Hercules 48V 20Ah Lithium-Ion E-Bike Battery
Overview
Upgrade your e-bike with the Hercules 48V 20Ah UL Certified Lithium-Ion Battery. Built using premium 21700 lithium-ion cells, this high-capacity battery delivers dependable power, extended riding range, and long service life for demanding riders.
Designed for compatibility with Hercules battery systems, this battery is ideal for replacing worn-out batteries or increasing ride time on compatible electric bicycles.
Specifications
- Voltage: 48V
- Capacity: 20Ah
- Energy: 960Wh
- Cell Type: Premium 21700 Lithium-Ion Cells
- Certification: UL Certified
- Battery Management System: Integrated Smart BMS
- Charging Voltage: 54.6V
- Battery Style: Integrated Downtube Battery
- Color: Black
- Condition: Brand New
Features
- Premium 21700 lithium-ion cells
- High-capacity 960Wh battery
- UL Certified for safety
- Smart Battery Management System
- Long cycle life
- Excellent power delivery
- Lightweight aluminum battery housing
- Lockable removable battery
- Integrated charge indicator
- Weather-resistant construction
Estimated Riding Range
Actual range varies based on rider weight, terrain, assist level, tire pressure, and weather.
Typical range:
- Eco Mode: 50–80 miles
- Normal Mode: 35–60 miles
- High Assist: 25–40 miles
Compatible With
Compatible with bicycles designed for the Hercules integrated battery platform.
If you're unsure whether this battery fits your bike, contact EMP before ordering. We'll verify compatibility using photos of your existing battery and bike.
Included
- Hercules 48V 20Ah Battery
- Battery Keys
- Battery Mounting Hardware (if applicable)
- User Documentation
Charger sold separately unless otherwise stated.
Safety Features
- Overcharge Protection
- Over-discharge Protection
- Short Circuit Protection
- Overcurrent Protection
- Temperature Protection
- Cell Balancing Technology
Why Buy From EMP?
- U.S. Based Support
- Fast Shipping
- Battery Compatibility Assistance
- Professional Customer Service
- Premium Quality Batteries
- Expert E-Bike Battery Specialists
Shipping
- Ships from the United States
- Professionally packaged
- Hazmat compliant shipping
- Tracking provided after shipment
Warranty
1-Year Limited Warranty
Warranty covers manufacturing defects under normal use.
Frequently Asked Questions
Will this fit my bike?
This battery is designed for compatible Hercules battery systems. Contact us with photos before ordering if you're unsure.
Does it include a charger?
Unless otherwise specified, the charger is sold separately.
Is this battery UL Certified?
Yes. This battery is UL Certified and built with premium lithium-ion cells.
How long will it last?
Most riders can expect 800–1,000 charge cycles with proper care.
🔧 Battery Rebuild Service
We rebuild your existing battery using fresh, high-quality cells to restore or increase capacity and performance.
- Full disassembly, rebuild, and testing
- Upgraded capacity options available
- Uses brand new name-brand cells
- Turnaround time: Approximately 14 business days
- Timeline includes the time it takes for us to receive your battery and complete the rebuild
⚡ Custom Battery Builds
Fully custom battery solutions designed to meet your exact specifications. This is ideal for unique applications or when a standard battery will not fit your needs.
- Custom shapes and sizes
- Custom BMS (Battery Management System) configurations
- Choice of cells and performance levels
- Option for enclosed case or raw (naked) pack
- Built specifically for your application
- Turnaround time: Approximately 21 business days
🔋 Battery Packs (Encased)
Battery packs built using one of our in-stock cases. These are a great option if you want a reliable, ready-to-fit solution.
- Uses pre-designed cases from our inventory
- Proven, reliable configurations
- Faster than fully custom builds
- Turnaround time: Approximately 14 business days
🔬 Battery Cells (Individual Cells)
We supply high-quality lithium-ion cells for repairs, upgrades, and custom builds.
- In-stock cells: Ship within 3–6 business days
- Out-of-stock (air shipping): Approximately 10 business days
- Out-of-stock (sea shipping): Approximately 40 days
📦 Shipping & Intake Process
- Place your order or request a quote
- Fill out our Battery Intake Form
- Send in your battery (include charger and key if required)
- We inspect and test your battery
- We contact you with results and recommended options
Important Information
Turnaround times begin once your battery is received and checked into our system.
During high demand periods or for complex builds, timelines may be slightly extended.
Shipping Method
- All batteries are shipped via ground service only (FedEx or UPS) in compliance with DOT and IATA regulations for lithium batteries.
- Expedited air shipping is not available for lithium battery products.
Delivery Time
- Ground shipping typically takes 3–7 business days within the U.S.
- Tracking information will be provided as soon as your order ships.
Local Pickup
- Pickup is available at our Las Vegas facility:
4856 Judson Ave Suite 155 Las Vegas, NV 89115
Monday– Thursday, 9:00 AM – 4:00 PM ( Friday by appointment).
Returns
- Returns are accepted within 14 days of delivery on unused, unopened batteries.
- For rebuilds and custom packs, all sales are final unless defective.
Important Notes
- Shipping is limited to the continental United States.
- Customers are responsible for providing a valid shipping address — carriers cannot deliver to P.O. Boxes.
- Signature may be required at delivery for higher-value battery orders.
