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XPS 12 User’s Guide

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Battery problem

Problems Possible causes Possible solutions
Battery does not charge The cable connections may be loose.
  1. Check the cable, connectors, and power adapter to ensure proper connectivity.
  2. Verify that the wall outlet is functioning by connecting another device.
The tablet's temperature is below 0°C (32°F) or higher than 35°C (95°F). Charge the battery in an ambient temperature between 0°C to 35°C (32°F to 95°F).
The battery or power adapter is damaged. Contact Dell. See Contacting Dell.
Battery does not charge when the battery charge is at 95% to 99% The battery is in maintenance mode to prolong battery life.
Battery drains quickly even when the tablet is in standby mode If the tablet is not in the range of a network it can connect to, the tablet continues to try to locate a base station and drains the battery.
  • Temporarily turn off the tablet.
  • Move the tablet in range of a network it can connect to or temporarily turn off the wireless connection on your tablet.
  • Disable Wi-Fi or mobile broadband when not in range of any wireless networks.
  • Enable airplane mode.
Battery charge values are not accurate  
  • Press and hold the power button for 10 seconds to forcefully turn off the tablet, and force the system to obtain a new reference point for the battery charge value (do not follow the regular Windows shutdown process).
  • Perform a full battery charge/discharge cycle to recalibrate the battery charge value by charging the tablet until the battery is fully charged and run the battery power until the tablet shuts itself down.
Battery is fully charged (battery charge is at 100%) but the battery-charging status light is on
Battery charge jumps from 90% to 100% when the battery is charging

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