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Fine Disassembly

Overview of lithium ion starter battery-24T4
The product is a new automatic lithium ion starter battery developed for satisfying application requirements of new energy buses. The product adopts preferred secondary decommissioned lithium ion titanate cells subject to strict inspection, uses the battery management system BMS, and features high safety, high magnification, wide temperature resistance, and long service life compared with other similar products.

Application: Application: Applicable to multiple models of new energy buses, such as various buses, motor buses and commuting buses
  • Structure of Lithium Ion Starter Battery-24T4
  • Block Diagram of Lithium Ion Starter Battery-24T4
Parameters I of Lithium Ion Starter Battery-24T4
Model Value
Model 24T4
Nominal voltage 23V
Practical voltage range 16.5-28.5V
Rated capacity 40Ah
Rated capacity 100A
Rated energy 0.92kWh
Cell source Decommissioned battery
Chemical system of cell Lithium titanate
Nominal voltage of cell 2.3V
Rated capacity of cell 40Ah
Series and shunt forms of cell 10s1p
Quality 23.5±0.2kg
Discharge interface M8
Charging time 2h(internal charge control)
Auxiliary power bus voltage 27.8V-28.8V
Charging cut-off condition Total voltage ≥28.5V/monomer Voltage≥2.9V
Charge conversion current 10A
Total voltage interval 16.5V-28.8V
Control charge current 20A

Parameters II of Lithium Ion Starter Battery-24T4
Item Value
Maximum continuous charging current 20A
Charging overcurrent protection current value 300A
Charging overcurrent protection delay 5000mS
Maximum continuous discharge current 100A
Discharge overcurrent protection current value 300A
Charging overcurrent protection delay 5000mS
Charging overcurrent protection delay 28.5V
Total voltage overcurrent protection restoration value 26V
Charging overcurrent protection value 25A
Charging over-temperature protection value 60℃
Charging over-temperature protection release value 45℃
Charging under-temperature protection value -10℃
Charging under-temperature protection release value -8℃
Discharge over-temperature protection value 60℃
Discharge over-temperature protection release value 55℃
Discharge under-temperature protection value -30℃
Discharge under-temperature protection value -28℃
Discharge under-temperature protection value 30mV
Allowable balanced minimum monomer voltage 2.2V