Why Battery Swelling Happens in Wearable Devices?
I often meet teams after swelling complaints appear. The product looks finished, the launch is…
Products
CE CR2 Replacement 15270 400mAh Battery
The CR2 Replacement 15270 400mAh Battery is a compact rechargeable cylindrical lithium-ion battery designed for electronic products that require a CR2-size battery format with reusable power capability. With a 15270 cylindrical structure and 400mAh capacity, it is suitable for security sensors, compact cameras, measuring equipment, smart monitoring devices, electronic instruments, and other space-limited products.
Compared with disposable CR2 primary batteries, a rechargeable 15270 lithium-ion battery can provide a reusable power solution for products specifically designed to support rechargeable lithium-ion voltage and charging requirements. LithoTop provides customized battery assembly, tabs, wires, connectors, protection circuits, labels, insulation, and OEM/ODM solutions according to customer projects.
Additional information
| Product Type | Lithium Ion Battery Pack |
|---|---|
| Model number | 15270 |
| Voltage (Nominal) | 3.7V |
| Charge Voltage | 4.2V |
| Capacity (Nominal) | 400mAh |
| Dimensions | Max. 15.6*31mm |
| Constant Discharge Current | Typically 0.2C-3C |
| Working Temperature | -20°C~60°C |
| Certification | CE/ROHS |
Professional Lithium Ion Battery Solutions
LithoTop designs and manufactures premium lithium-ion battery solutions using Grade A cells and self-developed BMS technology. From prototype to mass production, we provide customized OEM & ODM battery packs with superior safety, long cycle life, and reliable performance for robotics, medical devices, wearable electronics, IoT, energy storage, and industrial applications.
The 15270 400mAh rechargeable battery uses a compact cylindrical format similar to the CR2 form factor, making it suitable for products where battery diameter and length are strictly limited. Its rechargeable lithium-ion chemistry can help reduce repeated disposable battery replacement in compatible electronic systems.
With 400mAh capacity, this battery is suitable for devices that combine standby operation with periodic higher-power functions such as wireless transmission, sensor activation, LED indication, data recording, or short motor operation. The cylindrical structure also provides good mechanical stability for portable and embedded electronic applications.
Because standard disposable CR2 batteries and rechargeable lithium-ion cells may use different voltage platforms, the device charging circuit and operating voltage must be confirmed before replacement. LithoTop can evaluate the customer’s device specifications, current requirement, charging method, protection design, and battery compartment before recommending the final battery configuration.
LithoTop applies strict production control during cell selection, capacity testing, voltage inspection, internal resistance checking, protection assembly where required, aging verification, appearance inspection, and final quality control to support consistent mass production performance.
- Compact 15270 Cylindrical Format
Designed for products with limited battery space and CR2-style cylindrical battery compartments. - Rechargeable Lithium-ion Chemistry
Suitable for compatible devices designed around rechargeable lithium-ion charging and voltage requirements. - Optional Protection Circuit
PCM protection can be added according to the customer’s electrical and safety requirements. - Flexible Terminal Customization
Supports battery tabs, lead wires, connectors, insulation, and custom cable direction for OEM integration. - Strict Quality Inspection
Voltage, capacity, internal resistance, appearance, and consistency are checked during production. - OEM & ODM Battery Solutions
LithoTop supports sample development, product matching, labeling, packaging, and mass production customization.
- Security sensors
- Wireless alarm devices
- Compact digital cameras
- Laser measuring equipment
- Portable testing instruments
- Smart monitoring devices
- Electronic access equipment
- Outdoor electronic accessories
- Compact IoT devices
- Custom rechargeable electronics
Battery Cell Choices
LithoTop offers customized 15270 400mAh lithium-ion battery solutions for compact electronic devices requiring reliable power in limited installation space. Our engineering team supports cell selection, battery pack assembly, protection circuit integration, and customized wiring to meet different application requirements.
| Cell Type | Typical Capacity | Key Advantages | Typical Applications |
|---|---|---|---|
| 15270 | 400mAh | Compact cylindrical design, lightweight, space-saving | Security systems, IoT sensors, portable electronics, smart devices |
Battery Assemble
Flexible 15270 Lithium-Ion Battery Customization
Every application has different requirements for battery size, capacity, discharge current, wiring, and installation. At LithoTop, we provide custom 15270 lithium-ion battery solutions based on compact cylindrical cells with a capacity of 400mAh, designed for space-constrained electronic devices requiring reliable power.
