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48V 20Ah E-Bike Battery | Genuine Samsung 21700 Cells | 960Wh Lithium-Ion Battery with Bluetooth & 5A Fast Charger
$444.99
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$444.99
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$444.99
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$444.99
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$444.99
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$459.99
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$459.99
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$459.99
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$459.99
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$459.99
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$444.99
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- 🔋High Capacity & Long Range : Get 30-50 miles of range with this 48V 20Ah lithium battery. Powered by genuine Samsung 21700-50G cells in a 13S4P setup, it delivers 960Wh of energy – perfect for long commutes and adventure rides.
- ⚖️ Lightweight & Compact : Tipping the scales at just 8.4 lbs (3.8kg) and measuring a slim 11.6" x 4.5" x 3.0" (295x115x75mm), this compact 48V 20Ah ebike battery fits most e-bike frames easily. You'll hardly notice the weight, but you'll definitely notice the extra power.
- 📱 Smart Bluetooth Monitoring : Keep an eye on your power with the built-in Bluetooth BMS. This 48V 20Ah battery lets you track voltage, capacity, and health right from your phone – plus control charging on the go.
- ⚡ Fast Charging Included : Comes ready to ride with a 5A fast charger. This 48V battery 20Ah goes from empty to full in just 4-5 hours, with built-in protection for safe, worry-free charging.
- 🛡️ Built to Last : Engineered to handle the road, this tough electric bike battery 48V 20Ah features professional construction and Samsung cell technology for reliable performance that stands the test of time.
BMS Discharge Current (Select Motor Power)
30A | For 500W - 750W Motors
40A | For 750W - 1200W Motors
Discharge Plug
Anderson 50A
XT90F/M
XT60F/M
QS8 plug
Wire only
BMS Discharge Current (Select Motor Power)
Discharge Plug
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30 Day Return
100% Secure Payment
24-Hour Prompt Response
1 Years Warranty
Secure Payment
48V 20Ah E-Bike Battery with Samsung 50G Cells
Premium Power Solution: Our high-performance 48V 20Ah lithium battery features 52 genuine Samsung 21700 50G cells in a 13S4P configuration. Designed for demanding applications including e-bikes, electric scooters, this battery delivers reliable energy storage with extended cycle life and stable output.
🔋 Samsung 50G Cells
Core specifications and configuration:
- Configuration: 13S4P (52 cells total)
- Cells: Genuine Samsung 21700 50G
- Voltage: 48V nominal, 54.6V fully charged
- Capacity: 20Ah (960Wh total energy)
- Applications: E-bikes, scooters, EVs, power systems
📲 Smart BMS App
Smart monitoring and control features:
- Bluetooth BMS: Real-time battery monitoring
- Mobile App: iOS & Android compatibility
- Remote Control: Manage charging/discharging
- Safety Protection: Overcharge, over-discharge, short circuit
- Temperature Control: Thermal management system
⚡ Complete Kit
Complete package with accessories:
- Fast Charger: 54.6V 5A smart charger included
- Charging Time: Approximately 4-5 hours
- Encapsulation: Durable PVC shrink film
- Connectors: Standard XT60/XT90 available
- Warranty: 12-month manufacturer warranty
Samsung 21700-50G - Premium High-Capacity Lithium-Ion Battery Cell
Premium battery technology that delivers real advantages for your e-bike or electric vehicle
High Capacity & Performance
Combining exceptional capacity with reliable power delivery for superior performance:
- 4850mAh capacity for longer riding range and extended usage time
- High power output for better acceleration and hill-climbing capability
- Consistent performance in e-bikes, e-scooters, and power tools
Long Lifespan & Durability
Engineered for longevity and reliable performance over time:
- 500+ charge cycles ensure years of reliable service
- Minimal capacity loss over extended use for better long-term value
- Stable performance maintains efficiency throughout battery life
Samsung Quality & Safety
Backed by Samsung's reputation for quality and built-in safety:
- Manufactured to strict standards ensuring consistent quality
- Proven safety features for reliable and secure operation
- Brand reliability you can trust for critical applications
Smart Bluetooth BMS Features
📱 Real-Time Monitoring: Check battery status via app - voltage, capacity, temperature
⚡ Smart Charging: Extends battery life with optimized charging algorithms
🛡️ Safety Protection: Automatic protection against over-voltage, over-current, short-circuit
🔧 Diagnostics: Get alerts for abnormal conditions and maintenance reminders
Choose Your BMS Version
🔋 30A BMS Version
For: 500W - 750W motors
Power: 1,440W peak (48V × 30A)
Ideal for standard e-bikes and city commuting
⚡ 40A BMS Version
For: 750W - 1,200W motors
Power: 1,920W peak (48V × 40A)
For high-performance e-bikes and steep hills
Both versions include all Smart Bluetooth features. The only difference is maximum continuous discharge current.
