How to choose the right e-bike battery for your business?

Stuck with a battery that dies too soon? It’s frustrating when your ride ends early. A bigger battery seems like the easy answer, but is it really that simple?

Yes, you can absolutely put a bigger battery on an electric bike¹. As an OEM/ODM manufacturer, we frequently customize battery capacity² based on the bike's intended use, from standard city e-bikes to high-demand delivery models and unique client-specific designs.

I get this question a lot from clients. They want more range, more power, and more freedom. It's a great question because the battery is the heart of any e-bike³. The answer isn't just a simple yes or no. It depends on what you want to achieve with your bike. For over 20 years, my factory has been helping brands figure out the perfect battery setup for their specific needs. It's a balance of performance, weight, and cost⁴. Let's explore how we make it happen and what options you have.

What's the right battery size for most e-bikes?

Tired of seeing confusing battery specs? Choosing the wrong one means you either overpay for range you don't need or get left stranded. Let's find the sweet spot for you.

The most common and cost-effective battery configurations⁵ we use are 10-13Ah for city e-bikes, 13Ah for mountain e-bikes, and around 20Ah for fat tire bikes. These sizes offer the best balance of range, weight, and price for their specific uses.

When we develop an e-bike line with a client, the first thing we talk about is the rider. Who are they and where will they be riding? A city commuter has very different needs from an off-road adventurer. Based on years of testing and feedback, we've found some standard configurations that work great for most situations. For a city e-bike, a 10Ah or 13Ah battery is perfect. It keeps the bike lightweight for carrying up stairs and provides more than enough range for daily errands. For mountain e-bikes, we usually start with 13Ah to give riders extra power for climbing hills. Fat tire bikes need more juice to move those big tires, so we typically equip them with a 20Ah battery. These are our go-to recommendations because they deliver reliable performance without making the bike too heavy or expensive.

E-Bike Type and Common Battery Specs

How can you get extreme range for delivery e-bikes?

Worried your delivery e-bike won't last a full shift? Running out of power means lost time and money. There has to be a better way to ensure all-day performance.

For delivery e-bikes that require maximum range, we often install a dual-battery system⁶. Typically, this involves fitting two 20Ah batteries—one on the downtube and another behind the seat or under the rear rack—to double the operational range.

One of our biggest client segments is businesses that need commercial-grade delivery e-bikes⁷. For them, range is everything. A bike that can't run for a full 8-10 hour shift is not an option. So, how do we solve this? The most effective solution we've developed is a dual-battery setup. It's a powerful and practical approach. We integrate a primary battery into the frame's downtube, just like on a standard e-bike. Then, we add a second battery, usually of the same capacity, onto a reinforced rear rack or behind the seat post. This doubles the bike's range instantly. We use two 20Ah batteries for a total of 40Ah, which is more than enough for a long day of deliveries. This setup not only provides the needed range but also helps balance the bike's weight, especially when it's loaded with cargo. It’s a custom solution we’ve perfected to meet the tough demands of the logistics industry.

Single vs. Dual Battery for Commercial Use

Can you really get a custom, super-sized battery?

Have a unique vision for an e-bike but think the battery technology is a limitation? It’s frustrating when standard parts don’t match your big idea. What if there were no limits?

Yes, we can engineer and manufacture completely custom, super-high-capacity batteries. We work with clients to design unique solutions that fit their specific frame and range requirements, no matter how extreme the concept is.

I love it when a client comes to us with a challenge. It pushes my team to innovate. I remember one project with a client from Israel. They wanted an e-bike with an absolutely massive battery. They weren't interested in a standard setup; they had a vision for a bike that could go for incredible distances on a single charge. Their idea was to have a huge battery positioned right under the seat. When they described it, they said, "Imagine a battery that is almost as tall as the rider's seat." My first thought was, "Wow, that's ambitious." But that's what we do. We specialize in turning ambitious ideas into reality⁸. Our engineers got to work, designing a custom frame to accommodate this monster battery. We had to consider weight distribution, structural integrity, and rider ergonomics. The final product was incredible—a bike with a battery so large it became a defining feature of its design. This project proves that if you can dream it, we can build it. We have the in-house capabilities to design and manufacture batteries and frames that go far beyond the ordinary.

Conclusion

So, yes, you can put a bigger battery on an e-bike. From standard upgrades to extreme custom builds, we have the expertise to create the perfect power solution⁹ for your needs.