Tech Guides

How To Charge Whoop 4.0 (Guide)

Wearable fitness trackers have become indispensable tools for health-conscious individuals, and the Whoop 4.0 stands out as an advanced fitness tracker offering valuable insights into your daily activities, sleep patterns, and overall well-being.

When selecting the perfect fitness tracker to accompany your health and wellness journey, one of the most pivotal factors to consider is battery life.

In this comprehensive guide, we will delve into the battery life of Whoop 4.0, uncovering the answer to the intriguing question:

How long does it take to charge Whoop 4.0? Additionally, we’ll also provide information tailored to the question, “How long does the Whoop battery last?”

providing you with a comprehensive answer along with valuable tips and tricks to maximize its battery life. So, if you’re curious about the battery performance of the Whoop fitness tracker, continue reading!

How To Charge Whoop 4.0

Charging your Whoop Battery Pack is a straightforward process. Here are the steps to effectively charge the Whoop Battery Pack for your Whoop 4.0:

Check Battery Pack:

Start by ensuring that your WHOOP 4.0 battery pack is fully charged. You can refer to the “How do I charge my Battery Pack?” section for guidance on this.

Attach Battery Pack:

Once your battery pack is fully charged, slide it onto the top of your WHOOP device until it clicks into place.

Use the Provided Cable:

Ensure you have the micro USB cord that came with your Whoop 4.0. This cable is specifically designed for charging the battery pack.

Locate the Charging Port:

Identify the charging port on the battery pack. It’s typically located on the bottom or back of the pack, depending on the specific model.

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Connect the Cable:

Insert the micro USB end of the cable into the charging port on the battery pack.

Connect to Power:

Plug the other end of the cable into a power source. This can be a USB wall adapter, a computer’s USB port, or any other compatible power source.

Monitor the LED Indicators:

The battery pack usually has LED indicators that show the charging status. When the pack is charging, you may see a red LED indicator. Once it’s fully charged, the LED may turn green or indicate in some way that it’s ready.

Allow for Full Charge:

Let the battery pack charge until it’s fully powered up. This ensures you have enough power to use it with your Whoop 4.0.

Detach and Use:

Once the battery pack is fully charged, you can disconnect it from the cable. Then, you can attach it to your Whoop 4.0 as needed to extend your device’s battery life.

How To Charge Whoop 4.0 Without a Battery Pack?

The question, my friend, should be; can you charge the Whoop devices without battery pack? Unfortunately, charging a Whoop device without the dedicated battery pack is not possible.

The battery pack is an essential component of the Whoop system, and there are no alternative methods or options for charging a Whoop device without it.

If you have lost your battery pack or it’s not functioning correctly, it’s important to obtain a replacement battery pack or contact Whoop customer support for assistance. Attempting to charge a Whoop device without the proper battery pack can lead to damage and is not recommended.

If you’re looking to purchase extra battery packs, you can easily do so by visiting the WHOOP Shop online. There, you’ll find the option to order additional battery packs to keep your WHOOP device powered up and ready for your fitness journey.

How To Check The Charge Level Of Your Battery Pack

To determine the charge level of your WHOOP, double-tap the top of the battery pack. You can gauge the charge based on the LED status scale:

  • 3 solid White LEDs = Full Charge
  • 2 White solid + 1 White blinking LED = 80-99%
  • 2 solid White LEDs = 60-79%
  • 1 solid White LED + 1 White blinking = 40-59%
  • 1 solid White LED = 20-39%
  • 1 White LED blinking = 10-19%
  • 1 solid Red LED = 5-9%
  • 1 blinking Red LED = 5%

Alternatively, you can check the charge level using the WHOOP app. Look for the device indicator in the top corner of the app to view the current charge level.

How To Charge The Whoop Battery Pack?

The Whoop Battery Pack is a crucial component of your Whoop device, and ensuring it stays charged is essential for tracking your daily activities. Here’s a step-by-step guide on how to charge it:

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Step One:

Before you begin charging your Whoop Battery Pack, it’s essential to check its current status by double-tapping the top of the strap to observe the LED indicators.

Step Two:

Once you’ve determined the battery status, it’s time to charge the battery pack. To do this, simply plug your battery pack into an available micro USB charger and allow it to charge for approximately 1-3 hours. You’ll know the battery pack is fully charged when the LED indicator changes from Red to Green.

Step Three:

After the battery pack has reached a full charge, you can complete the process by reattaching it to your Whoop strap. Ensure that when you slide the fully charged battery pack back onto the strap, the Whoop logos on both the battery and the strap are aligned correctly.

How Long Does Whoop Battery Last?

The battery life of a Whoop device can vary depending on the specific model and usage patterns. Here’s a general idea of how long the battery typically lasts for different Whoop models:

Whoop 3.0:

The Whoop 3.0, the predecessor to the 4.0, also offers a good battery life, with a similar range of approximately 4-5 days on a full charge.