Professional Cell Mounting System
🔧 Secure Cell Housing
Precision frame securely holds each Samsung 50G cell, protecting against vibration and impacts.
🌡️ Optimized Heat Management
Individual cell spacing ensures proper heat dissipation and prevents overheating.
🛡️ Enhanced Safety Design
Professional frame prevents cell movement and damage, extending battery lifespan.
Premium construction for reliable performance and safety
54.6V 5A Smart Fast Charger
Included with your 48V 20Ah battery
30A Vs 40A BMS: Choose Your Power Level
Select the optimal BMS version for your e-bike motor. Both deliver the same 20Ah capacity with different performance characteristics.
30A BMS VERSION
OPTIMAL FOR MOTORS
500W - 750W
PERFECT FOR:
🏙️
City Commuting
🛣️
Flat Terrain
💰
Cost-Effective
⚡
Daily Use
PEAK POWER OUTPUT
1,440W
48V × 30A Continuous
40A BMS VERSION
OPTIMAL FOR MOTORS
750W - 1,200W
PERFECT FOR:
⛰️
Hilly Terrain
🚴
High Performance
⚡
Max Speed
🛡️
Power Headroom
PEAK POWER OUTPUT
1,920W
48V × 40A Continuous
⚡ Quick Decision Guide
30A
For Standard E-Bikes
Ideal for city commuting, flat terrain, and casual riding with 500-750W motors.
40A
For High-Performance
Perfect for hilly terrain, off-road, and high-speed riding with 750-1200W motors.
🔋
Same 20Ah Capacity
Both versions deliver identical 20Ah capacity and range - only power output differs.
💡
How to Choose
1. Check your motor's wattage rating (usually printed on the motor housing)
2. Consider your terrain - hills require more power
3. When in doubt, choose the 40A version for extra power headroom and future-proofing
2. Consider your terrain - hills require more power
3. When in doubt, choose the 40A version for extra power headroom and future-proofing
❓ How long will a 48V 20Ah battery last?
A common question from e-bike riders about battery range and lifespan
⚡ Quick Answer
A 48V 20Ah lithium battery typically provides 30-50 miles (50-80 km) per charge, with a lifespan of 500+ charge cycles with proper care.
📊 Detailed Breakdown
500W Motor
40-50 miles
65-80 kilometers
Ideal for flat terrain & lightweight riders
750W Motor
30-40 miles
50-65 kilometers
Perfect for mixed terrain & daily commuting
1000W+ Motor
20-30 miles
35-50 kilometers
Best for hilly terrain & high-performance
🔋 Key Factors That Affect Range
🏋️
Weight Load
Rider + cargo weight affects range
⛰️
Terrain
Hills use 2-3x more power
🌡️
Temperature
Cold reduces range by 20-30%
💨
Riding Style
Aggressive acceleration uses more power
💡
Maximize Your Battery Life
✓ Optimal Charging
Charge to 80-90% for daily use, 100% only before long rides
✓ Avoid Deep Discharge
Don't let battery regularly drop below 20% capacity
✓ Smart Charger Use
Use included 54.6V 5A smart charger for best results
Technical Note: Estimates based on our 48V 20Ah lithium battery with 52 Samsung 21700 50G cells in 13S4P configuration (960Wh total energy). Battery includes smart Bluetooth BMS for monitoring. Actual range varies with usage conditions, maintenance, riding style, and environmental factors.
48V 20Ah Battery - Key Specifications
🔋 Battery Configuration
Configuration
13S4P
52 cells total
Cells
Samsung 50G
Premium quality
Capacity
20Ah
960Wh total energy
Voltage
48V
Nominal / 54.6V full
⚡ Samsung 50G Cells
Each Cell Capacity
4850mAh
Continuous Discharge
9.8A per cell
Cycle Life
500+ cycles
📱 Smart BMS System
Bluetooth App
Real-time Monitoring
BMS Versions
30A / 40A
Continuous discharge
Safety Protection
Full Protection Suite
🔌 Charger & Physical Specs
Fast Charger
54.6V 5A
4-5 hours full charge
Dimensions
295×115×75mm
Compact design
Weight
~3.8kg
8.4 lbs - lightweight
⚠️ Key Recommendations
💡 Optimal Storage
Store at 40-60% charge when not in use. Avoid long-term storage at full or empty charge.
🌡️ Temperature Control
Charge between 0-45°C for best performance. Operating range: -20°C to 60°C.
🛡️ Maintenance
Keep battery dry and avoid physical impacts. Regular use maintains optimal performance.
