50A LITHIUM-ION BATTERY
Product Specifications
- Model Number: UPL-2450F
- Battery Type: LiFePO4
- Nominal Voltage: 27.2V
- Nominal Capacity: 50Ah
- Internal Impedance: < or equal (don’t have symbol) 60m(ohm symbol)
- Nominal Charge Voltage: 29.4+_ 0.05V
- Discharge Cut-off Voltage: 21.1+_ 0.05V
- Max. Charge Current: 50 amps
- Max. Continue Discharge Current: 50 amps
- Charge Method: CC (constant charge) | CV (constant voltage)
- Cycle Life: After 2,000 cycles, capacity > 80% nominal capacity
- Weight: 28.3 lbs. (15.5 kg.)
- Size (L*W*H): 12.9″*x 6.8″ x*8.5″ (327*172*216mm)
Operating Temperatures
- Operating Temperature Charge: 32-113F (0-45C)
- Operating Temperature Discharge: 14 – 140 F (-10 – 60 C)
- Storage Temperature: 41-95F (5-35 C)
- Relative Humidity: 65% +_ 20%
Product Features
Unit Details
Cycle Life
- Temperature: 77-86 F(25-30 C); Charge, 0.2C CC to 29.4V, and CV to 200mA cut off; Discharge, 0.2C DC discharge to 18.4V, 80% or more of 1st cycle capacity at 0.2C discharge of operation, cycles quantity must not less than 2,000 cycles.
- Remarks: Rest 10 min. after charge and discharge
- Standard Charge: Charging the cell initially with constant current at 0.2C and then with constant voltage at 29.2V (accuracy +_ 0.05V) until charging current declines to 0.02C at 77-86 F(25-30C)
- Standard Discharge: Discharging the cell with constant current at 0.2C till cut-off voltage at 21.2V. Temperature: 77-86 F (25-30C)
- Initial Internal Impedance: This means AC impedance of the pack measured at 1 KHz after half fully charged. Initial Internal Impedance < (or equal)60m(ohm)
- Initial Capacity: The capacity means the discharge capacity of the battery, which is measured with discharge current of 0.2C with 21.2V cut-off voltage after the standard charge.
- Initial Capacity: @95% normal capacity. Temperature: 77 -86 F(25-30 C).
- Charge Choice
- Standard charger: 29.4V/10A
- Charging mode: CC/CV
- CC: charging current <(or equal) 10A
- CV: constant voltage 29.4V
- Charging cut off condition <(or equal) 200mA