How to store my old surface safely

For long‑term storage of older Surface devices, keeping the battery healthy is more important than leaving them always ready to power on immediately.

Recommended way to store old Surface devices:

1. Charge to about half, not full
   • Before putting a Surface away for a long time, charge the battery to around 50% rather than 100%.
   • Batteries kept at a high state of charge age faster and lose capacity more quickly.
2. Do not leave them plugged in 24/7
   • Avoid keeping a stored Surface permanently on the charger. Long periods at full charge accelerate battery aging.
   • For devices that must stay plugged in and in use, Microsoft recommends using Battery Limit Mode, but for storage the better approach is to unplug at ~50%.
3. Store in a cool, dry place
   • Keep the device in a cool, dry room, within the typical Surface operating/storage temperature range (avoid hot environments such as cars in the sun).
   • High temperatures significantly accelerate battery wear and can lead to capacity loss or even physical battery expansion.
4. Periodically check and top up
   • Over many months, the battery will slowly discharge even when the device is off.
   • Every few months, briefly power the device on and, if the battery has dropped very low, recharge it back to around 50% and power it off again.
   • This helps ensure that, when needed later, the device can still be powered on to access stored information.

Accessing information later:

• As long as the battery has not been allowed to sit at 0% for an extended period (which can lead to deep discharge and possible failure), the device should still power on when charged.
• If the device has been stored correctly (cool environment, ~50% charge, occasional checks), it should remain usable for later access to files.

For important data, also ensure that files are backed up elsewhere (for example, to another PC or external storage) so that access does not depend solely on the old device powering on.

References:

• Caring for your Surface battery
• Clean and care for your Surface