain your battery. Plug the accessory into a powered USB hub plugged into an electrical outlet, and then plug the hub into your Surface.
Source from www.microsoft.com
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