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The 14500 3.7V 1200mAh Rechargeable Battery Pack is designed for electronic devices that require stable voltage output, reliable capacity, and easy integration into limited internal space. With a 3.7V nominal voltage and 1200mAh capacity, this battery pack is suitable for smart locks, IoT sensors, handheld devices, LED products, portable medical electronics, smart home devices, and custom rechargeable equipment.
As a professional custom lithium battery manufacturer, LithoTop provides OEM/ODM 14500 rechargeable battery pack solutions with customized PCM protection, connectors, wire lengths, NTC, labels, insulation structure, shrink wrap, casing, and packaging.
| Product Type | Lithium Ion Battery Pack |
|---|---|
| Model number | 14500 |
| Voltage (Nominal) | 3.7V |
| Capacity (Nominal) | 1200mAh |
| Dimensions | Max. 14.5*53mm |
| Constant Discharge Current | Std. 1C, Max. 3C |
| Working Temperature | -20°C~60°C |
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 14500 3.7V 1200mAh rechargeable battery pack is designed for compact products that need a reliable cylindrical lithium-ion power source. Compared with disposable AA-size batteries, a rechargeable 14500 lithium-ion battery pack provides higher voltage, reusable performance, and flexible customization for modern electronic devices.
With 1200mAh capacity, this battery pack offers longer runtime than lower-capacity 14500 packs while maintaining a compact cylindrical structure. It is a practical solution for product developers who need dependable rechargeable power in tubular housings, narrow handles, compact sensor enclosures, or small portable devices.
LithoTop applies strict production control during cell selection, voltage testing, capacity verification, internal resistance inspection, PCM assembly, spot welding, aging verification, and final quality inspection. These processes help ensure stable performance, reliable protection, and consistent mass production quality.


LithoTop offers a complete range of cylindrical lithium-ion cells to meet different power, capacity, and performance requirements. Our engineering team helps customers select the most suitable cell based on energy density, discharge current, cycle life, and application environment.
| Cell Type | Typical Capacity | Key Advantages | Typical Applications |
|---|---|---|---|
| 14500 | 600–1200mAh | Compact size, lightweight | Portable electronics, medical devices, flashlights |
| 18650 | 1800–3500mAh | Cost-effective, mature technology | Robotics, IoT devices, industrial equipment |
| 21700 | 4000–6000mAh | Higher capacity and energy density | AGVs, energy storage, power tools, e-mobility |
| 26650 | 3000–6000mAh | High discharge capability | Industrial equipment, backup power systems |

Every application has unique power requirements. At LithoTop, we provide complete custom lithium-ion battery pack solutions designed around your product’s voltage, capacity, size, discharge rate, connector type. Whether you need a single cylindrical cell or a fully assembled battery pack, our engineering team can customize every component to perfectly match your device.
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.

