Keysight A Series User Manual page 811

Safety Considerations
For the Battery
Keysight N9927-90020 User's Guide
Do not discharge the battery using any device except the FieldFox
or the external battery charger (N9910X–872). When the battery is
used in a device other than those specified, it may damage the
battery or reduce its life expectancy. If the device causes an
abnormal current to flow, it may cause the battery to become hot,
explode, or ignite and cause serious injury.
For a Korean battery safety consideration translation, refer to
Appendix D:, "Korean Battery Safety Translation."
For a Russian battery safety consideration translation, refer to
Appendix E:, "Russian Battery Safety Translation."
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