07
08
It can be used to view battery information through WIFI,
please see Annex 4 for details
.
WIFI Module
WIFI
5
The FEN4850 battery can be turned on and off by using
the key switch, and the key can be pulled out and
inserted in the on and off state
.
Connect earth by flexible cable above GREEN Sheathed,
UL94-V0, gauge of the grounding wire should be equal to
or greater than the gauge of the battery return wire.
Ground screw
Pressure relief
valve
Key Switch
Safety
valve
Power
Switch
GND
6
8
7
Working Principle
The
FEN4850
battery system mainly includes Lithium battery pack, battery protection, cell
balancing unit, monitoring module and charge-discharge management module for optional. Its
schematic diagram shown in Figure 1-4
Fig. 1-4 Schematic Diagram
LFP cells
Cell protection
Cell balancing
Monitoring
Chemical power, energy storage and power supply components.
Protect LFP cells against overcharge, over discharge, over current, over
temperature, short circuit
Equalization LFP cells for cells unbalanced
Support centralized monitoring system (optional according to customer
requirements)
FEN4850
battery working principle:
DC power input rectifier after filter, DC divided two circuits, one circuit directly supply the load, another
circuit charge lithium battery. When grid power on, the system supplies the loads and charging inside
lithium batteries; When grid power failure, lithium inside system supply DC power to the load, to
ensure uninterrupted power supply as power system.
Battery Management System (BMS)
Smart BMS technology is adopted for battery modules of
FEN4850 battery
to assure smart
automatic management for batteries. Features of BMS are shown as below:
In case of safety problems, the pressure relief valve
can release the pressure inside the battery in time to
ensure the safety of the battery.
