How to Charge Eufy Smarttrack Card

Charging your Eufy SmartTrack Card is simple and essential for keeping your belongings secure. This guide walks you through the process, offers pro tips, and helps troubleshoot common issues.

Key Takeaways

• Use the included USB-C cable: The Eufy SmartTrack Card charges via a USB-C port and comes with a compatible cable—always use this for best results.
• Charge when the LED blinks red: A blinking red light means the battery is low. Charge immediately to avoid losing tracking functionality.
• Full charge takes about 2 hours: Plug in the card for approximately two hours to reach 100% battery capacity.
• Check battery in the EufySecurity app: Monitor your card’s battery level directly from your smartphone using the app’s device status section.
• Avoid overcharging: Unplug once fully charged to preserve long-term battery health.
• Store in a cool, dry place: Keep the card away from extreme heat or moisture when not in use.
• Replace every 2–3 years: Like all lithium batteries, the internal battery will degrade over time and may need replacement.

How to Charge Eufy SmartTrack Card: A Complete Step-by-Step Guide

Have you ever misplaced your wallet, keys, or backpack and wished you had a tiny tracker to find it instantly? That’s where the Eufy SmartTrack Card comes in—a sleek, credit-card-sized Bluetooth tracker designed to help you locate your most important items with ease. But like any smart device, it needs power to work. And that means knowing how to charge your Eufy SmartTrack Card properly.

In this comprehensive guide, we’ll walk you through everything you need to know about charging your Eufy SmartTrack Card—from recognizing when it’s time to plug in, to understanding the charging process, troubleshooting common issues, and maintaining battery health for long-term use. Whether you’re a first-time user or just need a refresher, this guide has you covered.

What Is the Eufy SmartTrack Card?

Before diving into charging, let’s quickly cover what the Eufy SmartTrack Card actually is. Made by Anker’s smart home brand Eufy, this device is a slim, durable tracker that fits seamlessly into wallets, cardholders, or even taped behind a phone case. It uses Bluetooth to connect to your smartphone via the EufySecurity app, allowing you to ring the card, view its last known location on a map, or trigger your phone to ring if you’ve misplaced it.

Unlike GPS trackers that require subscriptions or constant cellular data, the SmartTrack Card uses Bluetooth Low Energy (BLE) technology, which is energy-efficient and doesn’t drain your phone’s battery. However, it does have an internal rechargeable lithium battery that needs periodic charging—typically every few months, depending on usage.

Why Charging Matters

You might think, “It’s just a small tracker—how much power can it really use?” The truth is, even small devices need consistent power to function. If your Eufy SmartTrack Card runs out of battery, you lose the ability to:

• Ring the card to locate it
• See its last known location in the app
• Use the “Find My” network (if enabled)
• Receive separation alerts when you move too far from the card

That’s why staying on top of charging is crucial. A dead card is just a piece of plastic—no smarter than your average wallet. But with a full charge, it becomes your personal anti-loss assistant.

Step 1: Check the Battery Level

The first step in knowing how to charge your Eufy SmartTrack Card is recognizing when it needs power. The card doesn’t have a screen, so you’ll rely on two main indicators: the LED light and the EufySecurity app.

Using the LED Light

The SmartTrack Card has a small LED indicator on one edge. Here’s what the colors mean:

• Solid green: Battery is fully charged or above 50%.
• Blinking green: Charging in progress.
• Blinking red: Battery is low (below 20%)—time to charge!
• No light: Card may be fully drained or malfunctioning.

If you see a blinking red light, don’t wait—plug it in as soon as possible. Waiting too long can lead to a complete shutdown, making it harder to revive the card.

Using the EufySecurity App

The app gives you the most accurate battery reading. Here’s how to check:

1. Open the EufySecurity app on your smartphone.
2. Tap on the Devices tab at the bottom.
3. Find your SmartTrack Card in the list and tap it.
4. Look for the Battery Level indicator—usually shown as a percentage or a battery icon.

If the battery is below 30%, consider charging soon. Below 20%? Charge immediately. The app may also send a push notification when the battery is low, so make sure notifications are enabled.

Step 2: Gather Your Charging Equipment

Charging the Eufy SmartTrack Card is straightforward, but you’ll need the right tools. Fortunately, everything you need comes in the box—or is likely already in your home.

What You’ll Need

• Eufy SmartTrack Card
• USB-C charging cable (included in the box)
• USB power source (wall adapter, computer USB port, or power bank)

The card uses a USB-C port, which is the modern standard found on most phones, tablets, and laptops. If you’ve lost the original cable, any standard USB-C cable should work—just make sure it’s not damaged and supports data transfer (not just charging).

Recommended Power Sources

For best results, use a reliable power source:

• Wall adapter: A 5V/1A or 5V/2A USB adapter (like the one for your phone) works perfectly.
• Computer USB port: Slower but safe—ideal if you’re at your desk.
• Power bank: Great for travel or on-the-go charging.

Avoid using cheap, uncertified chargers, as they can deliver unstable power and damage the battery over time.

Step 3: Plug In and Charge

Now that you’ve checked the battery and gathered your gear, it’s time to charge. Follow these simple steps:

Step 3.1: Locate the Charging Port

On the edge of the SmartTrack Card, you’ll find a small USB-C port. It’s recessed slightly to protect it from damage. Gently insert the USB-C cable into the port. It only fits one way, so don’t force it—rotate the cable if needed.

