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48V rear rack lithium battery, 15Ah 16Ah 17.5Ah 20Ah 25Ah. Replacement for ECLIO Otium 2 City Cruiser. 457x155x79mm, 30A BMS, fits 250W-1500W motor.
ECLIO Otium 2 City Cruiser Replacement 48V Rear Rack Battery – 15Ah / 16Ah / 17.5Ah / 20Ah / 25Ah
This rear-rack lithium battery is a direct replacement for the ECLIO Otium 2 City Cruiser electric bike. Built to the same rear rack battery mount as the original 48V 16Ah pack, it delivers reliable power and longer range with quality 18650 cells and a smart BMS.
Compatibility
✅ ECLIO Otium 2 City Cruiser Electric Bike
✅ Also fits other e-bikes using the same rear-rack battery mount
✅ Fits motors rated 250W–1500W
Precise Dimensions & Specifications
| Parameter | Value |
|---|---|
| Battery Position | Rear rack |
| Nominal Voltage | 48V |
| Nominal Capacity | 15 / 16 / 17.5 / 20 / 25Ah |
| Dimensions | 457 × 155 × 79mm |
| Cell Type | 18650 Li-ion |
| Configuration | 13s4p / 13s5p |
| BMS Protection | 15A / 20A / 30A / 40A |
| Discharge Grade | 2C / 3C |
| Charger | 54.6V 2A / 3A / 4A |
| Fit Motor | 250W–1500W |
Package Includes
1 × Rear rack battery pack (capacity as ordered)
1 × 54.6V 2A/3A/4A charger
Key Features
✅ Drop-in Replacement: Built to the ECLIO Otium 2 rear rack battery mount specs for a true fit.
✅ Multi Capacity: 15Ah / 16Ah / 17.5Ah / 20Ah / 25Ah options to balance range and weight.
✅ Quality 18650 Cells: Stable discharge and long service life.
✅ Smart BMS: Over-charge, over-discharge, over-current and short-circuit protection.
✅ Wide Motor Support: Fits 250W–1500W hub motors for commuting and leisure.
Specifications
Brand: OEM compatible (customizable)
Product Name: Rear Rack E-bike Battery Pack
Nominal Voltage: 48V
Capacity: 15 / 16 / 17.5 / 20 / 25Ah
Dimensions: 457 × 155 × 79mm
Cell: 18650 Li-ion
Configuration: 13s4p / 13s5p
BMS: 15A / 20A / 30A / 40A
Discharge: 2C / 3C
Charger: 54.6V 2A / 3A / 4A
Compatible Bikes: ECLIO Otium 2 City Cruiser
Fit Motor: 250W–1500W
Important Notes
Please verify your bike’s original battery voltage is 48V and connector matches before ordering.
ECLIO Otium 2 original battery is 48V 16Ah / 768Wh; the 16Ah is an equal option and 17.5/20/25Ah are longer-range upgrades.
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.
We specialize in mid-drive motors and e-bike parts. Strict testing, powerful R&D and flexible OEM service guarantee long-term cooperation.
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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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Our team verifies compatibility according to your bike model, motor info or original part photos. We confirm available OEM parts or recommend workable alternative solutions.
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