LithoTop provides professional custom 14500 lithium-ion battery pack solutions for compact electronic devices requiring reliable power in limited installation space. Based on high-quality 14500 cylindrical Li-ion cells, we can develop single-cell, parallel, and series battery configurations with customized capacity, voltage, protection circuits, connectors, and packaging to match your device requirements.
Our 14500 battery packs can be customized in configurations such as 1S1P, 1S2P, 1S3P, 1S4P, 2S1P, 2S2P, 3S1P, and other series-parallel designs. Depending on the project, LithoTop can integrate PCB/PCM protection, BMS, NTC, wire harnesses, connectors, USB-C charging interfaces, heat-shrink packaging, and customized housings into a complete ready-to-use battery solution.
For device integration, we support a wide range of connector options including JST, Molex, PH, XH, SM, DC connectors, and other customer-specified interfaces. Wire length, wire gauge, connector polarity, charging interface, battery dimensions, labels, and packaging can all be customized according to your product design.
Each custom 14500 battery pack can incorporate essential protection functions including overcharge, over-discharge, over-current, and short-circuit protection. From cell selection and matching to welding, PCB assembly, insulation, aging, and final inspection, LithoTop applies strict quality control to ensure stable performance, reliable safety, consistent capacity, and long cycle life.
With its compact cylindrical structure and flexible pack configuration, the rechargeable 14500 battery pack is an excellent power solution for portable electronics, medical devices, IoT equipment, smart sensors, security devices, handheld instruments, lighting products, and other space-constrained applications.
Discover how we helps global customers solve real-world battery challenges through customized lithium battery solutions.
A French industrial tools company was developing a compact rechargeable LED inspection light for electricians, maintenance teams, and workshop users. The product needed to provide stable brightness, long standby performance, and easy charging while fitting inside a slim tubular handle. Their previous battery solution could fit the handle, but runtime was not strong enough for professional use.
The customer contacted LithoTop because they needed a compact cylindrical rechargeable battery pack with better capacity and reliable assembly quality. LithoTop reviewed the LED power consumption, brightness mode settings, charging circuit, handle diameter, cable routing, and target working time.
After evaluation, LithoTop recommended the 14500 3.7V 1200mAh Rechargeable Battery Pack. Our engineering team judged that the 14500 cylindrical format matched the customer’s tubular product structure, while the 1200mAh capacity provided improved runtime without increasing the handle size.
During sample development, LithoTop optimized the PCM protection design, wire length, connector position, insulation sleeve, and label size to match the customer’s assembly process. Sample batteries were tested through LED runtime simulation, brightness stability testing, charging compatibility checking, temperature monitoring, storage testing, and installation fit verification.
Before mass production, both teams confirmed samples, pack dimensions, connector specifications, PCM protection parameters, labeling details, packaging method, and batch inspection standards. The final battery solution helped the inspection light deliver longer working time and more stable brightness. For the customer, this improved product reliability and strengthened its position in the professional tool market.
A German smart home company was developing a compact water leakage sensor for kitchens, bathrooms, and equipment rooms. The device required stable standby power, periodic wireless communication, and instant alarm activation when water was detected. The customer wanted a rechargeable battery pack that could fit inside a narrow cylindrical sensor enclosure.
The customer approached LithoTop after testing several battery options that were either too large or unable to maintain stable voltage during alarm transmission. They needed a battery manufacturer that could evaluate standby current, wireless current peaks, charging design, and mechanical integration together.
LithoTop analyzed the sensor’s standby current, alarm current, wireless transmission peak, charging circuit, enclosure diameter, connector position, and expected usage cycle. Based on this evaluation, LithoTop recommended the 14500 3.7V 1200mAh rechargeable battery pack.
During prototype development, LithoTop adjusted the PCM layout, wire outlet direction, connector type, insulation structure, and packaging method to match the customer’s assembly process. Sample batteries were tested through standby simulation, wireless alarm pulse testing, voltage stability checking, charge-discharge cycling, storage testing, and installation fit evaluation.
Before mass production, the customer confirmed approved sample performance, connector durability, battery dimensions, packaging details, and incoming inspection standards. LithoTop then controlled production according to the confirmed golden sample.
The final battery pack helped the leakage sensor maintain stable operation during standby and alarm events. For the customer, this improved field reliability, reduced battery-related service issues, and made the smart home sensor easier to deploy in residential and commercial projects.
A reliable 14500 rechargeable battery pack requires more than selecting a cylindrical cell. Battery performance depends on cell quality, capacity consistency, internal resistance control, PCM protection design, spot welding quality, insulation protection, connector reliability, and final aging inspection.
LithoTop supports customers from sample development to mass production with Grade-A cell sourcing, customized protection circuit design, strict quality inspection, and flexible OEM/ODM assembly. Our engineering team can help evaluate working current, charging method, installation space, connector type, cable direction, protection requirements, and real application conditions before confirming the final battery solution.

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.
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.
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.
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.
Before battery pack assembly, cells are carefully matched by voltage, capacity, and internal resistance to improve battery consistency, safety, and cycle life.
We use professional spot welding and nickel strip connection processes to ensure strong electrical conductivity, low resistance, and stable high-current performance.
During production, our quality team monitors key processes including welding quality, PCM/BMS connection, insulation, voltage consistency, appearance, and structural assembly.
Each battery undergoes voltage testing, internal resistance testing, capacity testing, charge/discharge testing, aging tests, and final inspection before shipment.
LithoTop supports customized voltage, capacity, battery structure, discharge current, connectors, wire length, housing, labels, packaging, and communication protocols.
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.
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.
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.



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.
Explore more customized lithium battery solutions from LithoTop








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.
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.
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.
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