Modularized 12.8V 33Ah LiFePO4 Battery Pack with Communication RS485

1. Specification   Nominal Voltage: 12.8V Rated Capacity: 33.0Ah Cycle Life: higher than 60% of the initial capacity of the cells. Carry out 2000 cycles. Discharge Cut-Off Voltage: 10.0V Charging Cut-Off Voltage: 14.6V Cell and Assembly Method: IFR18650PC-1.1AH, 4S30P Housing Material: ABS+PC housing Maximum Charge Current: 120A Continuous Discharge Current: 120A Charge Temperature Range: 0~45°C Discharge Temperature Range: -20~60°C Weight: 6.10Kg Max. Dimension: 195*130*183mm   2. Supplementary Explanation Charge Protection: When the Battery Modules are charged to full, they will communicate with BMS, and the BMU has the capacity 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. 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 estimate 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 adjustable for normal self discharge of the battery system when the unit is not on charging. 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. 3. Period of Warranty   The period of warranty is 18 months from the date of shipment. O'CELL guarantees to give a replacement in case of the battery with defects proven due to manufacturing process instead of the customer abuse and misuse. Design Life: 7-10 years. 4. Terms of Payment T/T, L/C, Western Union, MoneyGram and Paypal is acceptable. 30%/70%. 5. Contact Us Representative: Fred Yang Tel: +86-755-81781377 Fax: +86-755-81781420 Website: www.ocelltech.com Add. of office in Shenzhen: Bld. B3, Donghao Industry Park, Sili Road, Guanlan Town, Longhua District, Shenzhen, 518110, Guangdong Province, China Add. of headquarter in Yichang: O'CELL Industry Park, Yayuan Road, Xiaoting District, Yichang, 443007, Hubei Province, China.