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The Hailong 48V E-Bike Battery: A Review

Electric bikes, or e-bikes, have become increasingly popular in recent years as a means of transportation and recreation. One key component of an e-bike is the battery, which provides the power needed to propel the bike forward. The Hailong 48V E-Bike Battery is a popular choice among e-bike enthusiasts, known for its reliability and performance. In this review, we will take a closer look at the Hailong 48V E-Bike Battery and explore its features and benefits.

Product Description

The Hailong 48V E-Bike Battery is a lithium-ion battery with a capacity of 20Ah/15Ah. It is equipped with a 35A BMS (Battery Management System) and comes with a 3A charger. This battery is compatible with 250W, 500W, 750W, and 1000W e-bike motors, including Bafang and Voilamart.

How to choose the battery style that best suits you?

The voltage of the battery must match the voltage of the motor. Additionally, the maximum power and current of the battery should equal or exceed the power and current requirements of the motor. For example, a 48V 1000W 20Ah battery can be used for a 48V 500W 15Ah motor, but not vice versa. It is important to ensure that there is enough space on your e-bike to accommodate the battery you choose.

Having a Robust Battery Management System

The Hailong 48V E-Bike Battery is equipped with a sophisticated BMS that offers a range of protective features:

  • Balance function
  • Overcharge protection
  • Overcurrent protection
  • Short circuit protection
  • Overvoltage protection
  • Temperature protection
  • Over-discharge protection
  • Reverse charging protection

Notes and Package Contains

The Hailong 48V E-Bike Battery comes with a set of accessories to ensure easy installation and use:

  • Battery fixing plate and screw set
  • Key
  • Charger (US standard)
  • Water-proof bag
  • Instruction manual

It is important to fully charge the battery before the first use and store it in a cool, dry place. Avoid separating, squeezing, or impacting the battery, and keep it away from water, fire, and children.


The Hailong 48V E-Bike Battery is a reliable and high-performance option for e-bike enthusiasts. With its capacity of 20Ah/15Ah, compatibility with various motor types, and advanced BMS, this battery offers a safe and efficient power source for your e-bike. Whether you are a beginner or experienced e-bike rider, the Hailong 48V E-Bike Battery is a solid choice for enhancing your riding experience.

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