What Am I Using?

Battery draining quickly?

Compare active use with sleep or idle drain. Check battery usage and health, and record any sudden drops in charge.

Does it drain mainly while you are using it or while it is idle?

Compare two periods of similar length from a known charge level. Note which apps and accessories were active.

Find which activity uses the battery

High brightness, video and background transfers can increase power use.

Check battery usage for the period. Compare a lighter task at a comfortable brightness.
Update an unusually busy app through its official updater and check battery health if your device reports it.

Compare sleep with a full shutdown

Background work or a device waking repeatedly can use power during sleep.

Save work and compare charge lost during sleep with an equally long full shutdown.
Disconnect optional accessories for the comparison. Record the percentage change and duration for support.

Check battery health and back up files

A sudden reading change can indicate an inaccurate estimate or a battery that needs service.

Back up important files and check battery health or service status if offered.
If the case swells, stop charging and seek service. Give support the shutdown percentage and workload.