Which battery do I need for my electric bike?

Written by: Jon Duffy



Time to read 3 min

Looking to replace the battery on your e-bike? Maybe you're asking yourself: Which battery do I need for my electric bike? If you’re concerned about which replacement to pick up, Maplin are here to help you find the ideal battery to keep yourself on the move. You'll be back on your bike in no time thanks to our handy guide and range of replacement e-bike batteries.

E-bike batteries for electric bikes at Maplin

Which battery do I need for my electric bike?

In the realm of eco-friendly transportation, electric bikes (e-bikes) have emerged as game-changers, offering a convenient and sustainable alternative to traditional bicycles and fossil fuel-powered vehicles. E-bikes offer a range of benefits that make them an attractive choice for commuters, enthusiasts, and eco-conscious individuals alike. First and foremost, e-bikes provide an environmentally friendly alternative to traditional vehicles, emitting zero emissions and reducing carbon footprint.

They also promote active transportation, encouraging individuals to incorporate physical activity into their daily routines while commuting or running errands. E-bikes offer convenience and flexibility, allowing riders to navigate through traffic, access restricted areas, and cover longer distances with ease. Additionally, e-bikes are cost-effective, requiring less maintenance and fuel than traditional vehicles, and often qualifying for incentives and subsidies. With their versatility, efficiency, and sustainability, e-bikes are transforming the way we travel and shaping the future of urban mobility.

At the heart of every e-bike lies its power source: the battery. Electric bike batteries play a crucial role in determining the performance, range, and overall riding experience.

Lithium-ion or Lead Acid?

Lithium-ion batteries are generally considered the superior choice when it comes to e-bikes. Though they tend to be more expensive than lead acid batteries, they benefit from being far lighter which is an important factor when you’ll be riding around with it!

Lithium-ion (Li-ion) batteries offer superior performance and efficiency, providing ample power for extended rides without adding unnecessary bulk or weight to the bike.


Make sure you check the unique input volt range of your electric bike as every model could have different requirements. You don’t want to choose a battery with more or less volts than the recommended range as you could damage your e-bike or even risk a fire.

Higher voltage batteries provide more power and torque, resulting in faster acceleration and better performance on steep hills. Similarly, batteries with higher capacity offer longer range and extended riding time between charges. When choosing an electric bike battery, it's essential to consider your riding needs and preferences, balancing power, range, and weight to find the optimal solution for your lifestyle.


If volts are a measure of how fast your e-bike can go, ampheres determine how fast the battery can deliver this speed. Most motor systems can only pull as much current as they need, so opting for a battery with a high current output will not damage your electric bike’s motor.

So which battery should I get?

Ultimately, the most important step is to check the user manual for your e-bike to make sure that the battery you’re looking at will be compatible. Make sure to also check both the voltage and ampheres as these are essential to operating your electric bike safely.

Electric bike batteries are the powerhouse behind every e-bike, providing the energy and performance needed to propel riders forward with speed and efficiency. With advancements in battery technology and manufacturing, today's e-bike batteries offer unparalleled performance, range, and reliability, empowering riders to explore new horizons and embrace sustainable transportation solutions. Whether commuting to work, running errands, or embarking on epic adventures, electric bike batteries provide the power and freedom to ride farther, faster, and greener than ever before.

Ready to start shopping for a replacement e-bike battery? Click here to start exploring our Electric Bike Batteries now. We also offer a wide range of other Specialist Batteries, or if you need to restock, you can explore our full range of Batteries.

Battery Type: Lithium-ion batteries are preferred for their light weight and efficiency.

Voltage & Ampheres: Check electric bike's voltage and amphere range to avoid damage or fire risks. Higher voltage batteries offer better performance.

Choosing the Right Battery: Refer to the user manual for compatibility. Ensure voltage and amperes match the bike's requirements for safe operation.

About the author

Jon Duffy is a Digital Merchandiser at Maplin.

An avid gamer from a young age, Jon has dabbled in gaming journalism and dedicates much of his spare time to this hobby. He also has an interest in music, playing bass guitar in a rock covers band.

Having previously worked as a copywriter with another electronics retailer, he was eager to join Maplin with their new online venture. In addition to writing blogs, Jon also works on many of the website's landing pages and adding new tech to the range.