Whether you need a single 15270 cell or a customized 15270 battery pack, our engineering team can tailor the battery configuration, protection circuit, connectors, cables, packaging, and other components to match your device design and application requirements.
Looking for a Reliable 15270 Battery Manufacturer?
Partner with LithoTop for factory-direct OEM & ODM battery solutions, engineering support, prototype development, and volume production. Share your battery specifications with our team to discuss customization options, sample availability, and competitive project pricing.
Request a Custom Battery Quote →With years of experience in custom lithium-ion battery manufacturing, LithoTop helps customers shorten development cycles, reduce engineering costs, and deliver reliable battery solutions for industrial, medical, consumer electronics, robotics, IoT, security systems, power tools, and many other demanding applications.
Complete Custom Lithium-Ion Battery Pack Solutions
LithoTop provides comprehensive OEM and ODM lithium-ion battery solutions, covering every stage from premium battery cells to fully customized battery packs. Whether your project requires a single cylindrical cell, a protected battery with PCB, or a complete battery pack with connectors and housing, our engineering team delivers reliable solutions tailored to your exact application.
We offer flexible customization services including battery cell selection, BMS design, PCB protection circuits, wire harnesses, connectors, heat-shrink packaging, and complete battery pack assembly. Every battery pack is engineered to meet specific requirements for voltage, capacity, discharge rate, dimensions, communication protocols, and safety standards.
To ensure maximum compatibility, LithoTop supports a wide range of industry-standard connectors including JST, Molex, XT30, XT60, SM, PH, XH, KET, and many other customized interfaces. Our hardware and software engineering teams also develop custom protection PCBs and smart BMS solutions with overcharge, over-discharge, over-current, short-circuit, temperature protection, cell balancing, Bluetooth, CAN Bus, SMBus, UART, and other intelligent communication functions.
With strict incoming material inspection, automated production equipment, and 100% functional testing, every custom lithium-ion battery pack is manufactured to deliver high safety, stable performance, long cycle life, and reliable operation for demanding applications worldwide.
Our Customization Includes
- Premium 15270 Lithium-ion Cells
- Custom PCB Protection Circuit Development
- Wire Harness & Connector Customization
- Heat Shrink & Battery Housing Assembly
- Battery Pack Mechanical Design
- OEM Logo & Laser Printing
- Certification Support: UN38.3, CE, RoHS, IEC62133, UL
- One-Stop OEM & ODM Battery Manufacturing
Customer Development Story
Discover how we helps global customers solve real-world battery challenges through customized lithium battery solutions.
01 – Germany Wireless Window Security Sensor Project with CE Support
A German building security company was developing a compact wireless window sensor for residential apartments and small commercial properties. The sensor used magnetic detection, a low-power controller, LED status indication, and periodic radio communication with a central alarm hub. The existing product relied on disposable CR2 batteries, but the customer wanted to develop a rechargeable version for premium installations where regular battery replacement was inconvenient.
The customer contacted LithoTop because the battery compartment had already been designed around a CR2-size cylindrical cell. They wanted to maintain the existing mechanical structure while evaluating whether a rechargeable 15270 battery could be integrated safely into a revised electronic platform.
LithoTop reviewed the battery cavity, wireless transmission peak, standby current, charging concept, voltage range, and protection requirements. Based on the updated rechargeable circuit design, LithoTop recommended the CR2 Replacement 15270 400mAh Battery as a compact power solution. The engineering team also evaluated terminal structure and insulation requirements to simplify assembly inside the security sensor.
During sample development, LithoTop supported standby testing, repeated alarm transmission simulation, LED activation testing, voltage stability evaluation, charging verification, and battery compartment fit checking. Because the finished product was intended for the European market, LithoTop also supported the customer with CE-related battery documentation for project qualification.
Before pilot production, both teams confirmed the approved battery sample, terminal configuration, insulation design, labeling, packaging, and incoming inspection requirements. The final rechargeable solution allowed the customer to create a premium version of the sensor with reduced disposable battery maintenance. For the customer, this improved product differentiation and supported smoother CE compliance preparation for the upgraded security device.
02 – Netherlands Digital Laser Measuring Tool Project with RoHS Support
A Netherlands professional tool company was developing a compact rechargeable laser distance meter for interior renovation, furniture installation, and building measurement. The device needed to power a laser module, digital display, memory circuit, buzzer, and short wireless synchronization function while remaining small enough to fit inside a pocket-sized housing.
The original product architecture used a replaceable CR2-format battery compartment. During development of a rechargeable version, the customer wanted to preserve the same compact mechanical design but replace the disposable battery concept with a rechargeable cylindrical solution.
