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Unlock the Power: Top Tips for Choosing and Maintaining Your E-Bike Battery - Handlebar Jack

Unlock the Power: Top Tips for Choosing and Maintaining Your E-Bike Battery


Hello everyone! It's Andy from Handlebar Jack.

Today, we're going to discuss e-bike batteries, their different voltage ratings, and how they affect your e-bike's performance. We'll also touch upon battery controllers and their role in the e-bike's electrical system. A separate video will be dedicated to e-bike motors.

Different Voltage Ratings in E-Bike Batteries:

E-bike batteries come with different voltage ratings such as 36V, 48V, 52V, and even 72V. Here's a brief rundown of what these voltage ratings mean for your e-bike's performance:

  1. 36V: Common in entry-level and mid-range e-bikes, offering decent speed and range.
  2. 48V: A step up from 36V, used in higher-end e-bikes with more power and speed.
  3. 52V: Provides even more power and speed.
  4. 72V: Found in the DIY sector of e-bike building, offering extreme power and speed. However, they require a compatible motor and controller to handle the extra power.

Types and Sizes of E-Bike Batteries:

E-bike batteries come in various shapes and sizes, from small and compact to large and bulky. In this guide, we will help you understand the components of e-bike batteries and how they can affect your choice of e-bike.

Components of an E-Bike Battery:

A typical e-bike battery consists of single battery cells (usually 18650 lithium-ion batteries), a circuit board called a battery management system (BMS), and other electrical components. Name-brand cells, such as Panasonic, LG, Samsung, and Sony, are generally more reliable than generic cells due to their higher quality control procedures.

Understanding Amps, Volts, and Watts:

To make an informed choice when purchasing an e-bike, you need to understand amps (amp-hours), volts, and their relationship with your e-bike battery. Amp-hours refer to the amount of energy the battery can deliver over time, while voltage determines the power delivered to the motor.

  • Amp-hours: A higher amp-hour rating allows the bike to go further on a single charge.
  • Voltage: A higher voltage battery provides more power to the motor, resulting in a faster and more responsive ride.

Amps multiplied by volts equals watts, which powers your e-bike motor.

E-Bike Battery Management System (BMS) and Controller:

A BMS monitors the charge voltage and temperature of the battery, while the controller receives information from the LCD panel on your handlebars and your pedals or throttle. The controller then sends power from the battery to the motor. These components are essential when building an e-bike from scratch, but not typically a concern when purchasing a pre-built e-bike.

Battery Care and Storage:

To prolong the life of your e-bike battery:

  1. Avoid draining the battery completely or below 10%.
  2. Remove the battery from the bike and store it in a cool, dry place when not in use.
  3. Keep the battery charged between 20-80% capacity.
  4. Charge the battery every few months during extended periods of storage.

Understanding amp-hours and voltage in e-bike batteries is crucial when making a purchase. Higher amp-hours mean longer battery life, while higher voltage results in a more powerful and responsive ride. Test out different e-bikes with varying battery voltages to find the best fit for you. With this knowledge, you can make a more informed decision when buying your e-bike. Leave your questions or ideas for future videos in the comments below, and we'll see you next time!


About Andy Wilkoff

Dad, Entrepreneur, Avid Commuter Cyclist, VFX Supervisor, and Garage Innovator

Andy is a devoted father, entrepreneur, and avid commuter cyclist who has made a name for himself in the world of visual effects as a VFX Supervisor. Hailing from Los Angeles, Andy is known for his dedication to his family, work, and personal interests, successfully juggling various roles in his life.

As a passionate cyclist, Andy often rode his electric bike through the bustling streets of Los Angeles to work several times a week. Not only did this routine allow him to incorporate exercise into his daily life, but it also provided him with the opportunity to reduce his carbon footprint and enjoy the city's vibrant atmosphere.

Andy's enthusiasm for cycling and tinkering led him to become a garage innovator. In a moment of necessity, he created Handlebar Jack, a tool designed to elevate the handlebars when working on his electric bike. He realized the importance of having such a device to keep his bike safely elevated without damaging the control screen or throttle, whether he was at home or on the road.

The creation of Handlebar Jack showcases Andy's resourcefulness and inventive nature. Fueled by his passion for cycling, he identified a problem and engineered a solution that not only improved his own biking experience but also has the potential to benefit other cyclists facing similar challenges.

Andy is a multi-talented individual who has made significant strides in both his professional and personal life. As a dedicated father, entrepreneur, VFX Supervisor, and avid cyclist, he continues to inspire others with his creativity, hard work, and commitment to his passions.

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1 comment

  • It was a helpful tip when you advised us to keep the battery charged between 20-80% capacity if we want to prolong its lifespan. Speaking of batteries, it seems like my brother’s motorcycle battery charger got damaged recently so he’s been looking for a new one to replace it. I’ll keep this in mind while I help him look for motorcycle battery chargers for sale soon.

    Elina Brooks

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