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Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Image 1
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Image 3
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Image 4
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Image 5
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Image 6
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Image 7
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Image 8
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Thumbnail Image 1
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Thumbnail Image 3
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Thumbnail Image 4
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Thumbnail Image 5
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Thumbnail Image 6
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Thumbnail Image 7
Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack - Thumbnail Image 8

Westhill Link 20 Folding Electric Bike Battery 36V 7.8Ah 9Ah 9.6Ah 10.5Ah Lithium Down-tube Battery Pack

36V down-tube lithium battery for Westhill Link 20. 7.8Ah 9Ah 9.6Ah 10.5Ah, 10s3p, 375x85x42mm, 30A BMS, 2C/3C discharge, USB port, key lock, fits 250W-1500W.

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Westhill Link 20 Replacement 36V Down-tube Battery – 7.8Ah / 9Ah / 9.6Ah / 10.5Ah
This 36V down-tube lithium battery is a direct replacement for the Westhill Link 20 folding electric bike. Built to the down-tube battery mount, it delivers reliable power and range with a smart BMS, USB port and key lock.
Compatibility
✅ Westhill Link 20 Folding Electric Bike
✅ Fits motors rated 250W–1500W
Precise Dimensions & Specifications
ParameterValue
Battery PositionDown tube
Nominal Voltage36V
Nominal Capacity7.8 / 9 / 9.6 / 10.5Ah
Dimensions375 × 85 × 42mm (14.76 × 3.35 × 1.65 in)
MaterialPlastic
Configuration10s3p
BMS Protection15A / 20A / 30A / 40A
Discharge Rate2C / 3C
Charger42V 2A / 3A / 4A
PortsDischarge port, charging port, USB port, power switch, key lock
Fit Motor250W–1500W
Package Includes
1 × Down-tube battery pack (capacity as ordered)
1 × 42V charger (2A/3A/4A)
Key Features
✅ Drop-in Replacement: Built to the Westhill Link 20 down-tube battery mount for a true fit.
✅ Multi Capacity: 7.8Ah / 9Ah / 9.6Ah / 10.5Ah options to balance range and weight.
✅ On-board USB Port: Charge your phone or accessories directly from the battery.
✅ Smart BMS: Over-charge, over-discharge, over-current and short-circuit protection.
✅ Key Lock & Switch: Secure key lock and power switch for daily use.
Specifications
Brand: OEM compatible (customizable)
Product Name: Down-tube Lithium Battery
Nominal Voltage: 36V
Capacity: 7.8 / 9 / 9.6 / 10.5Ah
Dimensions: 375 × 85 × 42mm (14.76 × 3.35 × 1.65 in)
Material: Plastic
Configuration: 10s3p
BMS: 15A / 20A / 30A / 40A
Charger: 42V 2A / 3A / 4A
Battery Style: Down-tube
Compatible Bikes: Westhill Link 20
Fit Motor: 250W–1500W
Important Notes
Please verify your bike’s original battery voltage is 36V and connector matches before ordering.
Capacity, weight and dimensions may vary slightly by option; allow minor measurement tolerance.
Only the battery and charger are included; other accessories are not part of the package.
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We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.

We serve mainstream drive system manufacturers: Ananda, Bafang, Aikema, Tongsheng, Shengyi, Bosch and more. We also provide repair components for complete e-bike brands including Sur‑Ron, Aventon, Trek and many others.

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