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Engineered for precision and endurance, this high-performance cylindrical lithium-ion battery (model 14430) is specifically designed to meet the rigorous demands of modern portable electronics. Measuring precisely 14.2mm in diameter and 47.5mm in height, the cell features a smooth, industrially sealed heat-shrink casing that ensures an impeccable fit within compact device enclosures. Utilizing advanced lithium-ion cell chemistry, the standard configuration features a highly efficient 1-series 1-parallel (1S1P) structure. Delivering a stable nominal voltage of 3.7V and a typical capacity of up to 920mAh, this power module provides superior energy density to keep motorized devices running at peak performance for extended periods.
To guarantee safe and convenient integration into your manufacturing workflow, the battery incorporates a premium intelligent protection circuit board (PCB). This micro-engineered Battery Management System (BMS) effectively intercepts overcharging, over-discharging, short circuits, and overcurrent scenarios within milliseconds, maximizing end-user safety and prolonging the device's operational lifespan. Arriving standard with pre-soldered connecting wires and precision-crimped terminals, this battery allows assembly lines to connect and deploy it directly out of the box. This tactile, plug-and-play architecture significantly simplifies the internal routing and installation process, making it an ideal built-in power solution for electric shavers, sonic toothbrushes, and a wide array of specialized portable equipment.
Intelligent BMS Protection: The built-in industrial-grade intelligent protection board provides multiple circuit safeguards, ensuring the battery automatically shuts off in abnormal situations. This millisecond-level interception of overcurrent or short circuits guarantees absolute safety during daily operation.
Optimized Energy Density: Utilizing high-purity battery cell materials, it delivers a robust capacity of up to 920mAh within a highly compact 14430 footprint, ensuring long-lasting, fade-free power for high-drain motors in personal care devices.
Rigorous Quality Control & Reliability: Stable voltage output, low self-discharge rate, and long storage life are guaranteed through strict high and low-temperature aging, charge-discharge cycling, and drop tests. This ensures exceptional performance consistency and an extremely low defect rate during mass production.
Plug-and-Play Customization: The protection board is pre-soldered and wired with terminals at the factory. We offer flexible OEM/ODM customization for wire harness lengths and terminal models (such as PH2.0, JST, etc.), eliminating the need for secondary processing and dramatically shortening your product development cycle.
Extended Cycle Life: Under standard operating conditions, the optimized internal chemistry provides hundreds of stable charge and discharge cycles, making it a highly economical and durable component that outlasts standard consumer alternatives.
Global Compliance & Eco-Friendly: Manufactured with environmentally responsible materials, the battery fully complies with CE, RoHS, UN38.3, and MSDS international directives. This comprehensive certification ensures green safety and guarantees worry-free cross-border logistics and global trade distribution.
| Model： | Cylindrical Lithium-ion Battery 14430 |
| Nominal Voltage: | 3.7V |
| Nominal Capacity: | 920mAh (0.2C discharge) |
| Internal Resistance: | ≤ 80mΩ (including protection board) |
| Charging Voltage: | 4.2V ± 0.05V |
| Standard Charging Current: | 0.2C (approx. 184mA) |
| Maximum Charging Current： | 0.5C (approx. 460mA) |
| Standard Discharge Current: | 0.2C (approx. 184mA) |
| Maximum Continuous Discharge Current: | 1.0C (approx. 920mA, limited by protection board) |
| Discharge Cut-off Voltage: | 3.0V (protection board activated) |
| Product Dimensions (approx.): | Diameter: 14.2mm, Height: approx. 47.5mm (including protection board and terminals) |
| Weight (approx.): | 18g |
| Cell Configuration： | 1 series 1 parallel (1S1P) |
| Protection Functions: | Overcharge, over-discharge, short circuit, overcurrent protection |
| Interface: | Customized wires and terminals (common types such as PH2.0, JST, etc., can be customized as needed) |
| Operating Temperature: | Charging: 0℃ ~ +45℃ / Discharging: -20℃ ~ +60℃ |
| Storage Temperature: | -20℃ ~ +45℃ (recommended to store in a half-charged state) |
This 14430 lithium-ion cell is meticulously engineered to serve as the primary power engine for a diverse array of compact electronic devices. It perfectly matches the internal battery compartments of mainstream electric shavers and sonic toothbrushes, supporting standardized drop-in replacements and immediate product performance upgrades. Beyond personal care, its lightweight footprint and highly reliable energy output make it indispensable for the following sectors:
Portable lighting equipment: Delivers sustained current for high-powered flashlights, tactical headlamps, and dependable emergency lights.
Smart home products: Provides long-lasting, low-maintenance energy for wireless sensors, smart door locks, and automated remote controls.
