Skip to main content
< All Topics

Battery Information

Published
Updated
ByNiko

The eSense Muscle uses an internal Lithium Polymer battery with 3.7V operating voltage. The eSense Muscle is charged with five volts via the included USB-C cable and USB charger.

You can read the current state of charge in the eSense (web) app. To save the battery, the device switches off after two minutes of inactivity; i.e., without Bluetooth® connection or recording to SD card.

Changing the battery by the user is not provided. The manufacturer can only replace the battery.

  • Never open the eSense Muscle. This is not provided for.
  • Use the included charger to charge the eSense Muscle as other chargers may damage it.
  • If you do not use the eSense Muscle for a more extended period, always store it in the enclosed case. Charge it fully first when you start it up again.

Some links on this website are affiliate links. If you make a purchase through these links, we may earn a small commission at no additional cost to you. As an Amazon Associate, we earn from qualifying purchases.