How to choose electric bicycle battery
2020-12-31

How much do you know about electric bicycle batteries? If your knowledge of batteries is superficial, it means you don't know much about electric bikes. If you compare the current to the blood of an e-bike, the battery is its heart. The quality of the battery will have a significant impact on the bike's speed, battery life and safety, which will directly affect your cycling experience. There are two main types of e-bikes on the market today, lithium batteries and lead-acid batteries. Want to know the difference between them? Now it's time to follow us and learn something new!

How to choose electric bicycle battery


 Li-ion electric bicycle battery



Over time, lithium-ion batteries have proven to be the most responsive to public demand among many battery types, according to market research. Today, it has a high market share and attracts a large audience. Lithium-ion batteries are used in a variety of electronic products due to their many irreplaceable advantages, such as electric bicycles or motorcycles, go-kart cars and laptops.

Typically, lithium-ion batteries are small and can be made into a variety of shapes, which makes them widely used in different places, such as triangular areas on bicycle frames. Second, lithium-ion batteries typically have a longer cycle life than conventional ones, and their charging cycles can often reach a staggering 1,000 times or more. So, whether you use them frequently or leave them idle, they won't age or die in the short term. But that doesn't mean we recommend doing so to extend battery life, we suggest you follow the tips on how to maximize the battery life of an e-bike. In addition to portability and long battery life, lithium batteries also maintain excellent performance. They can be charged quickly, maximize battery efficiency, and provide higher performance at lower power. All these advantages make lithium-ion batteries stand out in the market and set off the current e-bike craze.

Of course, there are two sides to everything, and lithium-ion batteries have their drawbacks. Due to their excellent performance and superb technology, lithium batteries usually require higher production technology and complex production process, resulting in higher prices. But given their unparalleled performance and longer life, we still recommend buying e-bikes with lithium-ion batteries, especially from well-known brands like Samsung. The AOSTIRMOTOR electric bicycle battery made by the famous Brand Samsung will fully meet your needs.

This is just an overview of lithium-ion batteries. There are many subtypes of lithium-ion batteries, and if you want to learn more about them, please read on.

How to choose electric bicycle battery


Lithium ion Polymer (LiPo) electric bicycle battery

The lithium-ion polymer battery is the choice of most e-bike manufacturers and is widely used in e-bikes, with a market share of up to 90%. LiPo batteries are less expensive than the other lithium batteries we will discuss, but that doesn't mean they have less performance. LiPo batteries use solid, colloidal polymers or organic electrolytes. Because lithium polymers have no excess liquid electrolytes, they are more reliable and stable than other batteries. While ensuring high stability, lithium-polymer batteries have many other advantages, such as high capacity and fast charging. They can provide higher power in a short period of time, which allows the e-bikes to get power support at startup. Moreover, the cells can be moulded into different shapes suitable for the product.

Lithium cobalt oxide (LCO) electric bicycle battery

The LCO battery has a relatively stable structure and excellent comprehensive performance, but its most famous advantage is its high energy density. It can contain or release a lot of energy in a small volume, so it can be used in some small electronic devices, such as cell phones, laptops and MP3/4. However, its safety performance is not as good as other types of lithium batteries, but this is not something you should worry about because responsible manufacturers know what to do to ensure the safety of their customers. Thus, the main reason lithium-cobalt oxide batteries have not been as widely used as LiPo batteries is not their safety but their cost. Cobalt is a relatively scarce strategic metal, so LCO batteries are often expensive to manufacture. There are also some technical difficulties in applying them to power batteries. These various reasons limit the development of LCO batteries, so manufacturers sometimes use lithium-manganese batteries to partially or completely replace LCO batteries. Perhaps in the future, these difficulties will be solved by technological advances, but for now at least, lithium-polymer batteries are the leader in power batteries.


Lithium magnesium (LiMg2O4) electric bicycle battery

Lithium manganate batteries are those that use LiMn2O4 as the positive electrode. This is the latest lithium battery, due to its low price, good safety performance, pollution-free characteristics, has been highly valued by many scholars and researchers at home and abroad. Currently, LiMg2O4 batteries are commonly used in the manufacture of mobile phones, laptops and other portable electronic devices. Typically, this is a promising battery, and the Nissan Leaf hybrid uses similar technology to make the battery. However, the material itself is not very stable and tends to decompose to produce gases, so it is often used in combination with other materials to improve stability and reduce battery costs.

Unlike portable electronic products such as mobile phones, e-bikes require a certain amount of power support. Therefore, as far as the current battery market is concerned, lithium ion battery is undoubtedly the most suitable partner for electric bicycles. All AOSTIRMOTOR's fat-tire e-bikes use Samsung lithium-ion batteries, which are safe and stable, have good performance and long battery life. It is undoubtedly the most ideal choice to buy an electric bicycle.

Lead-acid electric bicycle Battery (SLA)

The original electric bicycle battery, the lead-acid battery, dates back to the mid-19th century. It has experienced nearly 160 years of development, and has made great progress in product types and varieties as well as electrical performance. Nowadays, lead-acid batteries play an important role in various economic fields such as transportation, communication, electricity, military, even navigation and aviation. Their most obvious advantages are low price and high stability. Of course, there are some downsides. SLA batteries are usually bulky, about three times the size of lithium-ion batteries, but their bulky size doesn't deliver enough power. Compared with lithium batteries, the SLA battery weighs three times as much and has only half the capacity. In addition, the cycle life is also one of the key issues. After 150 cycles, you'll feel a decrease in battery life. All in all, in the e-bike industry, these fatal shortcomings make it possible to replace it with lithium batteries. This is why Himiway chose Samsung as the supplier of lithium batteries.

Nickel cadmium (NiCd) electric bicycle batteries

The NiCd battery is the same size as the SLA battery, but has a larger battery capacity than the SLA (still no better than a lithium battery), and has a longer battery life. On both counts, it may be a better choice than an SLA. But the most fatal flaw of NiCd is that it produces a severe "memory effect". The memory effect means that some bubbles form on the panels during charging and discharging (discharging > to charge). The buildup of bubbles reduces the area of the panel, which affects battery capacity. In addition, cadmium is a toxic pollutant that is difficult to recover. Nickel-cadmium batteries are not an ideal type of electric bicycle for environmental protection.
How to choose electric bicycle battery



NiMh electric bicycle battery

With the rapid decrease of earth's resources in the process of large-scale development and utilization, scientists have to find new energy sources that can replace fossil energy for human use, and hydrogen energy has attracted people's attention. Nickel metal hydride batteries as an important direction of hydrogen applications have also been explored. Nickel-metal hydride batteries have higher efficiency and safety performance than SLA and NiCd, and the capacity is very attractive. From these points of view, this could be a good e-bike device. What is disappointing is its high cost and medium battery life. Ni-mh batteries require precious metals as catalysts, which makes them unaffordable. In addition, its battery life has barely improved compared to NiCd, so few e-bikes on the market use NiMh batteries.

As far as we are concerned, it is inevitable that lithium-ion batteries have gained market share because of their long battery life, wide range, portability and other top performance. Almost 90% of e-bike makers opt for lithium-ion batteries. However, we still suggest that customers should consider which electric bicycles to buy according to their actual needs, budgets and so on.

Pay attention to. The AOSTIRMOTOR e-bike comes with a two-year warranty on its lithium-ion battery. Please get it now!