LithoTop analyzed the laser activation current, display load, wireless synchronization peak, standby consumption, charging circuit, and internal battery compartment. After confirming the electrical requirements of the revised product, LithoTop recommended the 15270 400mAh rechargeable battery as a suitable CR2-size solution.
During prototype development, LithoTop optimized the terminal design, insulation structure, protection option, and battery label according to the customer’s assembly requirements. Samples were evaluated through repeated laser measurement cycles, display operation, buzzer activation, standby testing, charging cycles, voltage stability checking, and mechanical fit verification.
The customer also required RoHS support for European product distribution. LithoTop provided the related battery documentation and worked with the customer to confirm labeling and material compliance requirements before pilot production.
The final battery solution helped the customer retain the compact tool housing while introducing rechargeable functionality. For the customer, this reduced dependence on disposable batteries, improved product positioning for professional users, and supported smoother RoHS preparation for European sales.
Why Choose LithoTop for CR2 Replacement 15270 Battery Solutions?
Developing a rechargeable CR2-size battery solution requires careful evaluation of more than physical dimensions. The device voltage, charging circuit, discharge current, battery protection, terminal design, and installation structure must all be confirmed because rechargeable lithium-ion batteries may not be electrically interchangeable with standard disposable CR2 cells.
LithoTop supports customers from initial technical evaluation to sample validation and mass production. Our engineering team can help check battery cavity dimensions, operating voltage, charging requirements, peak current, protection needs, terminal configuration, connector design, and compliance requirements before confirming the final 15270 battery solution.
Manufacturing Capability
LithoTop has strong lithium battery manufacturing capability, combining advanced production equipment, experienced engineering teams, strict quality control, and flexible OEM & ODM services. From cell selection to final battery pack assembly, every process is carefully managed to ensure stable quality, reliable performance, and consistent mass production.
120,000+ Daily Production Capacity
LithoTop supports stable large-scale production for LiPo batteries, Li-ion battery packs, LiFePO₄ batteries, and customized battery solutions, helping customers meet both small-batch development and mass production needs.
Advanced Battery Pack Assembly Lines
Our production lines are equipped for cell sorting, spot welding, soldering, PCM/BMS assembly, insulation protection, labeling, aging, and final packaging, ensuring efficient and standardized battery production.
In-House BMS & PCB Production
LithoTop has its own BMS manufacturing facility with 10 production lines, supporting 1S–25S, 1A–300A battery protection solutions for Li-ion, LiFePO₄, and sodium battery packs.
Automated Cell Matching
Before battery pack assembly, cells are carefully matched by voltage, capacity, and internal resistance to improve battery consistency, safety, and cycle life.
Precision Welding Technology
We use professional spot welding and nickel strip connection processes to ensure strong electrical conductivity, low resistance, and stable high-current performance.
Strict In-Process Quality Control
During production, our quality team monitors key processes including welding quality, PCM/BMS connection, insulation, voltage consistency, appearance, and structural assembly.
Comprehensive Testing Capability
Each battery undergoes voltage testing, internal resistance testing, capacity testing, charge/discharge testing, aging tests, and final inspection before shipment.
OEM & ODM Customization
LithoTop supports customized voltage, capacity, battery structure, discharge current, connectors, wire length, housing, labels, packaging, and communication protocols.
Production Process
- Incoming Material Inspection: Cells, PCM/BMS, wires, connectors, nickel strips, and packaging materials are inspected before production.
- Cell Sorting & Matching: Cells are matched by voltage, capacity, and internal resistance to ensure pack consistency.
- Battery Pack Assembly: Cells are connected through professional welding, soldering, and insulation processes.
- PCM/BMS Integration: Protection boards are installed and tested according to battery safety requirements.
- Aging & Performance Testing: Batteries are tested under charging and discharging conditions to verify stability.
- Final Inspection: Appearance, labeling, voltage, capacity, polarity, and packaging are checked before shipment.
- Safe Packaging & Delivery: Mass Production Batteries are packed according to transportation requirements with support for UN38.3 and MSDS.
Quality Assurance
LithoTop follows strict quality management throughout the entire manufacturing process. Every battery is tested before shipment to ensure true capacity, stable voltage output, low internal resistance, safe operation, and reliable long-term performance.
Why It Matters for Customers
With strong manufacturing capability and in-house BMS development, LithoTop helps customers reduce communication costs, shorten product development time, improve production consistency, and receive more reliable customized battery solutions from prototype to mass production.
