SER 122543 Small Lipo Battery | 3.7V 1400mAh Ultra‑Thin Lithium‑ion Polymer Battery

Introduction to SER 122543 Lipo Battery

When compact portable electronics demand stable, long‑lasting power within limited internal space, small lipo battery solutions become the core deciding factor for overall device performance. The SER 122543 is a customizable small lithium‑ion polymer battery, also widely known as a lipo battery, designed and manufactured by SERUI Battery Technology. As a representative model of our ultra thin battery product portfolio, this 3.7V 1400mAh lipo battery balances compact physical dimensions, dependable energy output, broad environmental adaptability and comprehensive safety protections for modern compact‑form‑factor devices.

Traditional cylindrical lithium‑ion cells often struggle to fit slim‑profile hardware, as fixed circular outlines waste valuable internal device space. Thanks to aluminum‑plastic composite laminated film packaging technology, lipo batteries can be manufactured into custom flat, ultra‑thin rectangular shapes. The SER 122543 small lipo battery follows this design philosophy, delivering 1400mAh nominal capacity within the footprint of 12×25×43 mm. This ultra thin battery excels at powering compact consumer electronics, portable medical accessories, smart home sensors, wearable auxiliary equipment, handheld testing instruments and IoT wireless terminals. For product engineers and procurement teams searching for a space‑saving lipo battery that supports OEM and ODM modification, SER 122543 stands out as a mature, field‑proven power cell option.

Every batch of our small lipo battery goes through multi‑stage in‑house validation before shipment. We do not only focus on basic electrical parameters, but also verify real‑world performance under extreme temperature swings, repeated charge‑discharge cycling, vibration simulation and short‑circuit risk scenarios. Whether you need off‑the‑stock standard lipo battery units or fully modified ultra thin battery samples for new product development, SERUI Battery provides end‑to‑end support from sample prototyping, parameter tuning, connector matching to mass‑volume production.

Core Electrical and Physical Specifications of SER 122543 Small Lipo Battery

The SER 122543 lipo battery operates at a nominal voltage of 3.7 V, with a standard full‑charge voltage reaching 4.2 V and a cut‑off discharge voltage set at 2.75 V. Its nominal capacity hits 1400mAh, delivering stable continuous power output for low‑to‑moderate drain portable devices. This ultra thin battery supports standard charging current at 0.65 A and peak maximum charging current up to 1.3 A; for discharging, it matches the same rating: 0.65 A standard discharge and 1.3 A maximum discharge current, which fits most small‑size portable electronics without high‑burst‑current requirements.

Physical dimension of this small lipo battery is 12 mm (thickness) ×25 mm (width) ×43 mm (length). The 12‑mm thickness defines its ultra thin battery positioning, allowing integration into slim device housings where thick cylindrical cells cannot be installed. The cell weighs merely 22 grams, greatly helping end‑product designers control total device weight, a critical metric for wearables and handheld portable gadgets.

Temperature performance is one major highlight of this lipo battery. The charging temperature window spans 0 °C ~ 45 °C, while its discharging temperature covers a broad range from ‑20 °C to 60 °C. Such wide operating temperature enables the SER 122543 ultra thin battery to function reliably not only for indoor room‑temperature consumer devices, but also for equipment deployed in cold outdoor environments or high‑temperature enclosed cabinet spaces. Many small lipo battery alternatives suffer from sharp capacity drop under sub‑zero conditions or accelerated aging under high heat; our SER 122543 maintains usable output across this full spectrum, lowering failure risks for field‑use hardware.

Cycle life is another essential indicator for lipo battery quality. The SER 122543 small lipo battery achieves more than 500 charge‑discharge cycles before capacity decays down to 80 % of its initial rated capacity. A long cycle life directly translates into longer service life for your end devices, reduces after‑sales maintenance workload and lowers total‑of‑ownership cost for end users. Instead of frequent battery replacement, devices powered by this ultra thin battery can stay in service for extended periods, which brings obvious advantages for IoT sensors and long‑running portable instruments.

Built‑in protection circuit safeguards the lipo battery against common lithium‑ion hazards. Adopting Japanese dual‑IC protection solution, the protection module monitors cell status in real‑time, implementing multi‑layer protection functions: over‑charge protection, over‑discharge protection, over‑current protection, over‑load protection and short‑circuit protection. Even under abnormal operating conditions or user mis‑operation, the small lipo battery will cut off circuit automatically to prevent swelling, heat generation or safety incidents. Every finished ultra thin battery unit passes MSDS‑relevant compliance verification, making it ready for global shipment and product certification submission.

Key Advantages of SER 122543 Ultra Thin Lipo Battery

High Energy Density within Compact Form Factor

High energy density is the core merit of modern small lipo battery products. The SER 122543 lipo battery packs 1400mAh energy storage into its 12×25×43 mm ultra thin battery outline. Compared with conventional lithium‑ion cells, it realizes higher energy storage per unit volume. For product developers, high energy density means you can obtain decent runtime without enlarging your device housing. If your product project is limited by strict mechanical space constraints, selecting this small lipo battery avoids the trade‑off between device miniaturization and battery endurance. Many competing ultra thin battery models sacrifice capacity for thinner thickness; our SER 122543 strikes a balanced sweet spot between slim dimension and practical capacity performance.

