Best E-Bike Batteries – What to Look Out for When Buying?

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Electric bike batteries are one of the most important components of any electric bike and surprisingly almost all first-time riders overlook it. If you are looking for the best e-bike battery to enjoy your ride powering through the neighborhood or out in the hills, you are at the right place.

In this guide, I’ve reviewed 4 of the most powerful and budget friendly battery packs for electric bikes that also give you more range on a single charge.

E-Bike Battery

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Whether you are an adrenaline junkie who likes to burst through on the road or a leisure rider who wants to enjoy a long and calm ride, one of these 4 electric bike battery packs might be a great option for you.

Top 4: Best E-Bike Batteries

#1. SHUNBIN 48V 20Ah E-bike Battery

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Performance is everything when it comes to buying the best e-bike batteries for riding in the hills. And the SHUNBIN 48V battery might be an interesting choice.

It has a large charge capacity that facilitates storing enough charge to travel 48 miles on a single charge. Fancy right? You don’t have to worry about standing still in the middle of nowhere waiting for your battery to charge magically.

The battery has good shock resistance which makes it an ideal choice for riders who like to cycle in rough terrains. The lightweight and small size aids in going uphill without putting a lot of stress on the battery.

To top it off, the battery has good charge retention and over-discharge resistance. This means your battery won’t lose significant chunks of battery when in storage, neither you have to worry about overcharging in case you forget your charger plugged in.

However, the battery might be difficult to fit on the frame due to the rectangular shape and you might need a shelf to attach it to the brackets.

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#2. Greenergia Best E-Bike Batteries

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Greenergia’s Best E-Bike Batteries is known to have high power density for a smaller package. With a 48V nominal voltage and a rated capacity of 20 Ah, the battery delivers more speed and power to help you overcome any steep slopes.

Unlike all other premium batteries, this e-bike battery has a life of 2000 cycles. A great investment for someone who rides regularly and requires a battery with a long lifespan.

Every battery is equipped with a protective plate that keeps the battery safe from over-charge, over-discharge, and short circuits. This can increase the life expectancy of the battery and significantly decrease the capacity drop when the battery ages.

However, the downside of this Best E-Bike Batterie is the weight. Weight component acts in opposite direction when going uphill and can decrease acceleration and speed. Exactly why if your neighborhood has steep slopes, you might need to take battery’s weight into account.

Moreover, the connector cables are short which might be a problem when adjusting it to the frame and motor of the e-bike.

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#3. Wallen Power 52V E-bike Battery

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High-grade cells ensure high capacity and low internal resistance, which means more charge storage and less discharge. Wallen Power e-bike battery offers A grade cells that have a capacity above 1100 mAh.

In terms of compatibility, the battery is fit for 1500W, 1200W, and even 1200W bike motors. This means the battery might be a good option for most e-bikes.

With a voltage of 52V, the battery provides greater efficiency, with the battery using less electricity to deliver greater power. For riders who like to roam around difficult terrains, this powerhouse might be your way to go.

Furthermore, all the batteries come with a 1-year warranty. With a cycle life of approximately 800-1000 charges and a 1-year warranty, this is by far the best budget-friendly battery you can get online. 

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#4. MXS E-bike battery 52V

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Lithium batteries can be dangerous when coming into contact with a heat source or even hot temperature, finding an ideal storing place is significant.

That said, MXS e-bike battery comes with a complete package. The battery is suitable for 1000W, 500W, and even 750W motor. So you don’t have to worry about compatibility when replacing your e-bike battery.

The wavy shape design allows the battery to be attached to the bike’s frame conveniently while maintaining the aesthetics of the bike. The exciting part is that the battery comes with a case to prevent water contact in case of unexpected rainfall.

The fancy feature is the protective plate that comes along with it. This prevents overcharging, over-discharge, and even short circuits, making sure that your battery life is unharmed.

The only catch to this battery is finding a storage place to keep it away from extreme temperature, protect it from water, and making sure you plug the right terminals.

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Here Are Some FAQ Most Riders Ask When Buying E-bike Batteries

Which battery is best for an Electric bike

There are few things to consider before deciding which battery might be a perfect option for you. How much range would the battery deliver, type of the battery, battery capacity, and its cost can be major factors to look into.

How many miles will I get from my battery?

This might be one of the most important factors when deciding on your e-bike battery.

How much mileage you can get on a single charge depends on different aspects, for instance how fast you ride, what kind of terrain you ride on, your weight, and the type of e-bike battery.

Most batteries provide information on how many miles a single recharge can travel. This is an estimate for ideal conditions and gives a rough idea of how long your battery charge would last.

Normally each mile uses 20 watt-hours. So a 480 watt-hour battery would give you around 24 miles. However, this can increase or decrease depending on the above-mentioned factors.

E-Bike Battery

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Electric bike battery types

What type of battery you select for your electric bike can be a tricky decision, considering there are several battery types with each of them having its pros and cons. I will mention some common to help you understand.

