KIITOKOLO Hailong Downtube Lithium-Ion Battery Pack –

36V / 48V / 52V Nominal (9Ah, 12Ah, 15Ah, 18Ah) for Bafang BBS02, BBS03 & BBSHD Mid-Drives, Hub Motors & Trolling Motors (Built-in BMS, Security Lock & CE/KC Certified)

Upgrade your electric bike conversion or trolling motor setup with the KIITOKOLO Hailong Smart Lithium-Ion Battery Series. Engineered in the industry-standard Hailong downtube casing (370 × 110 × 90 mm), this versatile battery platform provides dependable, high-drain power specifically optimized for Bafang mid-drive systems (BBS02, BBS03, BBSHD), hub motor kits, and electric trolling motors.

Constructed using high-density 18650 cylindrical cells, the KIITOKOLO Hailong battery is available in 36V, 48V, and 52V nominal configurations with capacity choices ranging from 9Ah to 18Ah. Every pack features an integrated smart Battery Management System (BMS) to regulate cell health, an anti-theft key lock, and a quick-release mounting bracket for effortless frame installation.

⚠️ System Voltage & Motor Compatibility Guide

MATCH YOUR MOTOR SYSTEM VOLTAGE:

• 36V Packs (10S): Ideal for 250W–500W 36V hub motors and mid-drives. Charge cut-off voltage = 42.0V DC.

• 48V Packs (13S): Standard for Bafang BBS02 (750W) and 48V hub kits. Charge cut-off voltage = 54.6V DC.

• 52V Packs (14S): High-performance option for Bafang BBSHD (1000W+) and CYC mid-drives for increased top speed and efficiency. Charge cut-off voltage = 58.8V DC.

• Integrated Smart BMS: Features full protective circuitry guarding against over-charge, over-discharge, short circuit, and over-current conditions.

🚀 Key High-Performance Features

• Bafang Mid-Drive Optimized: Purpose-built to handle high startup torque and continuous discharge demands of Bafang BBS02, BBS03, and BBSHD motors.

• Dual Application (E-Bike & Trolling Motors): Versatile high-current discharge platform suitable for both frame-mounted e-bikes and small marine trolling motors.

• Standard Hailong Form Factor: Compact 370 × 110 × 90 mm frame footprint mounts directly to standard water bottle bosses on most bike frames.

• Quick-Release Lock & Key: Features an integrated locking pin system with security keys to lock the battery firmly to the baseplate or detach it for indoor charging.

• LED Power Indicator: Built-in push-button LED charge gauge allows you to check battery capacity levels at a glance.

• Dual International Certification: Fully tested and certified under CE and KC safety standards.

📊 Technical Specifications Matrix