Huawei ETS2000 Series Maintenance Manual page 46

HUAWEI ETS2000 series Wireless FWT Maintenance Menu
8, Phenomenon: The battery loses its electricity after short-time usage.
Solution:
1) Judge whether or not the battery has been used many times. If yes, the
battery capacity has been decreased evidently. Then the battery should be
replaced.
2) Judge whether or not the output voltage of the external power adapter that
charges for the battery is normal. If yes, the adapter should be replac
0Chapter4 Maintenance Procedures and S
olutions to Common Faults
46