ev battery system

Battery Display

• This can be redesigned according to customer’s vehicle structure.

• Picture for reference.

ev battery Display

Features

• NCM battery technology, 345V 210AH, 108S2P
• 69KW continue discharge, 200KW for 30 seconds
• Smart BMS integrated in the battery pack with CAN communication
• Short circuit/ Over current/ Over voltage/ Over temperature protection/SOC/SOH
• Strong steel case
• Liquid cooling, heating in winter is optional
• Approx 1835*880*300mm, 603k

Datasheet for Battery Pack

NoItemsTechnical requirementNote
1Battery typeLifepod490S2P
2Capacity(kWh)≥72.45
3Weight(kg)≤600Kg
4Rated voltage(DC V)34590S
5Voltage range(DC V)270-394.2
6Continuous discharge current(A)200@EOL,@25℃
7Peak discharge current(A)600A/30s;
8Continuous charging current(A)
100@EOL,@25℃
9Charging requirements
CC-CV
10Charge discharge energy efficiency
≥98%
@EOL,@0.5C charge and discharge
11Warranty2 years
@0.5C charge and 1Cdischarge
12Cooling / Heating mode
Liquid cooling/PTC heating
13IP grade
IP67
14Working environment temperature (℃)
-20~45
@Heating and cooling
15System self discharge rate
≤5%
@25℃,30days
16Insulation resistance
≥50MΩ

Datasheet for BMS

NoItemsSpecificationNote
1Working voltage and range
6V~36V
2Working temperature
-40℃~85℃
3Working humidity
5%~95%
4Storage temperature
-40℃~105℃
5Power consumption during operation
≤1.5W
6BMS Standby current
≤1mA
Lead acid power
supply, have wake-up signal
7BMS Dormancy current
≤100uA
Lead acid power
supply, have wake-up signal
8SOC Estimation error
≤5%
9SOH Estimation error
≤5%
10Cell temperature acquisition range
-40℃~105℃
11Number of temperature collection points
Proportion of collection points
comparing to battery pack in series 1:3
12Accuracy of single temperature acquisition
≤±1℃
13Total battery voltage measurement range
0~800V
14Total voltage measurement accuracy
≤±0.2%FSR or ≤0.5V
15Single voltage acquisition range
0~5V
16Measurement range of cell voltage (V)
0~5V
17Measurement accuracy of cell voltage
≤±2mV
18Maximum cell voltage acquisition time
<200μs
19All cell voltage measurement time, including
the time transferred to the main controller
<100ms
20Current measurement mode
Single / Dual Range Hall and
current diverter
21Current measurement range (A)
±30A(Small range),±500A
22Current measurement accuracy
≤±0.5% FSR
23Insulation measurement accuracy
≤10kOHM or ≤10%
24Balance function
yes
25Balanced mode
Passive,100mA
26BMS Protection level
IP40
27RTC Power down hold time
≥12months
28Fault and operation data memory type
SLC NAND FLASH
29CAN channel number
≥4channels/500kBPS
30Main positive relay_ control mode
High and low side drive
31Main positive relay_ State detection
yes
32Precharge relay_ control mode
High and low side drive
33Charging relay_ control mode
High and low side drive
34Charging relay_ State detection
yes
35GPRS Wireless data transmission module
BCU Internal integration
36Wake up function
Yes, real time monitoring of key data of the cell
It can wake up and
monitor the battery status in the stationary parking time
37Safety signs
Add safety label in voltage
processing part of circuit board
38Flame retardant requirements
UL94 V0
39Flame retardant requirements
UL94 V0
40Definition of relay control
Main positive relay
Precharge relay
Fast charging relay
Slow charging relay
Air conditioning relay
Heating relay
Negative relay
HSS1
HSS2
HSS3
HSS4
HSS5
/
HSS7