Custom Tiny Lipo Battery Manufacturer in China
As a professional custom battery manufacturer, VTCBATT focuses on providing highly consistent and safe Tiny LiPo battery solutions. Our products not only have high energy density and high rate discharge capabilities, but can also be flexibly customized in terms of size, wiring method, and interface type according to customer needs. This ensures that the battery can be accurately integrated into the device structure, helping customers achieve the goal of product miniaturization and high integration.
With high-quality battery cell technology and a complete safety certification system (such as UN38.3, IEC62133, etc.), VTCBATT’s micro batteries have been widely used by global Bluetooth headsets, smart bracelets, blood glucose meters, and other industry customers, and have gained widespread trust
Tiny Lipo Battery Model
Advantages of Our Tiny Lipo Battery
The small lipo battery’s positive and negative electrode materials and separators inside the battery are made into ultra-thin sheets. The thickness of the pole piece is reduced through a high-precision coating process, the pole pieces are thin, and the overall stacking is compact, which effectively reduces the thickness of the battery.
The core of the soft pack structure is to replace the traditional metal shell with lightweight, flexible materials, and combine precision stacking technology with high-performance packaging technology to achieve miniaturization, lightweight, safety, and high customization of the battery.
The highly embeddable battery can fit the edge of the shell, special-shaped areas, and even curved surfaces, thereby freeing up more space for core functional components such as motherboards and sensors. It has a direct impact on the aesthetics of the product and the wearing comfort of the user.
Universal compatibility means that small lithium polymer batteries can directly match a large number of mainstream devices in terms of battery size, electrical performance, and interface standards, without requiring customization or a plug-and-play approach.
Witness of lipo battery production from raw materials to battery pack
Focusing on automation,safety and quality,VTCBATT stands as a benchmark of lipo battery manufacturing after 20 years battery expertise.Providing tailor-made lipo battery from small size to high capacity,every process reflects our precision engineering,smart management and obligation to excellence.
Great deal starts from tiny details is our principle to support our every customers in free technical support, continuous improvement and long-term value.
Applications of Our Tiny Lipo Battery
In smart wearable devices, the battery not only needs to provide a stable power supply but also needs to be lightweight, comfortable, and fit the human body. Compared with traditional metal shell batteries, we use Tiny LiPo and Small LiPo batteries with flexible soft-pack structures. They have no metal shell, are lighter in weight, and thinner in thickness. They will not cause a sense of oppression when worn on the wrist, ears, and other parts, and are suitable for long-term wear. At the same time, smart wearable devices usually adopt streamlined or curved shell designs, and standard batteries are often difficult to adapt. Our micro lithium polymer batteries support customized special-shaped sizes, and can be developed exclusively according to the internal space and curved structure of the device, and can be easily embedded without affecting the appearance and function integration. Whether it is a smart bracelet, headphones, glasses, or wearable health monitoring equipment, we can provide customers with more matching, more efficient, and more comfortable power solutions.
Bluetooth speakers have high requirements for battery life and output stability. Small LiPo batteries have low internal resistance and good discharge performance. They can stably drive speakers, power management chips, and Bluetooth modules, which not only ensures playback time, but also has a positive effect on sound quality. They are an ideal choice for meeting the needs of long battery life and high sound quality. For smaller and lighter Bluetooth speakers (such as portable hanging buckle or mini models), the battery thickness is often limited to 2~3mm, and the micro Tiny LiPo battery is more advantageous at this time. We can customize the size and capacity according to the product structure to help customers achieve a stable power supply in a very small space, and provide a power supply solution that takes into account both performance and structure for lightweight Bluetooth speakers.
Handheld game consoles typically use small LiPo batteries because these batteries are well-suited for the portability and battery life requirements of handheld game consoles, particularly in terms of volume, voltage stability, discharge performance, and customization flexibility. The handheld game console itself is limited in size, so it can only blame the use of thin and light batteries. LiPo batteries are packaged in soft packages without metal shells, which are lighter than cylindrical batteries and are very suitable for embedding inside or on the back of handheld game consoles.
Micro Medical DevicesMost medical devices need to be directly attached to the skin, so the battery must be thin and light and cannot press against the user’s skin. Tiny LiPo batteries can be 1~3mm thick and weigh less than 2g, making them very suitable for long-term use next to the skin. In addition, medical devices have high-precision structures, and devices from different manufacturers and models are different, so customizable LiPo batteries must be used to accurately match them, Soft-pack LiPo batteries support free customization of length, width, height, and shape (long, square, oval, curved edges), and can be accurately embedded in medical devices.
