B
attery
-Box LV User Manual
Page 7
External drawing Internal drawing
5.2 B-Box configuration table
No.
Component
Name
Description
1
Cabinet
B-Box Cabinet
The Cabinet, inside which B-Plus 2.5 can be installed, provides DC power
and each cabinet can hold up to 4 pcs of B-Plus.
2
Battery
B-Plus2.5
Battery module with 51.2V50Ah, BYD’s P/N is: U3A1-50P-A.
3
BMU
BMU
Battery management unit, communicates with external equipment.
5.3 General introduction of BMU
BMU installed inside cabinet, is battery management unit. The function is to
manage the battery’s
charge and discharge, and collect information from battery and report to inverter.
Functions of BMU:
CAN /RS485 communicate with inverter
RS485 communicate with battery/BMS
Dry contact terminal
Other Communication interface for maintenance
Charge and discharge management
5.4 General introduction of B-Plus 2.5
