Lithium E-Bike Battery: What to Look for

E-bikes have taken off as a mode of transportation. Whereas traditional bikes force you to jump straight into physical exercise for the entirety of a commute, e-bikes allow you to shift between getting your physical exercise, but also being able to drive around with assistance, or entirely with the power of the bike, for long distances. They’ve completely reinvented bike-based travel.

However, with everything e-bikes have changed for the positive, they’ve also made bikes a bit more complex.

Namely, this comes down to their power source: A lithium e-bike battery.

If you’re going to get an e-bike and enjoy both physical exercise and a more streamlined way to commute, you need to understand the battery powering it. So, we’ve put together this detailed primer to go over what to look for in a lithium e-bike battery and how to get the best one for your new cycling experience.

Let’s get started.

lithium e-bike battery

The Unique Requirements for a Lithium E-Bike Battery

When you think of a battery-powered bike, you probably look at things like your laptop, phone, or small household electronics where you simply put a battery in, and everything works just fine.

E-bike batteries are more complicated than that.

An e-bike has to be able to perform under a wide variety of conditions, and the battery used to power it needs to be able to handle all of those. If it doesn’t, it can easily turn into a danger for the rider, fail, or perform poorly and ruin your e-bike performance.

Here’s a breakdown of the different requirements every e-bike battery needs to meet in general.

1: High Stability

Anything can happen while you’re riding an e-bike. You can hit a large pothole and fall off, take a particularly bumpy road, and jostle all of its components, or you can just encounter a sudden stop that slams the battery forward.

There are restraints used to prevent the battery from bouncing around, but there’s still a chance of you impacting it.

A lithium e-bike battery must be highly stable and well-protected against impacts. If not, a sudden jolt can cause a fire that is dangerous and difficult to put out, or the battery can simply fail.

2: Capacity

E-bikes are efficient, but they still burn through a ton of power quickly if you’re relying entirely on their motor to power your ride. Some of them have hybrid systems where you can pedal with the assistance of the motor to make the ride easier without burning through your battery, and most of them can be powered 100% manually, but being able to zoom around for long distances is a major feature of an e-bike.

A battery with a high capacity is absolutely crucial to ensure you can travel 10, 15, 30, or even more miles without having to stop for a charge.

You’re mainly going to want to look at the watt-hour rating of whatever battery you’re buying. The higher it is, the better. Unfortunately, a lot of battery manufacturers cap their batteries off at a fairly moderate limit for a variety of reasons.

The standard watt-hour rating for an e-bike battery is about 300, but 1000 or higher is desirable.

3: Current Protection

Your lithium e-bike battery will be used outdoors, and while you can do your best to avoid certain hazards, you will eventually expose your bike to water. Whether that’s from a puddle getting splashed by a passing car or you simply get caught in the rain.

There are also constant vibrations that can cause connectors to wiggle loose or behave abnormally, and since your e-bike is controlled via a small onboard computer, that too can cause problems with your battery’s electrical discharge.

Even plugging your battery in to charge it can expose it to current problems.

All of those situations can cause short circuits, overcurrent issues, undercurrents, and other electrical problems.

If you choose a battery that is protected against those issues, you can rest assured that repairs are minimally required, and your battery is safe if anything goes wrong.

Good e-bikes have several measures in place to prevent those problems as much as possible, but it’s still helpful to know that your battery can handle a freak electrical problem.

4: Battery Indication

This is more of a minor feature, but it does help to keep you from dealing with inconvenient situations such as running out of battery mid-trip or leaving the house without enough battery to get home.

Good lithium e-bike batteries will have onboard indicators to show how much energy you have left before it’s time to charge. The more detailed this indicator is, the better. Preferably, a full digital display is better than the standard dot indicators with LEDs.

5: Charging Speed

You’re always going to have to deal with a fairly lengthy charging period when you’re dealing with high-capacity batteries, but you can’t afford to have a battery that takes hours to charge. Especially if you’re relying on your e-bike to commute to work, handle your grocery shopping, or anything else that you simply cannot afford to be delayed with.

A good lithium e-bike battery should go from dead to full within an hour or two. That’s still a timeframe that you need to plan for, but it is far more reasonable than the batteries that require 3, 4, or even 5-hour charges. That can easily cost you when you have to get to work or make a last-minute grocery trip, but your bike is still several hours away from being charged.

lithium e-bike battery

6: Weather Protection

Your life doesn’t stop because it’s cold outside or extremely hot. However, many lithium batteries do suffer performance issues in those conditions. That goes for your e-bike battery, as well.

If it’s too hot, you risk your battery overheating and even catching fire. If it’s too cold out, the battery’s performance will drop significantly, and it might not even be powerful enough to power the bike.

These are issues that impact the majority of batteries on the market, but a high-quality battery with built-in temperature protection prevents those issues.

This comes in two varieties.

First, the battery should be rated to perform well in high heat and chilling cold. This will help ensure that you can ride with ease even in relatively extreme temperatures and not worry about performance loss.

However, the second thing to look for is automatic shutoff technology if you do find yourself in a situation. That ensures that, even if you end up in a situation where the battery is exposed to temperatures it cannot safely handle, the battery will shut itself off to prevent failure.

This is key. Imagine you take your e-bike for a grocery shopping trip on a very hot day and underestimate the heat. Rather than dealing with a destroyed battery and possibly dangerous consequences, the battery just shuts off, and you have to pedal. You save money by not having to replace a battery or the bike, and you know that you’re safe.

7: Longevity

E-bikes aren’t cheap. Especially good ones that are going to perform well for years to come regardless of what you put them through. Unfortunately, batteries aren’t either.

If you use a cheaper battery that can only last about 2000 to 3000 cycles, you’re going to have to replace it as early as five years into the future. Faster if you’re relying on it every day.

An optimal battery can survive more than 5000 charging cycles without losing performance.

A lithium e-bike battery that meets that standard will easily last 10 years even if you rely on it, and it can last more than 15 years if you don’t need it for long trips every day.

Even if you pay slightly more for a battery that meets this standard, you’ll still save a lot of money by not having to replace the battery nearly as often.

The Best Lithium E-Bike Battery

Now that we’ve gone over what you need to have a good bike battery and why each factor is important, it’s time to talk about the battery that actually meets all of those standards without cutting corners or forcing you to sacrifice much-needed features.

MANLY Battery is a primary battery supplier for the entire world. Over 3000 lithium batteries are produced by MANLY every day for clients around the world in a wide variety of industries and manufacturing needs. You’ve probably had a MANLY battery if you have bought a good electronic lately.

Well, MANLY can actually be your go-to supplier for high-end e-bike batteries at fair prices, too.

MANLY doesn’t just provide the benefits we’ve talked about in this guide, but you also get top-notch customer service, a rock-solid guarantee, and a massive variety of batteries to choose from whether you’re replacing the battery on a stock e-bike or putting together your own custom project.

What’s more, is that MANLY can make custom batteries that meet your desired specs and form factor. So, if you require something truly unique, you can order that battery from MANLY with no hassle.

For all your lithium e-bike battery needs, contact MANLY, today.

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