Step 3.2: Connect to Power

Plug the other end of the cable into your chosen power source. Once connected, the LED light should turn on:

• If the battery was very low, it may take a minute or two for the light to appear.
• A blinking green light means charging has started.
• If the light doesn’t come on, check the cable connection and power source.

Step 3.3: Monitor the Charging Process

The card typically takes about 2 hours to charge from 0% to 100%. During this time:

• The LED will blink green continuously.
• You can check the app periodically to see the battery percentage increase.
• Once fully charged, the LED will turn solid green and stop blinking.

Some users report that the light turns off after full charge—this is normal. The card may enter a low-power state to conserve energy.

Step 3.4: Unplug When Done

Once the card is fully charged, unplug it from the power source. There’s no need to leave it plugged in overnight. In fact, avoid overcharging—while modern lithium batteries have safeguards, prolonged charging can reduce long-term battery life.

Pro tip: Set a timer for 2 hours when you start charging. This helps you remember to unplug and prevents unnecessary wear.

Step 4: Verify the Charge

After charging, it’s a good idea to confirm that the card is working properly. Here’s how:

Check the LED

Press the button on the card (if it has one) or gently tap it. The LED should light up green, indicating a full charge.

Test in the App

Open the EufySecurity app and check the battery level. It should show 90–100%. You can also try ringing the card to ensure it responds.

Test the Find Feature

Move a short distance away (about 10–20 feet) and use the app to ring the card. If it beeps, everything is working correctly.

Tips for Optimal Charging

Charging your Eufy SmartTrack Card isn’t complicated, but a few best practices can help extend battery life and improve performance.

Charge Regularly, Not Just When Empty

Instead of waiting for the battery to die, charge your card every 2–3 months—even if it still has power. This helps maintain battery health and ensures it’s always ready when you need it.

Use Original or High-Quality Cables

While third-party USB-C cables may work, the included cable is designed specifically for the SmartTrack Card. Cheap cables can cause slow charging or connection issues.

Avoid Extreme Temperatures

Don’t charge the card in very hot or cold environments. Ideal charging temperature is between 50°F and 86°F (10°C to 30°C). Charging in a hot car or freezing garage can damage the battery.

Store Properly When Not in Use

If you’re not using the card for an extended period (e.g., during travel), store it in a cool, dry place with a 50–70% charge. This helps preserve battery longevity.

Keep the Port Clean

Dust and debris can accumulate in the USB-C port over time. Use a dry toothbrush or compressed air to gently clean it every few months.

Troubleshooting Common Charging Issues

Even with proper care, you might run into charging problems. Here’s how to fix the most common issues.

Issue 1: LED Light Doesn’t Turn On

Possible Causes:

• Battery is completely dead
• Cable or power source is faulty
• Port is blocked or damaged

Solutions:

• Try a different USB-C cable and power source.
• Wait 5–10 minutes—sometimes a deeply drained battery needs a “jump start.”
• Clean the charging port gently.
• If nothing works, contact Eufy support—the battery may need replacement.

Issue 2: Charging Is Very Slow

Possible Causes:

• Using a low-power USB port (e.g., older computer)
• Cable is damaged or low-quality
• Card is in a hot or cold environment

Solutions:

• Switch to a wall adapter with at least 1A output.
• Use the original cable or a certified replacement.
• Move to a room-temperature area.

Issue 3: Card Won’t Hold a Charge

Possible Causes:

• Battery is aging (common after 2–3 years)
• Card has been exposed to moisture or physical damage
• Software glitch

Solutions:

• Update the EufySecurity app and check for firmware updates.
• Reset the card (if supported—check the app for options).
• If the battery degrades significantly, consider contacting Eufy for a replacement.

Issue 4: App Shows “Device Offline” After Charging

Possible Causes:

• Bluetooth connection lost
• App needs refreshing
• Card is out of range

Solutions:

• Open the app and pull down to refresh the device list.
• Bring the card close to your phone and wait a few seconds.
• Restart your phone’s Bluetooth.

How Long Does the Battery Last?

The Eufy SmartTrack Card is designed for long battery life. Under normal use—ringing the card a few times a week and receiving occasional alerts—the battery can last up to 6 months on a single charge.

However, usage patterns affect this:

• Frequent ringing or alerts: Shorter battery life (3–4 months)
• Rare use: Can last 6–8 months
• Using the Find My network: Slightly increased drain due to background communication

Keep in mind that battery life decreases over time. After 2–3 years, you may notice the card doesn’t hold a charge as well. This is normal for lithium batteries.

When to Replace Your Eufy SmartTrack Card

Like all rechargeable devices, the SmartTrack Card has a limited lifespan. Here are signs it’s time for a replacement:

• Battery drains in less than a month
• Card won’t charge at all
• Physical damage (cracks, water exposure)
• Firmware updates no longer supported

Eufy offers a 18-month warranty, so if your card fails within that time, you may be eligible for a free replacement. After that, you can purchase a new one from Eufy’s website or authorized retailers.

Final Thoughts: Keep Your Card Charged, Keep Your Items Safe

Learning how to charge your Eufy SmartTrack Card is a small but important part of owning this handy device. A fully charged card means peace of mind—knowing you can always find your wallet, keys, or bag with a tap on your phone.

By following this guide, you’ll ensure your card stays powered, performs reliably, and lasts for years. Remember to check the battery regularly, use quality charging gear, and avoid common pitfalls like overcharging or extreme temperatures.

With a little care, your Eufy SmartTrack Card will be one of the most reliable tools in your daily life—helping you stay organized, reduce stress, and never lose your essentials again.