New Products, buy 12V90Ah LiFePO4 battery module for powertrain on China Suppliers Mobile

Product Details

Specifications

Can be connected in series or parallel to make the system more flexible;
IP56 design suit for severe condition;

Specification

Item	Comments
Battery module	90Ahr or 1152Whr (316PCS O’CELL IFR18650PC-1.1Ah cells in a 4S79P configuration.)
Approx. Dimension	260 mm x 158mm x 246 mm (LWH)
Approx. Weight	15.1kg
Nominal voltage	12.8V
Maximum voltage	14.6V
Minimum voltage	10.0V
Nominal load current	200A max. continuous current @ 23° C
Peak load current	400A max for 30 sec @ 23° C
Charge protection	When the Battery modules are charged to full, they will communicate with BMU, and the BMU has the capability to turn off the charger or open the main contactor. The battery module itself does not have any switch to disconnect the charger.
Balancing	The intra-module balancing circuit is used to compensate slight capacity imbalance among the four cell blocks within a battery module. The inter-module balancing circuit is used to compensate slight capacity imbalance between different battery modules in series connection.
State of Charge (SOC) Measurement	Individual cell block voltage and charge/discharge current will be used to monitor the state of charge (SOC) of the battery module. The estimated capacity used for the calculations will be adjusted to meet the capacity of the lowest capacity cell block when the battery system is fully cycled. The state of charge will be adjusted for normal self discharge of the battery system when the unit is not on charge.
RS-485 Communication Uplink	RS-485 Communications will be used to communicate with the Battery Management Unit (BMU) or connection to other battery Modules.
RS-485 Communication Downlink	RS-485 Communication connection from Downstream battery module.
RS-485 insulation voltage rating	1414V , 5000V rms for 1 minute
Status LED	A Dual LED on module to indicate working status. One is green and the other one is red. Blinking of the green LED indicates that the module is working properly. Blinking of the red LED indicates that the module has failure and needs service.

State-of-Charge Monitoring

State-of-charge (SOC) will be monitored via individual cell voltage measurements and the charge/discharge current. The SOC accuracy shall meet the accuracy listed below:

Accuracy of SOC to be

0 ~ 20% SOC: 5% accuracy (voltage-temperature compensated)

20% - 80% SOC: 10% accuracy (coulomb counting)

80% - 100% SOC: 5% accuracy

Circuit Self Discharge Rates

The circuit within the battery module will have a self discharge rate :

Condition	Leakage current
Shipping mode (Not connected with other battery modules and BMU)	Less than 1.0mA
Working mode (Connected with other battery modules and BMU), charging or driving	Less than 6.0mA
Sleep mode (Cell voltages are below discharge cut-off voltage, or the vehicle is not ignited.)	Less than 700 µA

Leakage current of PCBA within the battery module