More Customer Cooperation Cases
LithoTop has successfully delivered customized lithium-ion battery pack solutions to customers in more than 30 countries. From prototype development to mass production, our engineering team helps customers solve complex power challenges across industrial, medical, robotics, and energy storage applications.
AGV & Autonomous Mobile Robots
A European AGV manufacturer required a high-capacity lithium-ion battery pack with CAN communication, stable discharge performance, and long cycle life. LithoTop developed a customized 24V battery pack with an intelligent BMS, helping improve operating time and reduce maintenance costs.
Medical Diagnostic Equipment
A medical device company needed a compact battery pack with exceptional reliability and safety for portable diagnostic equipment. LithoTop engineered a customized lithium-ion solution using Grade A cells and an in-house BMS, ensuring stable power output and consistent performance throughout the product lifecycle.
Industrial Inspection Robot
An industrial automation customer required a lightweight, high-discharge battery pack capable of supporting continuous operation in demanding environments. LithoTop provided a customized 21700 battery pack with intelligent protection, enabling longer runtime and enhanced operational efficiency.
Handling Precautions & Guidelines
Find answers to the most common questions about ordering, shipping, certifications, and working with lithotop as your battery partner.
After sample approval, all production parameters are standardized. Every production batch follows the same BOM, manufacturing process, and quality inspection procedures. Batteries undergo voltage, capacity, internal resistance, aging, and final performance testing before shipment to ensure consistency.
LithoTop provides custom lithium-ion battery packs using 15270, 14500, 18650, 21700, 26650 and other cylindrical cells. We support customized voltage, capacity, discharge current, connectors, communication protocols, housing, and BMS solutions based on your project requirements.
Yes. Our engineering team can evaluate your existing battery pack and recommend an equivalent or improved battery solution while maintaining the same dimensions, connector, communication protocol, and mechanical structure whenever possible. This helps reduce redesign costs, shorten qualification time, and ensure a smooth supplier transition.
Yes. LithoTop designs high-discharge lithium-ion battery packs with high continuous and peak discharge capability for AGVs, robots, drones, industrial automation, and power equipment. We can recommend the most suitable cell based on your power requirements.
Engineering samples are typically completed within 7–15 working days. Mass production usually requires 15–30 working days depending on battery complexity, material availability, and order quantity.
Our battery packs can support CE, RoHS, UN38.3, MSDS, IEC62133, CB, KC, and other international certifications depending on your market and application requirements.
MOQ depends on the battery configuration and customization level. We support prototype development, engineering samples, pilot production, and large-volume manufacturing to help customers throughout the product development process.
Please provide your required voltage, capacity, maximum discharge current, battery dimensions, connector type, communication requirements, operating environment, and expected application. Our engineers will recommend the most suitable battery solution.
Yes. LithoTop has an in-house BMS manufacturing facility capable of developing intelligent protection boards from 1S to 25S. We support CAN, SMBus, RS485, Bluetooth, UART, and other communication protocols.
LithoTop combines premium Grade A battery cells with our own BMS manufacturing capability, enabling us to provide complete battery solutions from a single supplier. This helps reduce communication costs, shorten development cycles, and ensure better compatibility between battery cells, protection systems, and customer applications.
Related Products
Explore more customized lithium battery solutions from LithoTop
Our Factory Insight
LithoTop operates advanced lithium battery manufacturing facilities equipped with automated production lines, precision testing equipment, and strict quality control systems. From cell selection to battery assembly and final inspection, every process is carefully managed to ensure stable performance, reliable quality, and high production efficiency. With experienced engineers and strong OEM/ODM capability, we provide customized battery solutions for customers worldwide.
Global Certifications & Compliance Support
LithoTop provides comprehensive certification support for custom lithium batteries to help customers accelerate product development and global market entry. From prototype verification to mass production, our engineering team assists with battery compliance, transportation documentation, and international safety standards, reducing certification risks and shortening your project timeline.
Industry News Insight
Stay updated with the latest lithium battery industry news, product innovations, technology insights, and application trends from LithoTop. Explore expert articles, battery guides, and industry updates to learn more about custom lithium battery solutions, energy storage, UAV batteries, wearable device batteries, and advanced power technologies.
What Is the Difference Between LiPo and Li-ion Battery Packs?
Confusion costs time, money, and reliability. I see teams argue labels. They miss the real…
The Biggest Mistake When Choosing a UAV Battery Supplier?
You ask for a price quote. The supplier sends a number. You compare three quotes…
Talk to Engineer
Get Your Factory-Direct Quote
