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LiFePO4 battery pack 72V/50Ah
This kind of battery pack could be used on electric vehicles, ultra-light airplanes and other vehicles and devices. It could be used to discharge at 4C-200A continuous and 6C-300A max. the battery case has special function of water-proof, shock-proof and heat preservation.
Solution A
1. solution:
Use our companys soft package LiFePO4 cell 3.2V/50Ah (13/240/240-Fe); be connected in 24S to build the pack 72V/50Ah. The total output is 76.8V/50Ah, 3.84KWh.
Overall dimension of the single cell: T: 13 *W: 240 * H: 240mm
Weight of single cell: ≤1.6KG
Solution B
1. solution:
Use our companys high-rate steel case LiFePO4 cell 3.2V/10Ah (28/82/118S-Fe); be connected in 5P24S to build the pack 72V/50Ah. The total output is 76.8V/50Ah, 3.84KWh.
Overall dimension of the single cell: T: 28.5*W: 82.5 * H: 118mm
Weight of single cell: ≤0.5KG
2. concerned parameter of the battery pack:
1). working voltage: 76.8V
2). Nominal capacity: 50Ah
3). Output power: 3.84KWH
4). maximum output voltage: 82V
5). Minimum output voltage: 62V
6). Charging restrict voltage: 86V
7). Continuous discharging current: 200A
8). Instantaneous discharging current: 300A, 10S
9). Maximum charging current: 100A
10). Instantaneous charging current: 150A, 10S
11). Total weight of the battery pack (not including the case): 60KG
3. dimension(for reference):
The dimension of the battery case can be designed according to the customers real space for putting the battery.
4. BMS:
Be built up by one general control module and two sub-control modules.
General control module
Sub-control module
(Built in the battery case, not including the aluminium alloy casing)
1). Voltage detect of single cell
2). Charging balance function
3). Over-charge voltage protection: single cell 2.3V
4). temperature sensor: 4pcs
5). SOC Electric quantity calculation
6). Can Communication function
7). Over-voltage, under-voltage and over-temperature protection contact output
8). Insulation impedance detect function
9). Communication function with charging machine
10). LCD display terminal
5. charging:
1). CC/CV: constant current/ constant voltage
2). Charging restrict voltage: 88.8V
3). Charging voltage: 20A
4). BMS control charger mode
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