Digital electronic products: Powers the continuous operation of portable fans, voice recorders, digital photo frames, and precise GPS trackers.
Medical and health equipment: Ensures accurate, uninterrupted readings for electronic thermometers, portable monitors, and therapeutic massagers.
Industrial instruments and meters: Acts as a rugged power source for handheld terminals, data collectors, and precision measuring tools in demanding environments.
Communication equipment: Serves as a vital energy reservoir for walkie-talkies and acts as backup power for critical wireless modules.
Toys and models: Drives the dynamic movements of remote-controlled toys and agile small robots with consistent voltage delivery.
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Charging Requirements: Please use a charger specifically designed for lithium-ion/lithium iron phosphate batteries, strictly adhering to an output voltage of 4.2V and utilizing a constant current/constant voltage (CC/CV) charging profile. Using lead-acid battery chargers or other incompatible types is strictly prohibited and may cause irreversible damage.
Prohibited Actions: To maintain structural and chemical integrity, do not reverse charge, forcibly over-discharge, short-circuit, disassemble, puncture, throw into fire, or immerse the battery in water or any other liquids. Avoid using and charging the battery in environments with extremely high or freezing temperatures.
Installation and Use: Pay close attention to the polarity of the wires during installation to prevent reverse connection, which could trigger the protection board or damage the host device. Avoid subjecting the battery casing to severe impact or compression. Ensure that the device's designed peak discharge current does not exceed the battery's maximum continuous discharge current of 1.0C.
Storage and Transportation: For long-term storage (exceeding 3 months), maintain the charge level between 30% and 60% and store the units in a cool, dry, well-ventilated facility. Transportation protocols must strictly comply with local and international regulations regarding the safe transit of lithium-ion batteries.
Disposal: After the battery's operational lifespan concludes, do not dispose of it in standard waste streams. It must be recycled responsibly according to local environmental regulations to recover valuable materials and prevent ecological harm.
A1: No, it cannot be charged directly from a raw 5V USB source. This product is a standard 3.7V lithium battery and requires a dedicated 4.2V lithium battery charging management circuit or an external charger. If your product design requires USB charging functionality, a corresponding charging management module (such as a TP4056 chip) needs to be integrated into the device's mainboard.
A2: The protection board acts as the active safety guardian of the battery cell. Its primary functions include: instantly cutting off the charging input when the cell voltage exceeds approximately 4.25V (overcharge protection); halting discharge when the voltage drops below the critical threshold of 2.5V-3.0V (over-discharge protection); and rapidly disconnecting the circuit within milliseconds when the discharge current spikes abnormally or a short circuit is detected (overcurrent/short circuit protection).
A3: The designation "1 series" indicates the use of one single battery cell, providing a baseline 3.7V voltage. "1 parallel" signifies that no additional cells are connected alongside it to multiply the capacity. Therefore, a "1S1P" architecture means it is a standalone single-cell power unit delivering a voltage of 3.7V and a total capacity equal to that of the individual cell (920mAh). Expanding this configuration by placing multiple cells in parallel would increase overall capacity, while placing them in series would multiply the voltage output.
A4: A battery is generally considered at the end of its viable lifecycle when its runtime after a full charge cycle becomes significantly shorter than its original state (typically retaining less than 60% of the nominal 920mAh capacity). Additional physical and electrical indicators include an abnormally fast charging speed, visible bulging of the cylindrical casing, an extremely low output voltage that fails to recover, or an inability to accept a charge altogether. In such instances, it is highly recommended to cease operation and replace the unit immediately.
A5: Absolutely. We provide comprehensive customization services tailored to your specific assembly requirements. This includes modifying the wire length, adjusting the wire gauge (AWG) to handle specific current loads, and fitting precise terminal models (such as JST, MOLEX, TE series, and PH2.0). Please specify your exact dimensional and connectivity requirements when submitting an inquiry or placing a volume order.
Backed by mature, fully automated battery assembly production lines, we are equipped to support flexible Minimum Order Quantities (MOQ) alongside consistently stable lead times for high-volume manufacturing runs. This highly efficient supply chain model significantly reduces inventory pressure and time-to-market costs for procurement departments. By leveraging our comprehensive OEM/ODM capabilities, device developers can ensure that every 14430 battery module integrates flawlessly into their specific product architecture, eliminating the need for costly secondary processing and accelerating the overall production cycle from blueprint to final assembly.
Disclaimer: The above parameters are typical values and may vary slightly due to batch and production environment differences. Please refer to the actual product specifications. Please ensure you fully understand the safety guidelines for using lithium batteries before use.
