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Wirelessly connected peripherals are a godsend to our daily lives. Battery-powered mice, trackpads, and keyboards can function for several weeks to many months on a single full charge.

But Apple doesn’t display this charge level in an obvious place, as it does with a laptop’s battery level. You can find the current charge of most peripherals when a wireless device is turned on and awake. On some equipment, that means moving your finger on it, moving it around, or tapping a key. Here are a few places to check the levels:

• Open the Control Center at the top right of your screen and click Bluetooth. Any connected devices show their current charge level as a graphic and with a numeric percentage. This also shows charges for connected headphones and earbuds.

• Open the Bluetooth preference pane in System Preferences. All connected Bluetooth devices show their charge as a graphic.

Depending on your hardware, you may receive alerts when the battery level is low.