ELECTRIC BIKE BATTERY FOR S17-1500W

Description

The Direct Replacement Battery for AOSTIR S17-1500W

First, the ELECTRIC BIKE BATTERY FOR S17-1500W is a purpose-built 48V 20Ah lithium-ion power pack designed specifically for the AOSTIRMOTOR S17-1500W electric fat tire mountain bike . Whether your original battery has worn out or you need a spare for extended rides, this replacement battery restores your S17 to full factory performance.

Compatible AOSTIR S17 Model

This battery is compatible with the AOSTIRMOTOR S17-1500W electric bike . This model is known for its distinctive red, white, and blue American flag color scheme and full-suspension fat tire design .

All S17-1500W units share the same battery interface, connector type, and Hailong-style mounting system, making this a universal replacement for the entire S17-1500W production line .

48V 20Ah Samsung Battery Specifications

The battery features a nominal voltage of 48V with a capacity of 20Ah (ampere-hours) using premium Samsung lithium-ion cells . This translates to approximately 960 watt-hours (Wh) of total energy storage (48V × 20Ah = 960Wh).

Real-world range expectations:

Premium Samsung Battery Cells

The ELECTRIC BIKE BATTERY FOR S17-1500W uses high-quality Samsung lithium-ion cells for reliable performance and long cycle life . According to manufacturer specifications, these cells provide consistent power delivery even under the high demand of the 1500W motor system.

For maximum battery lifespan:

• Store at partial charge (40-60%) for long-term storage
• Avoid exposing the battery to extreme temperatures
• Recharge regularly to extend battery life 

Integrated BMS Protection System

A sophisticated Battery Management System (BMS) is built into every S17-1500W battery. This system provides:

The BMS is rated for the 48V 30A controller used in the S17-1500W system .

Hailong Mounting and Installation

The battery is designed to slide into the downtube mounting base of your AOSTIR S17-1500W e-bike . The Hailong-style mounting system features:

• Key lock mechanism – Secures the battery to the frame
• Spring-loaded contacts – Ensure reliable electrical connection
• Slider alignment – The battery slides onto the mounting base from the side

To install: Align the slider grooves, slide the battery onto the mounting base, press firmly until you hear a click, and turn the key to the locked position.

48V 30A Controller Compatibility

The battery is specifically designed to work with the S17-1500W’s 48V 30A controller . This pairing ensures proper power delivery and communication between the battery and the 1500W Boneng brushless geared hub motor .

Dual Suspension Frame Integration

The S17-1500W features a 6061 aluminum alloy frame with full suspension (double shoulder front fork and rear spring shock) . The battery is integrated into the downtube, maintaining the bike’s balanced weight distribution and low center of gravity.

Charging Specifications

The battery requires a 54.6V charger with 2A output . Standard charging specifications:

Color LCD Display Integration

The battery communicates with the S17-1500W’s color LCD display, which shows:

• Battery power level
• Speed and mileage
• Gear position
• Wattage output 

You can also set wheel diameter, backlight, mileage units, and riding mode through the display .

Storage and Maintenance Best Practices

To maximize battery lifespan (800-1000 cycles), follow these best practices:

• Recharge regularly – Even when not in use, periodic charging extends battery life 
• Store at partial charge (40-60%) for long-term storage (over 30 days)
• Keep dry – Avoid exposing the battery to rain or moisture for prolonged periods
• Store indoors – Room temperature storage (10°C-25°C / 50°F-77°F) is ideal
• Avoid extreme temperatures – Never charge below 0°C (32°F) or above 45°C (113°F)

Weight and Physical Specifications

Expected Lifespan and Replacement Cost

A quality 48V 20Ah Samsung lithium-ion battery lasts for approximately 800-1000 charge cycles before significant capacity degradation occurs. Assuming you charge your e-bike every other day, this translates to roughly 4-5 years of useful life.

Replacement battery costs:

Common Reasons for Replacement

E-bike owners typically need a replacement battery when:

• Reduced range – The original battery no longer holds a full charge
• Age-related degradation – After 3-5 years of regular use
• Physical damage – To the casing or connector from drops or accidents
• BMS failure – The battery management system stops functioning
• Buying a used S17-1500W – Without an included battery
• Wanting a spare – For long-distance rides or extended range

Pros:

• Exact fit for AOSTIR S17-1500W model
• 48V 20Ah Samsung cells (960Wh capacity)
• 30-45 km range (pure power) / 80 km range (PAS)
• Integrated BMS with full protection suite
• Key lock Hailong mounting for security
• 4-6 hour charge time
• Compatible with 48V 30A controller 
• Color LCD display integration
• Premium Samsung cell reliability

Cons:

• Battery-specific to S17-1500W (not universal)
• Replacement cost $299-$299−499
• Heavy at 3.5-4.5 kg (8-10 lbs)
• 4-6 hour charge time (fast chargers not standard)

ELECTRIC BIKE BATTERY FOR S17-1500W: Technical Specifications

Electrical Specifications

Charging Specifications

Physical Specifications

Performance Specifications

Compatibility

Who Needs This Replacement Battery?

The ELECTRIC BIKE BATTERY FOR S17-1500W is perfect for:

• AOSTIR S17-1500W owners whose original battery no longer holds a charge
• Riders wanting a spare battery for extended range on long trips
• Used S17-1500W buyers who purchased a bike without a battery
• Those experiencing reduced range from age-related degradation
• Anyone needing a direct OEM replacement without wiring modifications

Why Choose the Correct S17-1500W Battery?

In conclusion, selecting the ELECTRIC BIKE BATTERY FOR S17-1500W ensures proper fit, electrical compatibility, and safe operation with your AOSTIRMOTOR S17-1500W electric bike. The 48V 20Ah Samsung battery is specifically designed to work with the bike’s 48V 30A controller and 1500W Boneng motor .

The integrated BMS protects against overcharge, over-discharge, and short circuits – essential safety features for high-power 1500W systems. The key lock Hailong mounting ensures your battery stays secure while riding rough terrain on the S17’s full-suspension frame and can be quickly removed for charging.

If your S17-1500W e-bike is experiencing reduced range or battery failure, this 48V 20Ah replacement battery restores your bike to original factory performance. Always verify your bike is the AOSTIRMOTOR S17-1500W model before purchasing.

For more options, browse our Collection of E-Bike Replacement Batteries or read our Battery Care Guide to maximize the life of your new battery.