Product Description
48V 20Ah Rear Rack E-Bike Battery Pack
High-Capacity Lithium Battery for Electric Bikes | 60A Peak Discharge | 800 Cycles
The PG-RR4820 rear rack battery is a high-performance 48V 20Ah lithium-ion battery pack designed for electric bicycles, cargo bikes, and light electric vehicles. Featuring a 13S10P configuration with premium 18650 cells, it delivers 20A continuous discharge and a powerful 60A peak current, making it ideal for 1000W–2000W motor systems. Built with an intelligent BMS, this battery ensures safety, long cycle life, and easy rear rack installation.
📊 Technical Specifications
| Product Model | PG-RR4820 |
|---|---|
| Nominal Voltage | 48V (13S) |
| Nominal Capacity | 20Ah (0.5C discharge) |
| Cell Type | 18650 lithium-ion battery (2200mAh cells) |
| Configuration | 13S10P (130 cells) |
| Working Voltage Range | 39V – 54.6V |
| Standard Charge Current | 4A |
| Max. Continuous Discharge Current | 20A (adjustable) |
| Peak Discharge Current | 60A (adjustable) |
| Net Weight | Approx. 4.5 kg |
| Dimensions (L×W×H) | 395 × 150 × 80 mm |
| Cycle Life | 800 cycles (80% DOD) |
| Charge Temperature | 0°C – 45°C |
| Discharge Temperature | -20°C – 60°C |
| BMS Protections | Over-charge, over-discharge, over-current, short circuit, cell balancing |
⚡ Key Features
- High Capacity 20Ah – provides extended range for long-distance commuting and heavy cargo loads.
- Powerful Output – 20A continuous (60A peak) supports motors up to 2000W for steep hills and high-speed riding.
- Rear Rack Mount Design – easy installation on standard rear racks, perfect for cargo bikes, touring e-bikes, and commuters.
- Long Cycle Life – 800 cycles at 80% depth of discharge, backed by high-quality 18650 cells.
- Smart BMS Protection – ensures safety with over-charge, over-discharge, over-current, short circuit, and cell balancing.
- Adjustable Current Limits – both continuous and peak discharge currents can be customized to match your controller.
🚲 Applications
- Electric bicycles – 1000W–2000W motors, fat tire e-bikes, cargo bikes
- Electric scooters & mopeds – 48V scooter platforms
- Light electric vehicles (LEVs) – e-tricycles, delivery vehicles
- Custom EV projects – DIY conversions, solar storage, backup power
📦 Installation & Safety
- Ensure your rear rack is compatible with the battery dimensions (395×150×80 mm).
- Use only a 54.6V lithium battery charger (4A or higher recommended).
- Avoid discharging below 39V to maximize cycle life.
- Store at approximately 50% charge in a cool, dry place when not in use.
- Do not disassemble, short circuit, or expose to fire.
📞 Need a custom 48V rear rack battery?
We offer OEM/ODM services – customize capacity, dimensions, connectors, and BMS settings. Contact our engineering team for sample requests, technical documentation, and volume pricing.
We offer OEM/ODM services – customize capacity, dimensions, connectors, and BMS settings. Contact our engineering team for sample requests, technical documentation, and volume pricing.
🔍 SEO Keywords & Technical Terms
Primary: 48V 20Ah rear rack battery · e-bike rack battery · 13S10P lithium battery · 20A continuous discharge · 60A peak · electric bicycle battery · PG-RR4820 · Panasonic 18650 battery pack
Performance: 800 cycles · 20A continuous · 60A peak · over-charge protection · cell balancing · 395×150×80 mm · 4.5kg
Applications: electric bicycle · cargo bike · 1000W motor · 2000W motor · rear rack e-bike · custom battery pack
Primary: 48V 20Ah rear rack battery · e-bike rack battery · 13S10P lithium battery · 20A continuous discharge · 60A peak · electric bicycle battery · PG-RR4820 · Panasonic 18650 battery pack
Performance: 800 cycles · 20A continuous · 60A peak · over-charge protection · cell balancing · 395×150×80 mm · 4.5kg
Applications: electric bicycle · cargo bike · 1000W motor · 2000W motor · rear rack e-bike · custom battery pack
