Down Tube E-Bike Lithium Battery 48V/52V/60V 10Ah-20Ah | Smart BMS, OEM Ready

Product Overview

The Silverfish Down Tube rechargeable e-bike lithium battery features high-energy 21700 cells, available in capacities of 10Ah, 15Ah, and 20Ah, and compatible with 48V, 52V, and 60V systems.

Key Features:

• Durable lightweight aluminum alloy housing – shockproof, dustproof, waterproof

• Built-in smart BMS: overcharge / over-discharge / overcurrent / short circuit / temperature protection + cell balancing

• Stable output for long-range riding on electric bikes and e-scooters

• Supports OEM customization and B2B wholesale orders

Key Selling Points

High-Performance Power

• High-energy 21700 cells support 500-1000W motor output

• Single charge range: 30-50 miles (approx. 48-80 km, depending on motor power and riding conditions)

Smart Safety Protection

• Multiple protection features: overcharge, over-discharge, overcurrent, short circuit, temperature protection

• Cell balancing extends battery lifespan, ensuring safe riding

Lightweight Design

• Aluminum alloy black-silver housing – impact-resistant, sleek, and durable

• Equipped with handle and safety lock – easy to install and carry

Long Lifespan & Efficiency

• Cycle life ≥1000 times, maintaining ≥80% capacity

• Service life up to 3+ years, reducing replacement costs

Convenient Features

• LED battery indicator for real-time power monitoring

• Anti-theft safety lock and portable handle

Eco-Friendly & Energy-Saving

• 50% lighter than lead-acid batteries

• High charging/discharging efficiency, low self-discharge, environmentally friendly

OEM & Wholesale Ready

• Supports brand customization and bulk orders

• Professional technical support and 1-year warranty

Battery Specifications

Features & Certification

Installation & Usage

1. Mount the battery holder

   • Use screws to securely attach the holder to the bike down tube

2. Install the battery

   • Slide the battery into the holder and lock in place

3. Connect to controller

   • Red wire = positive, Black wire = negative, connect to the e-bike controller

4. Power on and test

   • Press the power switch to confirm normal operation

5. Check battery level

   • Press the D button to view LED battery status:

     • 1 Red + 2 Green = 100%

     • 1 Red + 1 Green = 50%

     • 1 Red = 20%

FAQ

Q1: Which vehicles are compatible?

• A: Compatible with most electric bikes and e-scooters, supporting various motor powers.

Q2: Available capacities and voltages?

• A: Capacities: 10Ah / 15Ah / 20Ah; Voltages: 48V / 52V / 60V

Q3: Charging time and cycle life?

• A: Charging 3-8 hours; cycle life ≥1000 cycles (≥80% capacity retained)

Q4: Is OEM customization available?

• A: Yes, supports brand customization and bulk orders with professional technical support

Q5: Certifications and safety standards?

• A: CE, UN38.3, MSDS, compliant with international shipping and sales standards