Charged
Frequently Asked Questions

Open Charged, go to Settings, and choose Connect under the provider you use. You can connect more than one at a time.

Garmin shows a Historical Data option on its authorization screen. Turning it on lets Charged import your last month of activities right away, so your dashboard fills in instead of waiting for your next ride. Connecting Intervals.icu or Wahoo does this automatically.

Garmin users who left it off can turn it on later. Go to Garmin Connect's website → Profile & Account (top right) → Account Settings → Account Information, find "Charged: Sensor Battery Alerts" in the Connected Apps list, and toggle Historical Data on.

Yes. Tap the radio-waves icon in the toolbar at the top of your dashboard to run a Quick Scan.

Sensors sleep to save power, so wake yours before scanning: put on the strap, spin a crank, or turn a wheel. Then tap Scan and Charged reads the battery of every nearby sensor on the spot. Save any reading to put it on your dashboard next to your synced activities.

Works as a fast pre-ride check. For some devices it's the only way to see the battery percentage. Rides recorded on a Wahoo head unit often show a power meter or radar with status only like OK or Low. Use Quick Scan to fill in the number.

Yes. On the home screen, the small widget shows a quick status ("All OK" or what needs attention), the medium widget shows battery dials for up to four sensors, and the large widget fits up to twelve. On the lock screen, Charged displays a battery status panel below the clock showing the sensor that most needs attention, or a one-line summary right by the clock. Add them the usual way: press and hold your home or lock screen and look for Charged in the widget gallery. Tapping any widget opens your dashboard.

Yes, for sensors that keep their own hour counter. Open the sensor's detail view and look for a line like "Battery use: 173h cumulative" above the manufacturer row. Those are real hours on the battery that's in there now, including rides from before you found Charged, and it resets when you drop in a fresh one.

It needs a sensor that tracks hours and an activity recorded by a Garmin. Today that's the Garmin Cadence Sensor 2, HRM-Dual, Rally 200 pedals, and Stages power meters. More are on the way.

Open the device's detail view by clicking its card, type a new name, and click Save.

Yes. This can happen when a sensor reports a different name over Bluetooth than it does through a FIT file. Open either card's detail view and use Merge to combine them into one. Merged devices can always be unmerged again later from the same view.

Yes — open the device's detail view and use Hide to remove its card from your dashboard while keeping its history. Note that hiding only affects what you see: a hidden device is still monitored and will still send low-battery alerts. To silence alerts for a device instead, see muting notifications.

Yes. Open the device's detail view and check Mute notifications. That device will no longer trigger or appear in any battery alerts, but its card, chart, and history stay right where they are. Uncheck the box any time to turn alerts back on. Muting is per device and only affects notifications.

To remove one reading, open the device's detail view, expand View or Delete Readings, and use the trash icon next to it.

To retire a device entirely, if you sold it or stopped using it for example, open its detail view, type DELETE in the name field, then click the Delete button that appears. If you change your mind, "Undelete previously deleted cards" at the bottom of your dashboard brings it back and allows new readings to once again sync to this card.

Charged may have started a new, empty account if you signed in a different way than you did when you first set Charged up. Your history is safe in the original.

If you sign out and sign back in the way you originally signed in to Charged, you should see your complete dashboard. If you'd like to keep using the new sign-in, or use both, Charged can join your accounts. While signed in to the empty account, connect the same activity source (Garmin, Wahoo, or Intervals.icu) you connected in the original, and Charged joins the two accounts automatically. From then on, either sign-in opens the same account.

If your devices still don't appear, contact us and we'll sort it out.

Quick Scan needs a browser with Web Bluetooth support. On Android, Charged runs through your default browser, so if that browser doesn't support it, the scan button stays hidden.

Brave includes Web Bluetooth but ships it turned off. The scan button still appears, and a scan reports no sensors found. In the Brave app, go to brave://flags, search for Web Bluetooth, enable it, and relaunch Brave.

Battery levels come from the bike computer or watch that recorded the activity, when they don't keep details, Charged can't display them. Most report their own battery, but some don't including Garmin's Vivoactive 4 and 5, Venu 2 and Venu Sq, and the COROS PACE 4.

Some leave sensor details out too. Activities recorded on a COROS don't keep sensor battery details, so an HR strap or other paired sensor's battery level can't be displayed.

Sensors also differ. Some send a percentage, others only a status like OK or Low.

The file format matters too. Intervals.icu syncs FIT files from bike computers and watches, and those usually carry battery levels. It also syncs activities from phone apps and other services, which arrive as GPX or TCX with no battery data. If you have a choice, sync the activity your bike computer or watch recorded.

For supported bluetooth compatible devices, you can always check the sensor over Bluetooth and save the reading to your dashboard.

Usually, yes. New sensors come out all the time, and one Charged hasn't seen before can show up under a generic name, or not at all.

In the Charged iPhone and Android apps, run a scan and tap "Help find a missing sensor" at the bottom. It takes about ten seconds and looks for nearby sensors that Charged doesn't support yet. When it finishes you'll get a box to send details of what you expected to see. Put the brand and model in there and tap Send.

If a scan turns up nothing at all, Charged offers an Extended Scan instead. It takes up to two minutes and tries harder to reach sensors. It ends with the same send details option. You can also start an Extended Scan by pressing and holding the "Help find a missing sensor" button.

Charged considers the kind of battery inside each device: a heart rate strap running on a coin cell drains slowly — at 20% it may still have weeks or months of use left, so Charged calls that OK. A rechargeable device like a radar drains its battery faster, and at 20% it might not finish your next long ride, so Charged flags it earlier. Some devices also get product-specific tuning — radar warning levels, for example, are set by how those devices actually behave on real rides. Charged intends Low to mean "charge or replace soon" for every device on your dashboard. Charged may warn you earlier than your device's firmware does, but it will also label a device Low whenever the firmware says so.

Charged prioritizes Low and Fair batteries at the top of the display. After that, devices sort by date with the most recently seen ordered first. After date ordering, devices used during the same activity are sorted alphabetically.

Those off-the-line dots are sensor battery checks. Many sensors round their own report to big steps like 100%, 70%, or 30%. The line is smoother because Charged fills in the drain between your activities, so it's more consistent than the number the sensor provides. A small gap is normal.

First, check that notifications are enabled for Charged in your device settings (iOS, Android, or your browser).

Next, make sure notifications are enabled in Charged's Settings menu. Try turning notifications off and back on.

Finally, open the sensor's detail view and make sure Mute notifications isn't checked for that device.

If the main screen of Charged has no devices and is asking you to connect a source you already connected, you may have signed in with a different Apple or Google account than you used before. Here's the fix.

In the app, go to Settings → Delete Account. See our account deletion page for details.