Battery Replacing

When the batteries have run out of power, please remove the back cover to replace the new batteries.

Note:
  • EM300 provides 4000mAh version and 8000mAh version. Please do not install 2 batteries on the 4000mAh version, and vice versa. Otherwise, it will cause inaccurate power calculations.
  • To reduce the interference of NFC transmission, it is suggested that the battery be installed in the upper location (see figure).
  • The device can only be powered by the ER18505 Li-SoCl2 battery. The alkaline battery is not supported.
  • The battery should be removed or replaced from the device if it is not used for an extended period.
  • Ensure all replacing batteries are newest; otherwise, it may shorten battery life or cause inaccurate power calculations.