E-Bike Battery Solutions Guide – Booant

E-Bike Battery Solutions Guide

Biking is a great way to get around. More and more people are using electric bikes for transportation, exercise, and racing. If you are an e-bike riding enthusiast, you know that having a good battery is essential. An e-bike battery can make the difference between having good quality and bad quality.


Types of e-Bike Battery

There are two main types of e-bike batteries: lead-acid batteries, and lithium-ion batteries (Li-ion). Each type has its unique benefits and drawbacks.

Lead-acid batteries are the most common type of battery. They are affordable and durable, but they are also heavy and have a shorter battery life span than other types of batteries.

The lithium-ion battery is the lightest and most efficient type of battery. It also has a long lifespan. Although it’s more expensive, it has been the most popular battery solution for E-bike.


Features of e-Bike Battery

e-bike batteries are typically much more powerful than other types of bicycle batteries. They can deliver more power for longer periods of time, making them perfect for use on road bikes.

Other e-bike batteries may not be able to provide enough power to the motor, which can cause it to slow down or stop working completely. Road bike batteries are also designed to be lighter, which makes them easier to carry around. This is important when you’re cycling long distances and need to keep your battery as light as possible.


PACK Structure & Parameters

When choosing a battery for your road bike, there are many things to consider. The most important factors are:

  • Structure
  • Voltage
  • Capacity
  • Dimensions

Common e-bike battery styles include in-tube batteries, down-tube batteries, and rear rack batteries. A lot of batteries for road e-bikes are in-tube batteries. The reason is cylindrical batteries are more compact and lightweight. And putting batteries in the tube can help save plenty of space which is very important for a racer.

The voltage of a battery determines how much power it can output. Most road bikes require a 36-volt or 48-volt battery. Higher voltages provide more power, but also require correspondingly larger batteries that take up more space and weigh more.

The battery capacity determines how long it will last before needing to be recharged. Batteries with higher capacities last longer between charges. However, they also tend to be heavier and cost more than batteries with lower capacities. So the designer must balance between capacity, cost, and weight.

There are internal dimensions and external dimensions that need to be considered for a road bike battery pack. Internal dimensions are the size of the battery itself, while external dimensions include everything else: the case, mounting hardware, and any extra space needed for wiring. Be sure to select a battery that will fit inside your frame!


Cell Type

Cell type is an important consideration when selecting a battery for your road bike. Each type of cell has its own strengths and weaknesses.

There are three types of battery cells: cylindrical, prismatic, and pouch cells.

18650 cells are the most popular type of cylindrical cell. They have been used in laptop batteries and other electronics for many years. They are affordable and have a good balance of performance and lifespan.

21700 cells are a newer cell that is becoming more popular in E-bikes because they offer more capacity than 18650 cells.

Which type of cell you choose will depend on your needs and budget.


BMS for e-Bike Battery

A battery management system, or BMS, is a device used to protect and manage a lithium-ion battery. It does this by regulating the voltage and current going in and out of the battery, as well as monitoring the temperature and state of charge. This helps ensure that the battery remains healthy and safe for use.

The core functions of BMS include:


  • Cells voltage sampling
  • Cells temperature sampling
  • Pack’s total voltage sampling etc

Core algorithm

  • SOC (battery state)
  • SOH (life state)
  • SOP (power state)
  • Battery equalization etc

Application function

  • Charging & discharging management
  • Battery system thermal management
  • Battery fault diagnosis system
  • Power management system,
  • Bluetooth/CAN BUS communication interface etc.


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BOOANT is a professional lithium battery power solution company founded in Shenzhen. It is famous for providing high-quality products. Our lithium batteries for electric bikes and motorcycles can meet your needs. 

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