Whoop 4.0:

The Whoop 4.0 is known for its impressive battery life, often lasting approximately 4-5 days on a full charge. This extended battery life allows users to wear it continuously without needing frequent recharging.

Whoop 4.0 Pro:

Whoop 4.0 Pro is tailored for the most demanding users. With its exceptional power management, this model boasts an impressive battery life of 7 to 10 days on a single charge. It stands as the ultimate choice for individuals who prioritize extended battery longevity.

How Long Does It Take to Fully Charge a Whoop 4.0 Battery?

The time it takes to fully charge a Whoop 4.0 battery can vary depending on the battery’s current state. Here’s an estimate of how long it takes Whoop 4.0 to fully charge:

Charging the WHOOP 4.0 battery pack typically takes around 1-3 hours to reach a full charge. This is the recommended charging duration for optimal performance.

Keep in mind that the actual charging time may vary slightly depending on factors such as the power source, the condition of the battery pack, and the specific charging cable and adapter you are using.

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Factors Affecting Whoop Battery Lifespan

Several factors can affect the battery life of a WHOOP device. Here are the key factors:

Usage Intensity:

The more actively you use your WHOOP device, such as during intense workouts or constant activity tracking, the faster the battery drains. Frequent use of features like heart rate monitoring and GPS tracking can have a significant impact on battery life.

GPS Tracking:

If your WHOOP device has GPS capabilities and you use it for outdoor activities like running or cycling, using GPS tracking can substantially reduce battery life. GPS is a power-intensive feature.

Display Brightness:

If your WHOOP device has a display (some models do not), higher brightness settings can drain the battery more quickly. Reducing screen brightness can extend battery life.


If your WHOOP device is set to receive notifications from your smartphone, these notifications can impact battery life. Frequent notifications and vibrations use additional power.

Background Processes:

Background processes and apps running on your WHOOP device can consume power even when you’re not actively using the device. Closing unnecessary apps or processes can help conserve battery life.

Battery Age:

Over time, the battery’s capacity may degrade naturally. Older batteries may not hold a charge as effectively, leading to reduced battery life.

Battery Pack Condition:

The condition of the battery pack itself can impact battery life. If the battery pack is damaged or aged, it may not hold a charge as effectively.

Tips To Prolong Whoop’s Battery Lifespan

Here are some valuable tips to help you maximize the battery life of your Whoop device:

Turn Off Unused Features:

To conserve battery power, disable features you’re not using, such as GPS or heart rate monitoring during specific activities. This prevents unnecessary power consumption.

Adjust Screen Brightness:

The screen brightness can be a significant battery drain. Find a balance by reducing screen brightness to a level that’s still readable but not overly bright, saving power in the process.

Close Unused Apps:

Background apps can drain battery life. Close or force-stop any unnecessary apps running in the background to prevent them from consuming power.

Enable Battery-Saving Mode:

Many Whoop devices offer battery-saving modes designed to conserve power. Activate this mode when you’re not actively tracking your fitness to maximize battery life.

Avoid Overcharging:

Overcharging your Whoop device can diminish battery life over time. Disconnect it once fully charged to prevent overcharging and preserve the battery’s health.

WHOOP Device Not Charging ~ How To Fix

If you encounter the frustrating situation of your Whoop strap not charging, here are some troubleshooting tips to get it back on track:

Update Firmware:

Ensure your battery pack and strap are running the latest software and firmware. If you’ve recently upgraded from a previous model, use the Battery Pack 4.0 updater tool to address potential software glitches.

Verify Charging Plug Orientation:

Sometimes, it’s as simple as checking the orientation of the charging plug. Ensure it’s properly inserted.

Align Sensors:

When attaching the battery pack to the strap, ensure that the logos on both align correctly. You should feel a satisfying click when they connect. Wait for five minutes, and if the LEDs don’t illuminate, detach and reattach the battery pack with a bit more force.

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Replacement Battery Pack:

If all else fails and you suspect an issue with the battery pack, consider contacting Whoop Support for assistance or purchasing a replacement. Make sure to get the right battery pack for your model, as they are not interchangeable between the 4.0 (USB-C) and 3.0/2.0 (micro USB).

Contact Whoop Support:

If none of the above solutions work, it’s time to reach out to Whoop’s customer support team. You may need a new sensor or battery.

You can contact them through the Whoop app, via email at support@whoop.com, or by calling (844) 490-1593. They are also available on social media platforms like Twitter and Facebook.

In Conclusion

Charging your Whoop 4.0 is a straightforward process, but knowing the nuances can make a significant difference in optimizing its performance.

From checking your battery pack’s orientation to updating firmware and being mindful of environmental temperatures, these steps ensure that your Whoop stays powered up and ready to track your fitness journey.

Should you encounter any issues, remember that Whoop’s support team is readily available to assist. By following these guidelines, you can ensure that your Whoop 4.0 remains a reliable companion on your path to better health and fitness.

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