Brand scramble to adopt, steel shell buckle type battery into TWS headset standard

TWS headset is a very popular headset products in recent years, its open cover that is connected, out that is used, the characteristics of convenient storage, get rid of the wired headset difficult to store, the line is easy to tangle the shackles, by the majority of users welcome, in a large proportion to replace the traditional wired headset. The reason why TWS headphones are able to achieve such convenient use, headset battery is one of the most important part.

Apple Airpods series is the current TWS headset market sales bear, its both the appearance of the design and structure configuration are leading the development of the market. In the direction of the battery, Apple AirPods 1 and 2 generations are used steel shell pin battery, but in the AirPods Pro to replace the steel shell buckle battery, this change also makes the market brand manufacturers quickly follow.

I love audio.com has followed the development of the TWS headset market, and in the past few years has done a detailed disassembly of nearly 300 products, from which we found that many brands have also adopted steel-shelled snap batteries as the source of power for their own TWS headphones. This time, we will analyze in detail the advantages of steel-clad snap-on batteries in TWS headphones and their use cases~

What kind of batteries do you need for a TWS headset?

TWS headphones are mainly composed of two parts: the charging case and the headset. The charging case serves to organize and protect the headset and to charge the headset. The charging case is usually made of a soft polymer battery with a small capacity, which makes the overall size smaller and easier to carry around and organize the headphones anywhere and anytime. However, some headphones have a larger charging case with a built-in 18650 battery, which can support the mobile power function.

Because the headset uses a wireless connection, both headphones also require a battery to power the internal components. The battery inside the headset is divided into soft-cover and steel-case batteries, and the soft-cover batteries can be made into a variety of shapes to fit the shape of the headset; the steel-case batteries are divided into steel-case pin and steel-case button shapes according to the shape of the headset. The steel case button type battery is more widely used, and the steel case pin type battery is only used in a few products.

Steel-case button cell battery advantage

I love audio network disassembled and analyzed hundreds of TWS headphones, and found that more and more headphones use steel-case button cell batteries as power supply. We interviewed with many battery experts in the industry to learn what advantages and precautions to use steel case button cell batteries as batteries for TWS headphones, and shared them with you to learn and study together.

Valentine:

The advantages of steel case button batteries include: high battery capacity density; round buttons to fit the shape of the headset, providing as much battery capacity as possible in a tight space; hard shells that aren't easily broken; easy to manufacture and assemble for the headset; and no bulging in charging and discharging to allow for a more accurate design of the headset size without having to reserve space for expansion. The headset is designed to be more precise in terms of size without the need to reserve space for expansion.

EVERWELL Lithium Ion:

The steel shell bean batteries have higher energy density, lower expansion and leakage rates, high dimensional consistency, high space utilization, and fast charging, which makes the assembly of the TWS headset easier and more convenient, and gives the TWS headset consumers a safe, lightweight, and long-lasting experience.

VDL Zijian:

Currently, TWS headset products, the headset form is mainly divided into two types: in-ear and semi-in-ear. In order to achieve a comfortable wearing experience, the headset appearance curve mostly presents an irregular round shape similar to the outline of the ear. Therefore, when the battery is to be put into it, in order to be able to carry a larger battery capacity also needs to be adjusted according to the appearance.

The rounded shape of the steel casing snap-on battery, which is less prone to deformation and has less room for expansion, and the ability to fit directly onto the PCB, effectively saves space and allows for a larger battery capacity.

Microelectronics New Energy:

For manufacturers, steel case button cell batteries are dimensionally consistent and do not need to intentionally reserve space for expansion. The acoustic cavity can be consistently centered during product assembly, ensuring the consistency of the FR and ANC curves, and a good guarantee of manufacturing yields.

For consumers/users, headphones with steel case button cell batteries will not expand during use, and product performance will not change over time.

From the above, we can understand that the biggest advantage of the steel shell button battery is good product consistency, and will not bulge in the charge/discharge cycle, without the need to reserve expansion space for the battery, so that you can set up a larger battery capacity; the steel shell of the steel shell button battery hard steel shell, automated assembly can be realized in the assembly can also play a very good role in protecting the battery, to prevent the battery from extrusion or scratching, affecting the battery assembly. The hard steel case can realize the automated assembly of the battery.

Steel case button batteries have many advantages, but also has a significant disadvantage, is the use of high mechanical strength of the steel shell to replace the aluminum-plastic film encapsulation, compared to the soft pack batteries are heavier, the cost is also higher.