Extended Cycle Life for Long‑Term Application

Our SER 122543 small lipo battery delivers over 500 working cycles. In practical terms, for devices that get fully charged and discharged once per two to three days, this lipo battery can maintain qualified performance for multiple years. Long cycle life carries two‑fold commercial value. For B2B buyers, it decreases product return rates related to battery aging and cuts after‑sales support pressure. For end‑users, they do not need to replace batteries frequently, improving overall product experience. For remote‑deployed IoT devices, portable testing equipment and infrequently‑serviced field hardware, this ultra thin battery’s long cycle performance becomes a decisive purchasing factor.

Enhanced Safety with Japanese Dual‑IC Protection Circuit

Safety always ranks top priority for any lipo battery application. Low‑quality small lipo battery without reliable protection may face swelling, overheating under abnormal charge‑discharge scenarios. SERUI Battery equips SER 122543 ultra thin battery with imported Japanese dual‑IC protection solution. This dual‑chip design provides redundant monitoring for voltage and current signals. When over‑charge, over‑discharge, over‑current, over‑load or short‑circuit events occur, the circuit will rapidly disconnect the loop to isolate risks.

We do not rely solely on component‑level safety. Every production batch undergoes strict safety‑related tests, including short‑circuit testing, over‑charge abuse testing and thermal exposure inspection. Such rigorous quality control ensures every outgoing lipo battery meets consistent safety benchmarks. Whether you integrate this small lipo battery into consumer‑grade gadgets or semi‑industrial portable devices, the built‑in protection system offers reliable risk prevention.

Light‑Weight Aluminum‑Plastic Composite Construction

As a typical lipo battery, SER 122543 ultra thin battery adopts aluminum‑plastic composite laminated film outer packaging. This material differentiates lipo battery from metal‑shell cylindrical lithium‑ion cells. The soft laminated casing brings two major benefits: thin form factor and light weight. At merely 22 grams, this small lipo battery adds minimum weight burden to handheld and wearable products. The flexible aluminum‑plastic package also grants greater design freedom: upon custom request, we can adjust partial dimension parameters to fit special housing structures, something hard to achieve with rigid metal‑shell batteries.

Convenient Assembly with Pre‑Installed Connectors

Many customers face extra processing work when sourcing bare lipo battery cells. The SER 122543 small lipo battery supports pre‑fitted Molex or Tyco connectors directly from factory. We can mount your target connector onto the ultra thin battery before delivery. When your production line receives goods, technicians can complete wiring assembly by simple plug‑and‑play operations, eliminating manual soldering work on site. Pre‑installed connectors lower assembly error rates, boost production efficiency and reduce potential safety risks brought by improper soldering towards lipo battery tabs. For mass‑production‑oriented buyers, this feature greatly optimizes your manufacturing workflow.

Full‑Range OEM & ODM Customization Service

We understand standard off‑the‑shelf small lipo battery cannot satisfy every unique project requirement. Therefore, SERUI Battery provides comprehensive OEM and ODM customization for SER 122543 ultra thin battery base model. What can we customize for your lipo battery? You may adjust nominal capacity within reasonable range, change connector pin definition and cable length, modify cable wire gauge, add thermistor NTC for temperature monitoring, print customized silk‑screen logo, part number and specification text on battery surface, or fine‑tune partial dimension within technical feasibility.

Our engineering team collaborates with you from early‑stage sample evaluation. You share your device’s mechanical drawing, power consumption profile and target application environment; our technicians give professional feedback on lipo battery parameter optimization. Whether you only need minor modification based on SER 122543, or you hope to develop a brand‑new ultra thin battery drawing according to your specification, our ODM workflow covers sample making, prototype verification, small‑batch trial run and large‑scale mass production. Custom small lipo battery service supports startup prototype projects as well as mature enterprise bulk orders.

Rigorous Quality Assurance

Every SER 122543 lipo battery is produced under standardized manufacturing procedures. Raw material incoming inspection is implemented for cathode, anode, separator, electrolyte and protection IC. Semi‑finished cells go through formation, aging and sorting processes. Finished ultra thin battery units will be sampled for capacity testing, internal resistance testing, voltage consistency check, temperature cycling test and safety abuse test.

We keep production records for each batch, supporting batch traceability. When you purchase our small lipo battery, you receive cells with stable consistency. Poor consistency among lipo battery units will cause uneven runtime and early failure for partial units; our multi‑step screening minimizes such quality deviation. For customers who need to submit product certification, we can supply supporting documentation such as MSDS for this ultra thin battery model.

Competitively‑Priced Without Performance Compromise

High‑performance ultra thin lipo battery does not have to come with prohibitive cost. By optimizing our supply chain and in‑house production workflow, SERUI Battery delivers the SER 122543 small lipo battery with competitive pricing, while keeping high standards on cell material, protection circuit and quality testing. Many buyers face a dilemma: low‑cost lipo battery suffers from short cycle life and hidden safety risks, while imported premium ultra thin battery carries very high unit cost. Our positioning fills this gap: reliable quality at cost‑effective price point. Whether you place small‑volume sample orders or hundred‑thousand‑level mass procurement, we offer reasonable pricing structure so your end‑product can maintain market competitiveness.

