Koolux BK6S & Koolux BK6S PRO eBike Battery - 48V

Koolux BK6S & Koolux BK6S PRO eBike Battery - 48V48V 13Ah Silverfish Lithium Battery Pack for Koolux BK6S 4. 0 & Koolux BK6S PRO Upgrade your Koolux BK6S 4. 0 Folding E Bike or BK6S PRO with this high performance 48V 13Ah Silverfish lithium battery designed to deliver stronger torque, smoother acceleration, and excellent long distance capability. Built with 2600mAh A+ Grade cells and an intelligent 30A BMS, this battery ensures stable voltage output, reliable power delivery, and long term durability

48V 13Ah Silverfish Lithium Battery Pack for Koolux BK6S 4.0 & Koolux BK6S PRO

Upgrade your Koolux BK6S 4.0 Folding E-Bike or BK6S PRO with this high-performance 48V 13Ah Silverfish lithium battery designed to deliver stronger torque, smoother acceleration, and excellent long-distance capability. Built with 2600mAh A+ Grade cells and an intelligent 30A BMS, this battery ensures stable voltage output, reliable power delivery, and long-term durability for both commuting and extended riding.

Key Features

• Optimised for Koolux BK6S Models: Fully compatible with BK6S 4.0 and BK6S PRO, ensuring improved torque and stable output.
• High-Power Performance (48V 13Ah): Delivers smooth acceleration, reliable torque, and steady voltage.
• A+ Grade 2600mAh Cells: Provides long lifespan, stable performance, and high efficiency.
• 30A Intelligent BMS: Protects against overcharge, discharge, overcurrent, overheating, and short-circuit faults.
• 4-Pin Charging Port: Safe and stable charging interface for Koolux Silverfish systems.
• Durable Aluminium Silverfish Case: Offers excellent heat dissipation, strength, and long-term durability.
• Secure Locking System: Comes with 2 keys to lock the battery to the mounting rail to prevent theft.
• On/Off Switch: Allows safe shutdown when not in use to preserve battery life.

Technical Specifications

• Voltage: 48V
• Capacity: 13Ah
• Battery Type: Lithium-Ion (Li-Ion)
• Cell Specification: 2600mAh A+ Grade
• Configuration: 13S5P
• BMS Rating: 30A Intelligent Protection
• Suitable Motor Power: 200W – 1000W
• Charging Pins: 4-Pin Interface
• Charger: 54.6V 3A Fast Charger Included
• Default Connector: XT60 Female
• Dimensions: 390mm × 110mm × 75mm
• Weight: 4.8 kg
• Colour: Silver
• Material: Aluminium Housing
• Certifications: UKCA, CE, UN38.3, MSDS

What's Included

• 1 × 48V 13Ah Silverfish Battery
• 1 × 54.6V 3A Charger
• 2 × Keys
• 1 × 4-Pin Discharge Cable (XT60 Female)
• 1 × Mounting Rail
• 1 × Instruction Manual

Compatible With

This battery is fully compatible with:

• Koolux BK6S 4.0 Folding E-Bike
• Koolux BK6S PRO

It also works with various 48V Silverfish-style e-bikes including folding bikes, city bikes, trekking bikes, e-MTBs, and 48V electric bike conversion kits.

Quality & Reliability

Each battery undergoes strict testing to ensure capacity accuracy, voltage stability, and long-term durability. Designed for hundreds of charge cycles, this replacement battery restores your Koolux e-bike to peak performance with dependable power for daily commuting or long-distance riding.