The current market summary of TWS headphones with steel cased button cell batteries

I love audio network this **** summarized 15 brands of 43 models of steel cased button cell batteries 103 applications, 43 products of different sizes, the capacity of the range of 30mAh-108mAh, the application of the product case covers the vast majority of the current market of TWS headphones. The battery is used in most of the TWS headset brands on the market today.

Battery brands include LiWei Lithium, Jinshan Battery, PengHui Energy, LEBEI, Electricity's Electronics, Micro Zeus Electronics, Microelectronics New Energy, NanFu Transmission, OMNI, Samsung, ShenNeng, YanJiu Electronics, Varta, Chongqing Zijian, YanJiu Electronics, and ZiLi Battery. Let's take a closer look at these brands and their product applications.

EVE Lithium Ion

EVE Lithium Ion was founded in 2001, is a national high-tech enterprises, focusing on lithium battery innovation and development. After nearly nineteen years of cultivation, the company's lithium batteries sold worldwide, lithium primary batteries in the domestic market occupies an important position. In the past three years, YWL has focused on the power and energy storage market, adopting highly automated and informationized production methods to provide customers with high-quality, highly reliable lithium battery products and services.

Application Cases:

(01) Disassembly Report: Samsung Galaxy Buds+ True Wireless Bluetooth Headset

(02) Disassembly Report: UGREEN HiTune T1 True Wireless Bluetooth Headset

(03) Disassembly Report: ZiMi ZMI PurPods True Wireless Bluetooth Headset

(04) Dismantling Report: ZMI PurPods Pro True Wireless Noise Canceling Headset

(05) Dismantling Report: Birdie Libratone AIR+ 2nd Generation True Wireless Noise Canceling Headset

(06) Dismantling Report: Haylou Heylou MoriPods True Wireless Bluetooth Headphones

(07) Dismantling Report: Haylou W1 True Wireless Headphones

(08) Dismantling Report: Redmi AirDots3 Pro True Wireless Noise Cancelling Headphones

GP Kingsford Battery

Shenzhen Kingsford Battery Co. Ltd. was established on November 05, 2007, is a direct subsidiary of Hong Kong Gold Peak Battery International Co. The company's main business items are research and development, production and sales of lithium batteries, nickel-metal hydride batteries, disposable batteries, battery chargers (including batteries) and battery accessories, as well as the above import and export business, battery R & D technology services.

Application Cases:

(01) Teardown Report: ROWCING True Wireless Bluetooth Headset

GREATPOWER PengHui Energy

Guangzhou PengHui Energy is mainly engaged in the production of polymer lithium-ion, lithium-ion, nickel-metal hydride, and other secondary Guangzhou PengHui Energy mainly produces polymer lithium-ion, lithium-ion, nickel-metal hydride and other secondary rechargeable batteries, lithium iron, lithium manganese, lithium thionyl chloride, zinc air and other primary batteries, the products are widely used in mobile power, aeromodelling, new energy automobile power batteries, car starter power supply, communication base station backup power supply, wind energy storage and home energy storage battery system solutions, and take the lead in the realization of the large-scale production, has its own intellectual property rights, the main technical indicators are in the domestic and international advanced level. The company has been producing lithium batteries since 2002, and is a veteran consumer lithium enterprise.

Application Cases:

(01) Disassembly Report: Funcl Crazy Rice AI True Wireless Bluetooth Headset

(02) Disassembly Report: JBL Free True Wireless Bluetooth Headset

(03) Disassembly Report: JBL TUNE120 True Wireless Bluetooth Headset

LIDEA Electronics

Dongguan Electric Electronics Co. The production workshop covers an area of more than 5000 square meters, with advanced automatic production lines and automatic testing equipment. The products use domestic and foreign quality and high quality raw materials, in strict accordance with the ISO9001: 2008 quality system standards for the organization of production and strict quality process control, and constantly improve the quality assurance system, the products of various technical indicators have exceeded the IEC international standards, and has a number of new practical inventions and patents of the button battery.

