BYD Battery-Box HV User Manual
5
When BYD Battery-Box HV operates in low temperatures, the charge and discharge current is
adjusted automatically. The battery will limit the current when the operating temperature gets
low. Please refer to the table below for current parameters related to operating temperature:
4 Technical Items
5 Product Overview
5.1 Brief Introduction
This product is a high-voltage DC battery system with an operating voltage range between
200~500V. It is utilized in household energy storage applications and works together with a high-
voltage inverter to realize the goal of energy storage for the home. A battery system consist of 5
to 9 individual battery modules connected in serial.
Charge Current at Various Temperatures Ranges
Temperature Range (℃)
Normal Current(A)
-10~0
0.2C
0~12
0.5C
12~50
0.8C
Note: It will take 2 minutes for the charge current to adjust
Discharge Current at Various Temperatures Ranges
Temperature Range (℃)
Normal Current(A)
-10~40
1C
40~50
0.5C
No.
Terms
Comment
1
Discharge
Battery output power for load
2
Charge
To put electricity into battery by charger
3
Full charged
Battery had been full charged, SOC is 100%.
4
Idle
Ready for charging and discharging
5
Shutdown mode
Power off
6
SOC
State of Charge
7
SW
Software
8
HW
Hardware
9
Battery voltage
The voltage between B+/B-
10
Pack voltage
The voltage between P+/P-
11
Cell voltage
Single cell voltage
12
Failure
Battery or BMS is broken, need to be replaced
13
Alarm
Indicate that the battery is in abnormal status
14
Protect
Battery stops charging or discharging and is recoverable.
15
Over discharged
Battery is lack of electricity, and needs to be recharged in time.
