12V 33Ah Lithium LiFePO4 Battery Pack With Built-in Smart Protection Circuit Board
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.
- 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:
- 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.
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