72v electric bicycle battery 48v 35ah 52v30ah fuel tank ebike battery 72 volt 20ah 21700 for 750w 1000w 2000w 3000w motor

Fuel Tank Style High-Performance E-Bike Battery

This "fuel tank" style battery is a powerful and high-capacity solution for serious e-bike riders, custom builds, and high-wattage electric bicycles. Its unique design, which mounts to the front frame triangle, mimics a motorcycle's fuel tank, providing a rugged, aggressive look while offering a massive energy reserve for extended, high-speed rides.

Specifications:

• Voltage: Available in a range of high voltages to power the most demanding motors:

  • 48V: A powerful choice for motors up to 1500W, offering excellent torque and speed.

  • 52V: A popular upgrade that provides an increase in performance and efficiency for motors up to 2000W.

  • 72V: The ultimate in high-voltage e-bike power, designed for extreme performance on motors up to 3000W and beyond, often used for high-speed e-motorcycles or off-road rigs.

• Capacity: The "fuel tank" style case allows for very high capacities:

  • 48V: Up to 35Ah for an incredible range of over 1600Wh ($48V\times 35Ah=1680Wh$).

  • 52V: Up to 30Ah ($52V\times 30Ah=1560Wh$), providing a massive energy reserve.

  • 72V: Up to 20Ah ($72V\times 20Ah=1440Wh$), a huge capacity for a high-voltage system.

• Battery Cells: These high-capacity batteries are built using high-energy-density 21700 lithium-ion cells (such as Samsung 50S, Molicel P42A, or other premium brands). Using 21700 cells allows for a more compact and lighter pack for a given capacity compared to older 18650 cells.

• Motor Compatibility: A key feature of these batteries is their high-discharge current, which is essential for powerful motors. They are designed to safely and efficiently power:

  • 750W / 1000W motors: A perfect match for a 48V or 52V battery, providing massive range and a significant performance margin.

  • 2000W / 3000W motors: Best paired with a 52V or 72V battery, which provides the necessary high-ampere output for maximum torque and speed.

Features and Design:

• Rugged "Fuel Tank" Case: The robust ABS plastic or aluminum alloy case provides superior protection for the high-density cells, making the battery shock-resistant and weatherproof (often with an IP53 or higher waterproof rating).

• High-Powered BMS: An advanced Battery Management System (BMS) is a non-negotiable feature. It's a high-amperage unit (e.g., 50A continuous for a 48V 35Ah pack, 60A for a 72V 20Ah pack) that is crucial for safely delivering power to high-wattage motors. It protects against:

  • Over-charging and over-discharging

  • Over-current and short circuits

  • Temperature extremes

• Secure Mounting: The battery mounts to the bike's frame with a secure, lockable base plate, which prevents theft and ensures a stable ride.

• Extended Range: The extremely high Amp-hour (Ah) ratings of these batteries eliminate range anxiety. Depending on the capacity and riding conditions, a single charge can provide a range of 40 to over 80 miles.

• Convenience Features: Many models include a number of helpful features, such as:

  • LED Power Indicator: Displays the remaining charge level at a glance.

  • Key Lock: Securely locks the battery to the frame.

  • USB Port: Allows you to charge your phone or other electronics on the go.

• Optimal for Performance Builds: This style of battery is the standard for high-performance e-bike conversions, enabling riders to unlock the full potential of powerful hub motors or mid-drive systems.