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Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Image 1
Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Image 3
Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Image 4
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Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Image 6
Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Image 7
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Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Thumbnail Image 1
Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Thumbnail Image 3
Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Thumbnail Image 4
Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Thumbnail Image 5
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Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Thumbnail Image 7
Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5" Electric Mountain Bike - Thumbnail Image 8

Replacement 48V Hidden Down-tube Battery for RANDRIDE YS90 27.5″ Electric Mountain Bike

48V integrated hidden lithium battery for RANDRIDE YS90. 10.4Ah 12Ah 14Ah, 68x86x532mm, 20A BMS, Korea/Japan 18650 cells, 3.8kg, fits 250W-500W. Display, charge & discharge ports.

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RANDRIDE YS90 Replacement 48V Hidden Integrated Battery – 10.4Ah / 12Ah / 14Ah
This 48V integrated lithium battery is a direct replacement for the RANDRIDE YS90 27.5″ electric mountain bike. Designed as a hidden down-tube battery, it preserves the clean frame look while delivering reliable power and range.
Compatibility
✅ RANDRIDE YS90 Electric Bike
✅ Fits motors rated 0–500W
Precise Dimensions & Specifications
ParameterValue
Battery PositionIntegrated (hidden down-tube)
Nominal Voltage48V
Nominal Capacity10.4 / 12 / 14Ah
Dimensions68 × 86 × 532mm (2.68 × 3.39 × 20.94 in)
Cell TypeKorea/Japan 18650 Li-ion
Cell Capacity2600 / 3000 / 3500mAh
Configuration13s4p
BMS Protection20A
Charger54.6V 2A
Weight3.8kg
Cycle Life800–1000 times
PortsDisplay, charge port, discharge port
Fit Motor250W–500W
Package Includes
1 × Integrated battery pack (capacity as ordered)
1 × 54.6V 2A charger
Key Features
✅ Drop-in Replacement: Built to the RANDRIDE YS90 hidden down-tube battery mount for a true fit.
✅ Multi Capacity: 10.4Ah / 12Ah / 14Ah options to balance range and weight.
✅ Quality Korea/Japan 18650 Cells: Stable discharge and long service life.
✅ Smart 20A BMS: Over-charge, over-discharge, over-current and short-circuit protection.
✅ Compact Hidden Design: Keeps the frame clean while providing power.
Specifications
Brand: OEM compatible (customizable)
Product Name: Integrated Lithium Battery
Nominal Voltage: 48V
Capacity: 10.4 / 12 / 14Ah
Dimensions: 68 × 86 × 532mm (2.68 × 3.39 × 20.94 in)
Cell: Korea/Japan 18650 (2600/3000/3500mAh)
Configuration: 13s4p
BMS: 20A
Charger: 54.6V 2A
Weight: 3.8kg
Cycle Life: 800–1000 times
Compatible Bikes: RANDRIDE YS90
Fit Motor: 250W–500W
Important Notes
Please verify your bike’s original battery voltage is 48V 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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