How to Choose the Right Lithium Polymer Battery for Your Device

In the design of modern electronic products, batteries not only serve as the source of energy, but also are a key factor influencing the overall 

performance and user experience of the device. Polymer batteries (Lithium Polymer Battery, abbreviated as LiPo battery) have gradually 

replaced some traditional cylindrical batteries due to their lightweight design, high energy density and safety performance, and have become 

the mainstream choice in fields such as smart devices, wearable products, medical instruments, Internet of Things devices, and drones. 

However, when faced with numerous models and specifications on the market, how to select a truly suitable polymer battery for your device 

has always been a matter of expertise.

When choosing a polymer battery, the first thing to consider is the energy demand of the device. The battery capacity directly determines the 

duration of use. If a device requires long standby time or continuous power output, then the capacity must be sufficient to support the entire 

operation of the device. However, the larger the capacity, the corresponding volume and weight of the battery will increase. Therefore, when 

making a choice, it is necessary to combine product design to find a balance between performance and portability. For example, smart 

wristbands and Bluetooth headphones usually require lightweight and compact batteries, while drones and tablets place greater emphasis 

on battery endurance, with a much higher demand for capacity than for weight.

Voltage is also a key factor that cannot be ignored during the selection process. Most small electronic devices use 3.7V single-cell batteries. 

However, for some products that require higher power, multiple cells are often connected in series or parallel to achieve voltage and capacity 

combinations of 7.4V, 11.1V, or even higher. In this process, proper battery design and matching not only affect the performance stability of the 

equipment but also directly relate to safety. If the battery voltage does not match the circuit system, it may cause a decrease in efficiency in the 

mild cases and even overheating or damage in the severe cases.

In terms of size, the flexibility advantage of polymer batteries is particularly prominent. Compared with traditional cells, polymer batteries can be 

customized according to the module design. The thickness, width, and length can all be adjusted within a certain range. This is why more and 

more manufacturers choose polymer batteries. For engineers, when making a choice, not only the capacity and voltage parameters need to be 

checked, but also it is necessary to ensure that the battery shape perfectly fits the internal space of the product.

Furthermore, discharge rate is also an indicator that cannot be ignored. For low-power devices such as Bluetooth headphones or remote 

controls, regular discharge rate batteries can meet the requirements. However, if it is a scenario where a large current output is needed 

instantly, such as for drones or power tools, a high discharge rate battery must be selected to ensure that the equipment can still operate 

stably under high load.

Safety and certification are another key aspect in the procurement process. As batteries are chemical energy sources, if they have not 

undergone rigorous safety tests, there is a high risk of bulging, leakage, or even combustion. Especially when exporting to Europe, some Asian 

countries, or other regions, customers often require that the batteries comply with international certifications such as UL1642, UL2054, UN38.3, 

CE, CB, PSE, and KC. Only batteries that meet these standards can enter the market smoothly and ensure the safety of end-users. A&S Power 

has always prioritized safety as its primary criterion. All polymer batteries have undergone strict international certifications to ensure that 

customers' sales in the global market are compliant and reassuring. 

Apart from the parameters themselves, the selection of the supplier also determines the feasibility and stability of the final battery solution. An 

excellent battery supplier not only provides high-quality products but also offers comprehensive technical support and after-sales services 

throughout the process of pre-selection, mid-term prototyping, and post-batch supply. A&S Power has over 15 years of experience in lithium 

battery research and production, and can tailor appropriate polymer battery solutions according to the different needs of customers, ranging 

from small-capacity wearable batteries to large-capacity energy storage battery modules, with abundant project cases as support.

In today's highly competitive market, a suitable polymer battery not only affects the performance of the equipment, but also relates to the brand 

reputation and user experience. Factors such as capacity, voltage, size, discharge rate, safety certification and supplier strength are all 

indispensable. Choosing A&S Power means choosing stable and reliable energy support, as well as long-term support from a professional team. 

Whether it is small-scale demands from start-up enterprises or large-scale supply from international major customers, A&S Power can provide 

flexible, compliant and high-performance polymer battery solutions.

Therefore, when you are considering "how to select the appropriate polymer battery for your device", you might start by focusing on product 

requirements, performance indicators, and safety certifications. At the same time, establish a partnership with a reliable supplier. A&S Power 

will always provide professional and quality support, becoming the most solid driving force behind your innovative products.