PRODUCTS

72V E-Bike / E-Trike Lithium-ion(LiFePO4) Battery
    Publish time 2025-10-09 16:41    
72V E-Bike / E-Trike Lithium-ion(LiFePO4) Battery




Key Features


Grade A Prismatic LiFePO4 Cells

72V series E-Bike/E-Trike power batteries come with brand new grade A Lithium Iron Phosphate (LiFePO4) from tier-one cells manufacturers, like EVE, Lishen, Gotion etc.


High Power and Smart BMS

All quarelex E-Bike/E-Trike lithium power batteries are equipped with high power BMS(Battery Management System) which can handle the current surge during acceleration and climbing.


On-board LCD Monitor Screen

LCD screen directly connected to BMS allows operator to monitor the real-time data of the battery, including pack voltage, current, SOC(State Of Charge), temperature, alarm, etc.


Full-range Protection

Overcharge, Over-discharge, Over voltage, Under voltage, Over current, Short Circuit, Over temperature, Under temperature, etc.


Fast Charging

LiFePO4 E-Bike/E-Trike batteries can be fully charged as fast as within 1 hour, and do not need long cool-down time like lead-acid battery.


Maintenance Free

LiFePO4 E-Bike/E-Trike batteries do not need regular maintenance like lead-acid batteries.




Key Specifications


Nominal Voltage: 72V

Capacity: 50 / 100Ah

Rated Energy: 3.6 / 7.2 kWh

Dimensions: Standard or Customizable

IP Grade: IP65

Cell Chemistry: Lithium Iron Phosphate (LiFePO4)

Wireless Monitoring: Bluetooth Optional

Lifespan: >3500 cycles @80% DoD, 25°C(77°F), 0.5C

Warranty: 2 years


ModelQM72-50QM72-100
Electrical
Nominal Voltage 76.8 V
Operation Voltage60 - 87.6 V
Rated Capacity50 Ah100 Ah
Rated Energy3.84 kWh7.68 kWh
Estimated Range Per 100% SOC65-75 miles (105-120 km) @ 50km/h130-150 miles (210-240 km) @ 50km/h
Suggested DoD< 90%
Max DoD100%
Self-Discharge< 3% per Month
Cells TypeLiFePO4 Prismatic
Cell Model3.2 V 50 Ah 3.2 V 100 Ah 
Cells Configuration24S1P24S1P
Balancing400 mA, Active Balancing
Charge
Charge Voltage72 V
BMS Charge Voltage Cut-Off72 V
Recommended Charge Current< 25 A< 50 A
Max. Continuous Charge Current50 A100 A
Charge Temperature0 - 55 °C (32 - 131 °F)
Discharge
Max. Continuous Discharge Current60 A100 A
Peak Discharge Current100 A @ 10S200 A @ 10S
Recommended Low Voltage Cut-Off69.6 V
BMS Discharge Voltage Cut-Off60 V
Discharge Temperature-20 - 60 °C (-4 - 140 °F)
Mechanical
Dimensions460 * 230 * 160 mm
(18.11 * 9.06 * 6.3 inch)		640 * 240 * 180 mm
(25.2 * 9.45 * 7.09 inch)
Weight36 kg (79.37 lbs)63 kg (138.89 lbs)
Terminal TypeCharge: Anderson, Discharge: Anderson
Case MaterialPowder Coated Steel
Enclosure ProtectionIP65
Communication
LCD ScreenYesYes
BluetoothYesYes
CANYesYes
Safety And Warranty
Protection FunctionOvercharge, Over-discharge, Over current, Short Circuit, Over Temperature, Under Temperature
Storage0 - 40 °C (32 - 104 °F), < RH 80%, > 60% SOC
Warranty2 Years
Lifespan10 years or 3500 Cycles @ 25°C, 80% EOL
CertificatesCE, RoHS, UN38.3, IEC, MSDS

1. All specifications shown above are subject to change during products improving at any time without prior notice.

2. For other batteries not listed above, customization is also available.

Download