Battery not charging all the way

Device & Charging
1

I have 3 batteries for my Whoop 4.0 but one of them charges the device very slowly and most of the time, will only get to 40-60% charge. It won’t charge all the way.

Anyone else experience this issue or is it likely the battery has just met it’s lifespan?

2

Hello! There are several ways you can troubleshoot battery issues. I would try the following…

  • Fully charge the WHOOP 4.0 battery pack using the provided USB-C cable until the indicator LED shows green (70-100% charged).
  • Slide the charged battery pack securely onto your WHOOP 4.0 sensor and check that the LED indicator confirms charging.
  • Charging the WHOOP 4.0 sensor fully takes about 2.5 hours.
  • Double-tap the battery pack to check its charge level: green means 50-100%, yellow means 20-49%, and red means less than 20%.
  • Make sure the charging contacts on both the sensor and battery pack are clean and free from dust or sweat.
  • Ensure your WHOOP 4.0 sensor is running the latest firmware by checking the WHOOP app.
  • If the battery pack is not charging properly, try updating its firmware.
3

Thanks Liv - do you have the link to the Battery Pack updater? The link on the main support site is missing!