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                                                           Battery Pack Characteristics
Item                                                              Li-NiCoMn Battery
Capacity                                                      20Ah     15Ah      12Ah
Nominal Voltage                                        24V       36V         48V
Max.Charge Voltage                                  29.4V    42.0V     54.6V
Discharge Cut-off Voltage                        19.2V    27.5V     35.7V
Max.Charge Current                                   5A         5A           4A
Max.Continuous discharge current         40A      30A         24A
Max.Discharge current( ≤30S)                60A      45A         36A
Battery box material                                           Al Alloy&Plastic
Weight(Approx)                                             4.5kg    4.7kg    4.9kg
Impedance(Max,at 1000HZ)                     ≤60mΩ ≤80mΩ≤100mΩ
Cycle Life                                                      ＞800     ＞800   ＞800
Self-discharge Rate                                   <5%        <5%      <5%
Charge Method    Stand                            3A 8h       3A 6h    3A 5h
(CC/CV)                 Quick                             5A 5h       5A 4h    4A 4h

Charger Specification 
                                   AC Input                             100-230V 50HZ                                                      
                                   DC Output        29.4V 3-5h   42.0V 3-5A    54.6V 3-4A  
                                   Charge Time        5-8h,            4-6h,               4-5h
                                   Safety Certification    CE UL CUL PSE CB,ETC               
                                              

The battery pack is suitable for electric vehicle application whose voltage and power is below 500W,and current of controller is below 30A.