• 18650/2S2P Li-ion battery Pack 7.4V/4.4Ah
  • Lighting battery pack - 18650/2S2P Li-ion battery Pack 7.4V/4.4Ah

18650/2S2P Li-ion battery Pack 7.4V/4.4Ah

Lighting battery pack

Model: AY-L02S02-021
Voltage: 7.4V
Capacity: 4.4Ah
Size (can be customized): L75*W68*H25mm
Cell Model:  

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  • Lighting battery pack

    AY-L02S02-021

    No Test item Criterion
    Nominal capacity 4.4Ah Samsung 18650-2200mAh
    Nominal voltage 3.7V 3.7V/1 Cell
    Charging voltage 8.4V±0.05V 4.2V/1 Cell
    Charging method CC/CV (Constant-current and-Voltage with Limited current
    Standard charging time 2000mA/3.3hour 1000mA/6.6hour Battery capacity÷charging current×1.5
    Charging current 1250mA(0.5C) 0~+40℃
    Maximum charging current 2500mA(1C) 0~+40℃
    Continuous discharge current 2.5A(1C) -20~+60℃
    Discharge cutoff voltage 2.5V 2.5V/1 Cell
    Short circuit protection Exterior short circuit Automatic recovery
    Intermal resistance ≤200mΩ AC lmpedance 1kHz
    Cycle life ≥500  
    Operating temperature Standard Charge 0~+40℃  
    Standard Discharge -20~+60℃  
      L75*W68*H25mm Length x wide x height
    Pre-wired   Red=Positive,Black=Negative
    Protection Circuit Module: PCM-Li02S3-129
    Maximal continuous charging current 2.5A  
    Maximal continuous Discharging current 2.5A  
    Over-charge detection voltage 4.25V±0.025V Single cell
    Over-charge release voltage 4.15V±0.05V Single cell
    Over-charge detection delay time 0.5S-1.5S Single cell
    Over-discharge detection voltage 2.50V±0.08V Single cell
    Over-discharge release Voltage 3.0±0.10V Single cell
    Over-discharge detection delaytime 50-150mS Single cell
    Over-current detection 9±2A can adjust
    Over-current delay time 5-15mS  

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