Polly Downtube E-Bike Lithium Battery
This downtube e-bike battery is designed for electric bicycle applications and supports multiple voltage and capacity configurations.
Available Configurations
36V Options
• 36V 15.6Ah
• 36V 22.5Ah
• 36V 25Ah
48V Options
• 48V 13Ah
• 48V 18Ah
• 48V 20Ah
52V Options
• 52V 16Ah
• 52V 20Ah
Battery Features
• Smart BMS protection
• Overcharge protection
• Over-discharge protection
• Over-current protection
• Short-circuit protection
• Over-voltage protection
• Power switch
• Battery level indicator
• Key lock
• Removable battery base
• Charging port
Cell / Battery Information
Depending on the selected configuration, the battery may use 18650 or 21700 cells.
Typical battery cell capacities shown in the product information include:
• 2600mAh
• 4500mAh
• 5000mAh
BMS
• 30A BMS
Charging Current
• 2–5A
Motor Compatibility
• Suitable for approximately 250W–1000W motor applications
Temperature Range
• Charging Temperature: 0°C to 45°C
• Discharging Temperature: approximately -20°C to 60–65°C
Cycle Life
• More than 80% capacity after approximately 800 cycles
Battery Case Dimensions
Different battery capacities use different case heights.
Common case lengths and widths:
• Length: 368mm
• Width: approximately 90–95mm
Case heights shown:
• 96mm
• 113mm
• 123–125mm
• 141mm
Please check the dimensions of the selected battery configuration before ordering.
Output Connector Options
Available output connector options shown include:
• T Port
• Anderson 1
• XT60
• 3-Pin Port
• Anderson 2
• XT90
XT60 is shown as the default option in the product information.
Package Contents
• 1 × E-Bike Battery
• 1 × Charger
• 1 × Key Set
• 1 × Battery Base / Mounting Connection
Charger Plug Options
Depending on the destination market, charger plug options may include:
• US
• EU
• AU
• UK
Important Notice
Please confirm the required voltage, capacity, battery size, charger plug and output connector before placing your order.
Battery dimensions, cell type, weight and charging specifications vary by selected configuration. Please refer to the selected variant for the exact specification.