Where to Find Your Tracker's Battery Percentage

Applies to: the Hapn mobile app and the web app at app.gethapn.com.

Contents

• Overview
• Viewing Battery on Mobile App and Web App
• Understanding Battery Information
• Trackers with External Battery Cases
• Setting Up Low Battery Alerts
• Troubleshooting

Overview

Battery-powered trackers like the GL300, GL501/521 Asset Trackers, and others display their current battery percentage in the Hapn platform. This information helps you monitor when your tracker needs charging to maintain reliable tracking.

Trackers that display battery percentage:

• GL300 Portable Tracker
• GL501/521 Asset Trackers
• Other rechargeable portable models

Note: OBD and hardwired trackers are powered by your vehicle and don't display battery percentages.

Viewing Battery on Mobile App and Web App

1. On the tracker's card: tap the tracker on the Live screen (mobile app) or select it on the Live Map (web). The battery percentage is shown on its card, and Est. Remaining gives a rough idea of how long it will last.
2. In the asset list: each battery tracker's card in the list shows a Battery reading.

Understanding Battery Information

Battery Icon Indicators

• Green battery icon: Good charge level (above 50%)
• Yellow battery icon: Medium charge level (20-50%)
• Red battery icon: Low charge level (below 20%)
• Lightning bolt icon: Tracker is currently charging

When to Charge

• GL300: Charge when battery drops below 20%
• GL501/521: Can run for weeks, but charge when below 20%
• Extended battery cases: Monitor both external and internal battery levels

Trackers with Extended Battery Cases

If your tracker uses an extended battery case (M4 Pro, M6 Pro XL), you can enable viewing of both external and internal battery percentages.

Enabling Extended Battery Monitoring

1. Open the tracker's settings: on the mobile app, tap the tracker on the Live screen, then Settings on its card; on the web, select the tracker on the Live Map, then Settings. Open Advanced Settings → Hardware Settings
2. Find "Connected to external battery"
3. Toggle the setting to ON
4. Save your changes

What You'll See After Enabling

• External battery case percentage (powers the tracker first)
• Internal tracker battery percentage (backup power)

How Extended Batteries Work

• The external battery powers your tracker first
• When the external battery reaches 0%, the tracker switches to internal battery
• Both percentages help you plan charging schedules

Setting Up Low Battery Alerts

Stay informed about your tracker's battery status with automatic alerts:

1. Open alert rules: on the web, go to Alerts & Issues → Manage alerts → Create alert rule; on the mobile app, tap Issues → the gear icon (Alert rules) → Create
2. Select "Low Battery" as the alert type
3. Set your preferred threshold (recommended: 20%)
4. Choose notification method (email, SMS, or app notification)
5. Save the alert

For detailed alert setup instructions, see our guide: How to Set Up Alerts and Notifications

Troubleshooting

If You Don't See Battery Information

• Check tracker type: OBD and hardwired trackers don't show battery percentages
• Verify tracker is online: Battery info only updates when the tracker has connectivity
• Refresh the app: Close and reopen the mobile app or refresh the web browser
• Check tracker model: Some older models may not report battery percentage

If Battery Percentage Seems Incorrect

• Allow time for updates: Battery levels update with each location report
• Check charging status: Recently charged trackers may take time to show accurate levels
• Verify tracker placement: Poor connectivity can affect battery reporting accuracy

Seeing Battery Level Over Time

A single percentage only tells you where the battery is right now. To see how it got there, open Reports > Tracker Status and Health on the web app, hover over a tracker's Battery reading and click the small open icon that appears. A Battery History window opens showing that tracker's charge level over the last 3 months.

This is the fastest way to tell a battery that is draining normally from one that fell off a cliff — a steady slope is ordinary discharge, while a sudden drop usually means the tracker was unplugged, lost coverage, or stopped reporting. The chart is only available for battery-powered trackers; hardwired and OBD trackers draw from the vehicle and do not report a battery percentage. For everything this report can show, see Every Hapn Report and What's In It.

When Battery Shows 0% But Tracker Still Works

• Extended battery case: The external battery may be depleted, but internal battery is still working
• Calibration needed: Some trackers require a full charge cycle to recalibrate battery reporting
• Contact support: Persistent battery reporting issues may require technical assistance

Need help with charging your tracker? Check our charging guides for your specific tracker model, or contact support at support@gethapn.com or submit a ticket if you have questions about battery performance. You can also call support at 877-212-7400 or chat with us — see How to Contact Hapn Support for hours.