At present, the company's two major environmentally friendly battery series: lithium-manganese dioxide disposable button batteries and lithium-ion rechargeable button batteries have been widely used in a variety of advanced electronic and electrical consumer products: motherboards, calculators, electronic dictionaries, electronic clocks and watches, remote controls, immobilizers, electronic scales, rice cookers, LED shoe lamps, active labels, electric toys, medical equipment and a variety of The company's products have been widely recognized as one of the best in the industry. strong>

MBT is the inventor of the GTSS lithium-ion battery, the Glass Seal Blast Valve, and the Stainless Steel Fluted Blast Valve and continues to develop new lithium-ion battery technologies. Through innovative technology, we are able to circumvent intellectual property rights, ship to the global market, and provide customers with safe, reliable, and durable lithium-ion batteries. We also provide high energy density beyond imagination, tiny size that cannot be manufactured by traditional technology, and always be open to customized development, with customers as our life, innovation as our root, and quality as our soul.

Application Cases:

(01) Disassembly Report: OPPO Enco X True Wireless Noise Cancellation Headphones

MIC-POWER Micro Power New Energy

Guangdong Micro Power New Energy Co. The location is Dongjiang Hi-Tech Industrial Park in Huizhou City. The company is mainly engaged in the design, production, and sales of lithium-ion steel cased cylindrical button cell batteries, and is able to provide customized batteries and battery packs according to customers' design specifications, so that they can use the safest and highest capacity batteries to power the next generation of technology. The products are mainly used in Bluetooth headsets and headphones.

Applications:

(01) Teardown Report: 233621 Pearl True Wireless Bluetooth Headset

(02) Teardown Report: 233621 Zen Pro True Wireless Noise Canceling Headset

(03) Teardown Report: AUKEY EP-T10 True Wireless Bluetooth Headset

(04) Dismantling Report: EDIFIER Rambler DreamPods True Wireless Bluetooth Headset

(05) Dismantling Report: EDIFIER Rambler HECATE GM4 True Wireless Gaming Headset

(06) Dismantling Report: EDIFIER Rambler HECATE GM6 True Wireless Gaming Headset

(07) Dismantling Report: EDIFIER Lollipods Pro True Wireless Noise Canceling Headset

(08) Dismantling Report: EDIFIER TO-U2 True Wireless Bluetooth Headset No Heart Edition

(09) Dismantling Report: EDIFIER TWS NB2 True Wireless Noise Canceling Headset

(10) 拆解报告：EDIFIER漫步者 X6 真无线蓝牙耳机

(11)拆解报告：Jabra捷波朗 ELITE 85t 真无线降噪耳机

(12)拆解报告：JEET Air Plus 真无线蓝牙耳机

(13)拆解报告：Klipsch杰士 T5 真无线蓝牙 Headset

(14) Disassembly Report: MEIZU Meizu POP 2 True Wireless Bluetooth Headset

(15) Disassembly Report: MEIZU Meizu POP 2s True Wireless Bluetooth Headset

(16) Disassembly Report: RHA TrueConnect 2 True Wireless Bluetooth Headset

(17) Disassembly Report: RHA TrueControl ANC True Wireless Noise Canceling Headset

(18) Disassembly Report: UGREEN HiTune WS100 True Wireless Bluetooth Headset

(19) Disassembly Report: VIDVIE X-Pods True Wireless Bluetooth Headset

(20) Disassembly Report: vivo TWS Earphone True Wireless Bluetooth Headset

(21) Dismantling Report: vivo TWS Neo True Wireless Bluetooth Headset

(22) Dismantling Report: FeiZhi Technology Silver Fox T1 True Wireless Bluetooth Headset

(23) Dismantling Report: vivo TWS 2 True Wireless Noise Canceling Headset

NANFU Transmission <

Shenzhen Whalefire Technology Co., Ltd. is part of the Nanfu Group. Relying on Nanfu's unique multi-chemistry system technology advantage, Whalefire Technology innovatively launched the world's first high-capacity IOT battery - Transcend. In response to the working mode of IOT electrical appliances, Transcend has fundamentally adjusted the electrochemical system of the battery to effectively enhance the effective capacity of the battery, and launched a series of IOT batteries such as rechargeable coin cell, rechargeable lithium battery, lithium manganese coin cell and IOT alkaline batteries, which can satisfy the high-capacity power needs of electrical appliances in different scenarios, and enable the Internet of all things to be connected at one time.

Applications:

(01) Teardown Report: NetEase Oxygen True Wireless Bluetooth Headset LITE+ Edition

OMNI

Applications:

(01) Teardown Report: NetEase Oxygen True Wireless Bluetooth Headset LITE+ Edition