Lithium-ion might be the most common word you have heard when searching for the best e-bike battery. Basically, it is the battery that uses lithium in its composition.

Lithium Polymer is the most power-dense battery you can get. The power it delivers surpasses almost every other battery type and maybe a great choice for people who cycle on mountain tracks.

Lead-acid is another type of battery that is commonly used throughout the globe due to its high availability. Although they aren’t as power dense as Lithium Polymer due to their chemical composition.

Nickel Cadmium isn’t much suited for e-bikes because of the restriction of rapid discharge. The odd thing about this battery is that you have to fully charge before using it and discharge before storing it, which is completely strange when considering an e-bike application.

E-Bike Battery Capacity

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What capacity E-bike battery do you need?

Calculating battery capacity gives you a rough idea of how many miles you can travel before needing to get a recharge. Although it might not be the only factor affecting the longevity of your bike, it is a smart choice to determine what capacity you will need.

This is where you might need to do a little maths. Watt-hours are used to determine how much is your battery capacity. Multiplying your battery voltage by the amp hours gives you Watt-hours.

For this, you need to consider your riding terrains. Cycling over hilly terrains drains your battery faster than cycling on a flat surface. The same is applicable for high speed at the highest PAS (Pedal Assist System) level.

For a normal person looking to cycle through neighborhood streets, a 480 Watt-hour should be an ideal choice unless you plan on riding uphill.

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How much does it cost to replace an E-bike battery?

While electric bikes cut the cost of fuel, you need to replace e-bike batteries after a period due to the gradual decrease in capacity and efficiency.

And yes, e-bike batteries can cost anywhere between $300-$1000 depending on what they are to offer. A premium electric bike battery starts from $500 and can last more than 1000 recharge cycles. Interesting right?

Premium batteries offer 400+ watt-hour and deliver more range and power, exactly why they come with the additional cost. How much you need to spend to replace your battery depends on what kind and capacity you need. Typically though, expect to spend between $200 to $400.

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How long does an E-bike battery last?

The lifespan of a battery is not calculated by the number of years, rather by the number of recharge cycles. To put it simply: How many times you have to charge your battery from 0-100% before the battery efficiency starts to decrease, and until it completely diminishes.

You can expect your battery to last from 2 years to 4 years, provided it is maintained well. There are few ways you can increase your battery life: keep it in a dry place and avoid temperature fluctuations, don’t fully discharge your battery too often, and store your battery partially charged.

Typically an e-bike battery can undergo hundreds of charge cycles, even the most powerful batteries have 1000 recharge cycles. However, the exact amount can depend on the battery type and the manufacturers too.

E-Bike Battery Store

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How to store your E-bike battery?

Storing an e-bike battery can be a delicate task since your battery lifespan depends on it. While many people find it difficult to get a perfect place for their e-bike battery, here are few points to keep in mind before considering your storage place.

You need a dry place to store your battery. Any moisture or contact with water can ruin, even dilute chemical composition in your battery resulting in a drastic decrease in performance and efficiency.

Lithium Polymer batteries are most sensitive to high temperature and combustible materials. Almost all experts and manufacturers agree that a battery should be stored between 10-20 degrees celsius.

People often make the mistake of storing the battery empty. It is always better to store your battery at 40-70% of its full capacity to avoid irreversible damages. On other hand, leaving your battery to charge for long periods of time in the storage area can also negatively affect your battery life.

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How often should I charge my E-bike battery?

When and how often you charge your e-bike battery is directly related to your battery life and capacity.

There are two different ways people usually charge their e-bike batteries:

  • Charging after every ride to ensure that you are always prepared for your next cycling trip.
  • Charging at fixed battery intervals. Most experts recommend charging at 30% and 60% of its full capacity.

According to Battery University, partial charge and discharge are highly recommended since it reduces the stress on the battery. This prolongs the battery life and reduces the capacity drop as your battery ages.

Lithium batteries do not have memory therefore periodic full discharges and charges are not needed to prolong battery life. However, for other battery types, fully charging your battery every alternate week can ensure optimal working conditions.

Cycling between 25%-85% delivers a longer service life than fully charging to 100% and discharging to 50%. Keeping this in mind, you need to keep a track of your battery percentage before plugging in your charger.

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What happens when an e-bike battery dies?

If your battery dies in the middle of your journey, you will no longer have pedal assist. To simply put: the battery will not supply any energy to the motor to assist your pedaling.

However, you can still continue to ride with your power like a regular bike. But remember, e-bikes are generally heavier than regular bikes that means you will need to pedal harder, especially on inclines and rocky dirt roads.

A good way to avoid this is to keep an eye on your battery charge on your e-bike display. In case you are using your charge way too fast, it is a smart decision to shift to a lower assist to help conserve your charge.

Tip: In case your battery dies, removing the battery will make your e-bike a little lighter and easier to pedal.

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