Battery Charging - Keysight Technologies TrueIR U5855A Service Manual

2 Service and Maintenance

Battery Charging

Battery Charging
Use only Keysight's recommended and approved AC/DC power adapter to
charge the battery.
Use the following procedure to charge the battery.
1 Connect one end of the power cord to the DC power inlet of the
2 Allow at least 4 hours for the battery to fully charge.
3 The LED status indicator will indicate the charging status.
12
U5855A, and connect the other end of the power cord to the mains
outlet, as illustrated below.
Indicates charging status
U5855A Service Guide