Keysight 53210A Mode D'emploi page 10

Lithium Battery Recycling
The 53210A counter contains a 3V "coin cell" lithium battery. Keysight
recommends that this battery be replaced every year at the instrument's 1-year
calibration interval. Replacement procedures are provided in the 53210A/53220A/
53230A Service Guide.
Option 300 provides battery operation of the 53210A using a 12 lithium battery.
Performance of this battery will degrade over time as a function of the number of
battery charge/discharge cycles.
Refer to local, state, or Federal regulations when disposing of, or recycling either
battery.
Product Regulatory and Compliance
This 53210A counter complies with safety and EMC requirements.
Refer to Declaration of Conformity at
the latest revision.
10
http://www.keysight.com/go/conformity
Keysight 53210A User's Guide
for