Typical Application Scenarios for SER 122543 Small Lipo Battery

Thanks to its ultra‑thin size, 1400mAh capacity, wide temperature adaptability and customizable features, this lipo battery fits a wide spectrum of portable devices.

Portable consumer electronics: Many compact handheld gadgets require small lipo battery as power source. Slim portable audio equipment, handheld beauty instruments, portable humidifiers and mini‑size portable recorders can adopt SER 122543 ultra thin battery. Its 1400mAh capacity offers satisfactory working duration, and its slim profile helps product designers pursue lightweight, thin‑looking appearance for end‑goods.

IoT and smart sensor hardware: Wireless IoT sensors, smart home remote modules, environmental monitoring transmitters often work unattended for long periods. The >500‑cycle life of this small lipo battery reduces maintenance frequency. The wide discharging temperature range from ‑20 °C to 60 °C makes the lipo battery suitable for sensors installed in garages, balconies or semi‑outdoor positions where temperature fluctuates sharply. Custom‑added NTC temperature probe option further assists host device to monitor ultra thin battery working status.

Portable medical auxiliary devices: Many portable home‑use medical accessories need stable, safe small lipo battery power supply. Built‑in dual‑IC protection minimizes safety hazards, and we can customize connector and cable configuration to match medical device assembly requirements. Strict batch‑to‑batch consistency of SER 122543 ultra thin battery guarantees stable performance for every unit.

Hand‑held testing and measuring instruments: Field‑deployed portable testers frequently encounter variable ambient temperature. The SER 122543 lipo battery maintains stable output under both cold and hot conditions. Pre‑installed Molex or Tyco connectors simplify instrument assembly work. For instrument manufacturers, our OEM service allows you to print your own part number on small lipo battery outer surface for internal inventory management.

Wearable and auxiliary wearable equipment: Though not for tiny wrist‑watch‑grade wearables, this ultra thin battery works well for slightly larger wearable accessories such as portable heating accessories, auxiliary display modules. Its 22‑gram light weight will not bring excessive burden for users, and 1400mAh capacity supports hours‑long continuous operation.

For all above‑mentioned applications, if standard SER 122543 parameter cannot perfectly match your hardware, our ODM team can adjust the small lipo battery accordingly.

Why Choose SERUI Battery for Your Ultra‑Thin Lipo Battery Project

The market is flooded with lipo battery suppliers, but qualified partners for small lipo battery need to combine manufacturing capability, customization capacity, strict quality control and stable after‑sales support. SERUI Battery focuses on lithium‑polymer cell research, production and global supply. We specialize in ultra thin battery and custom lipo battery solutions for worldwide B2B clients.

First of all, we own complete production workflow for lipo battery. From electrode preparation, cell laminating, electrolyte injecting, formation to protection circuit assembly, core procedures are finished in‑house. This gives us full control over product quality and lead time. When you place custom OEM/ODM small lipo battery orders, we can flexibly arrange sample production and mass‑production schedule.

Secondly, our technical team accumulates rich experience in ultra thin battery development. We are familiar with the pain points of thin lipo battery, such as thickness consistency control, swelling risk prevention, low‑temperature capacity retention. When you provide your device requirements, our engineers do not just copy‑paste standard parameters; they give practical suggestions regarding lipo battery layout, protection setting and connector selection.

Thirdly, we serve global customers. We handle export documentation, MSDS and shipment guidance for lipo battery products. Whether you are located in Southeast Asia, Europe, Middle East or other regions, we support safe delivery of small lipo battery goods. Our sales and technical support team offers timely communication throughout sample testing, order production and after‑sales phase.

Many customers come to us with only a rough idea for an ultra thin battery: they know the limited space inside device and estimated power consumption, without precise battery specification. Our workflow supports this situation: you share your mechanical constraints and power demand, we propose suitable small lipo battery reference model (such as SER 122543) and provide samples for your real‑machine testing. After validation, we move forward to formal bulk production.

Buying Guide & Frequently Asked Questions about SER 122543 Lipo Battery

Conclusion

The SER 122543 3.7V 1400 mAh customizable small lipo battery is a mature ultra thin battery solution built for compact portable electronic devices. With 1400mAh practical capacity, wide ‑20 °C~60 °C discharging temperature range, over 500‑cycle service life, Japanese dual‑IC multi‑protection safety design, lightweight aluminum‑plastic composite shell, pre‑mountable industry‑standard connectors, plus full OEM & ODM customization, this lipo battery solves many power‑supply challenges for product developers.

If you are sourcing reliable small lipo battery, or seeking custom ultra thin battery for your new‑generation portable hardware project, SERUI Battery welcomes your inquiry. We can deliver SER 122543 samples for your evaluation, discuss modification possibilities and offer competitive quotation for mass‑volume orders. Contact our team today to get tailored lipo battery solution for your device.