NEC DAC Battery N8103-102 - Manual (Page 55)

Chapter 3 Operation and
Maintenance
1. Maintenance Service
Service representatives subordinate to or authorized by NEC provide services of the BBU
with use of genuine parts and high technical capabilities. You can get the services for your
own convenience.
For the services, contact the NEC sales department or representatives.
2. Preventive Maintenance
2-1. Preventive Maintenance of BBU
Check the states of the BBU (including voltage and temperature) regularly as preventive
maintenance. For the purpose, you can use WebPAM.
2-2. Life of Battery Pack
The battery pack used in the BBU can be used for about two years. Replace the battery
pack having been used for two years or longer with a new one as soon as possible
following "3. Battery Pack Replacement Procedure" in this chapter.
Notice
The battery pack is a supply/charged warranty device.