The reason why tiny LiPo batteries can provide higher capacity in the same volume is that they maximize the conversion of limited space into effective energy storage space through high-energy materials + extreme stacking structure, + fine process control.
Popular small LiPo port standards are mainly JST-PH, Molex, and Hirose. Different equipment has various requirements for a docking plug-in. A good interface selection is critical to product stability and ease of assembly.
JST-PH interface
This is the more popular small lithium battery connector of the two types. Compact and in firm connection. With small volume, it is applied in products that have limited volume, such as Bluetooth speakers, smart bracelets, remote controls, wearable devices, and so on. According to the customer’s assembly space, we can meet the customer’s fast installation needs, and we can also tailor a variety of wire lengths and wire gauges.
Molex interface
For equipment requiring higher requirements for contact stability, such as medical equipment, industrial control modules, communication terminals, and so on, the Molex interface is more mainstream. Long plug-in life, not easy to lose. It is applicable for long-time working or frequent plug-in & plug out using.
Hirose DF series interface
This kind of interface applies to devices with volume and reliability requirements very high, such as hearing aids, portable electrocardiographs, medical jiedai chanpin, and the like. The plug-in is also very stable, and the size of the mini plug is also OK for long-term use.
We can provide interface type, wire specification, and connector model customization services according to the project, which is convenient for customer equipment docking, shortens development time, and avoids rework waste.
All our LiPo batteries use the most popular and latest 2.0mm banana to ensure maximum current flows. By using the best energy density, we can store more power in a smaller battery to improve your device’s performance logically.
The battery cells are subjected to strict quality control, which includes voltage tolerance, capacity acceptance, cycle life test, and safety test. And all of our batteries comply with RoHS and CE quality testing standards. The good cycle life makes hundreds of charging and discharging cycles work more stably and prolong the product’s life cycle.
Meanwhile, the battery cells are of good temperature resistance and are adaptable to a variety of complex environments, to guarantee the stable operation of the device.
With a complete production and assembly process and a perfect quality testing system, we make sure that every battery is reliable and durable, so that it can fully meet the different customized needs of customers, and let your products quickly hold the market.
Our small and very small LiPo batteries are capable of stable operation in a wide range of conditions, from -20°C to +60°C during discharge and from 0°C to +45°C during charge. This guarantees a reliable use for most consumer electronics, wearables, and battery-powered high-demand applications.
For applications where to work at higher or lower temperatures—modifiers like outdoor sensors, medical patches, industrial IoT devices—we can offer tailored solutions. We optimize performance in cold weather by optimizing the electrolyte formulation and reducing the impedance of the separator materials. We optimize cell structure and add isolation protection layers through high-temperature, long-term running to further reduce the risk effects caused by the heating process. External thermal insulation or heating elements on all felted components can also be provided if necessary for complete systems.
Whether you need clocks for winter land temperatures or heat-drenched machinery, we can customize the battery to your real-world environment.
To guarantee the safety and stability of Tiny/Small LiPo batteries, we provide the protective board (PCM/PCB) to make multiple protective functions (including overcharge, over discharge, over current, and short circuit), and effectively keep the battery from danger and prolong the battery’s life.
The life of batteries equipped with general protection boards has been greatly prolonged, and the safety of terminal products has been greatly enhanced, and the market competitiveness has been enhanced.
For special needs of power current protection and multi-string battery management, we give customization support to guarantee the most suitable battery solution to be developed and make your product more competitive, keep the battery from danger, and prolong the battery’s life.
The life of batteries equipped with general protection boards has been greatly prolonged, and the safety of terminal products has been greatly enhanced, and the market competitiveness has been enhanced.
For special needs of power current protection and multi-string battery management, we give customization support to guarantee the most suitable battery solution to be developed and make your product more competitive.
For small and ultra-small LiPo batteries, we recommend using a dedicated lithium battery chip or module that supports constant current and constant voltage (CC/CV) charging mode for management to ensure the stability and safety of the charging process. The standard charging voltage must not exceed 4.2V, and the charging current is recommended to be controlled between 0.5C and 1C to balance charging efficiency and battery life. According to the specific needs of customer projects, we can customize charging solutions and provide matching protection boards (PCM/BMS) to achieve multiple electrical protections such as overcharging, over-discharging, and short circuits to avoid performance degradation or safety hazards of small-capacity batteries in high-frequency charging and discharging applications. At the same time, we can also assist customers in debugging exclusive charging IC parameters, and support integrated structural design, integrating charging ports, protection boards, and wires before shipment, reducing the difficulty of integration and assembly for the entire machine factory.
