Keysight N9923-90001 User’s Guide245Working with the Lithium-Ion BatteryLithium-Ion Battery Disposal— Store batteries in a cool, dry location, away from metal objects andcorrosive gases.Storage temperature limits (20% to 50% relative charge is recommended):— Battery charging limits:Charge temperature: 0°C to 45°C (<10°C slows charge on some batteries)Discharge temperature: –10°C to 60°C— Operate the FieldFox on battery power between the ambient temperaturesof –10 and +50°C (–14 to +122°F). Using the battery at lower or highertemperatures can damage it and reduce operating life. Cold temperaturesaffect battery chemistry, reducing charge capacity, especially below 0°C(32°F).Lithium-Ion Battery DisposalWhen you notice a large decrease in charge capacity after proper recharging,it’s probably time to replace the battery.Lithium-Ion batteries need to be disposed of properly. Contact your localwaste management facility for information regarding environmentally soundcollection, recycling, and disposal of the batteries. Regulations vary fordifferent countries. Dispose of the battery in accordance with local regulations.Keysight Technologies, through Rechargeable Battery Recycling Corporation(RBRC), offers free and convenient battery recycling options in the U.S. andCanada. Contact RBRC at 877-2-RECYCLE (877.273.2925) or online at:http://www.call2recycle.org/ for the nearest recycling location.Transportation: –20°C to 50°CWithin 1 month: –20°C to 45°CWithin 6 months: –20°C to 40°CWithin 1 year: –20°C to 35°C