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Engineered specifically for interactive audio equipment, this 14500 cylindrical lithium-ion power module provides a dependable energy foundation for story-telling devices and portable electronics. Encased in a smooth, industrial-grade steel cylinder, the unit measures precisely 14mm in diameter and 50mm in height. Delivering a nominal voltage of 3.7V and a verified capacity of 1000mAh, it ensures sustained, uninterrupted audio playback and reliable motor operation without adding unnecessary bulk to your final product design.
The core advantage of this power cell lies in its integrated intelligent protection circuit board (IC + MOSFET) and tactile, pre-stripped silicone insulated wires. This configuration eliminates the need for manual soldering on the assembly line, drastically streamlining the manufacturing process for equipment integrators. We actively support the entire product lifecycle, providing flexible solutions that range from small-batch engineering prototyping runs to consistent, large-scale bulk supply, ensuring every production batch meets strict performance tolerances.
Optimized Capacity Density: Packs a robust 1000mAh capacity within the standard 14500 physical footprint, offering extended operational runtime for story-telling modules and reducing the frequency of recharging.
Advanced Safety Circuitry: The built-in IC and MOSFET protection board acts as a precise gatekeeper, delivering four-fold defense against overcharging, deep discharging, short circuits, and overcurrent events to guarantee end-user safety.
Customizable Plug-and-Play Integration: Pre-installed with pliable 22AWG silicone wires and adaptable terminals. We offer extensive customization services, including specific wire lengths, connector types (such as PH2.0 or JST), and tailored battery pack configurations to match exact spatial constraints.
Consistent Discharge Profile: Utilizes premium lithium-ion chemistry to maintain a steady voltage platform, preventing audio distortion or sudden shut-offs during peak load demands.
Extended Cycle Durability: Retains strong charge capacity even after enduring over 500 standard charge and discharge cycles, minimizing maintenance requirements and enhancing the overall lifespan of the host equipment.
Global Compliance & Certifications: Fully certified to meet rigorous international standards, including CE, RoHS, UL, UN38.3, and MSDS. This ensures smooth cross-border logistics and guarantees your final products meet regional regulatory requirements.
| Model: | Cylindrical Lithium-ion Battery 14500 |
| Nominal Voltage: | 3.7V |
| Nominal Capacity: | 1000mAh (Tested with 0.2C discharge) |
| Charging Voltage: | 4.2V ± 0.05V |
| Discharge Cut-off Voltage: | 2.5V (The protection circuit will activate earlier, usually cutting off at around 3.0V) |
| Standard Charging Current: | 0.5C (approximately 500mA) |
| Maximum Charging Current: | 1C (1000mA) |
| Standard Discharge Current: | 0.5C (approximately 500mA) |
| Maximum Continuous Discharge Current: | 1C (1000mA) |
| Internal Resistance: | ≤ 80mΩ (including protection circuit) |
| Dimensions (Diameter × Length): | Approximately Φ14.2mm × 50.2mm (including protection circuit, excluding terminal wires) |
| Wire Specifications: | Standard 22AWG silicone wire, approximately 10cm long, with terminals |
| Protection Functions: | Overcharge, over-discharge, short circuit, overcurrent protection |
| Battery Casing: | None |
| Weight: | Approximately 22g (including protection circuit and wires) |
| Operating Temperature: | Charging: 0℃ ~ +45℃ / Discharging: -20℃ ~ +60℃ |
This 14500 lithium power module is engineered to provide dependable, space-efficient energy for a diverse array of demanding applications. To accelerate your development cycles, we provide comprehensive technical integration support, supplying your engineering team with detailed specification sheets, precise discharge curves, and step-by-step installation guides.
Educational & Audio Devices: Serves as the primary power source for interactive story-telling devices, reading pens, and portable audio players, ensuring clear and uninterrupted sound delivery.
Portable Illumination: Delivers sustained current for tactical flashlights, headlamps, camping lanterns, and emergency lighting systems requiring a compact energy footprint.
Digital & Consumer Electronics: Integrates effortlessly into mini cooling fans, portable speaker units, handheld GPS navigators, and motorized recreational toys.
Prototyping & Robotics: An excellent standardized power unit for Arduino and Raspberry Pi maker projects, miniature drones, and robotic assemblies.
Precision Instruments: Powers laser distance meters, environmental detectors, and specialized scanning tools with minimal voltage fluctuation.
Communication Hardware: Acts as a reliable energy reservoir for two-way radios, walkie-talkies, and wireless microphone transmitters.
Charging Specifications: Exclusively utilize chargers calibrated for 4.2V cutoff lithium-ion or polymer chemistries. Connecting this cell to lead-acid or nickel-metal hydride (Ni-MH) chargers will cause irreversible chemical degradation.
Handling Prohibitions: Maintain the structural integrity of the cylindrical casing. Do not crush, puncture, disassemble, or expose the cell to open flames. Always verify polarities to avoid reverse charging.
Thermal Management: Operate strictly within specified thermal limits. Avoid charging in freezing conditions (below 0℃) or discharging in extreme cold (below -20℃). Sustained exposure to environments exceeding 60℃ compromises internal safety mechanisms.
Storage & Logistics: For extended warehousing exceeding three months, maintain a partial charge state of 30%-60% (approximately 3.6V-3.8V) in a climate-controlled facility. All our bulk shipments utilize specialized anti-static and explosion-proof packaging, fully conforming to international aviation and maritime dangerous goods standards.
System Compatibility & Disposal: Verify voltage and dimensional constraints before integration. If configuring multi-cell arrays, ensure identical internal resistance and capacity metrics. We also provide detailed environmental disposal guidelines to help clients meet local lithium recycling mandates.
Terminal Integrity: The pre-soldered joints are insulated but sensitive to mechanical stress. Handle the pliable silicone wires gently; avoid pulling forcefully or creating sharp bends near the terminal base to prevent internal connection fractures.
A1: Absolutely not. While physically similar in diameter, standard AA batteries operate at 1.5V (alkaline) or 1.2V (Ni-MH). This lithium cell delivers a nominal 3.7V, peaking at 4.2V when fully saturated. Inserting this into a standard AA slot will immediately overload and permanently damage the circuit board of your device. Always verify that the equipment explicitly requires a 14500 3.7V lithium battery.
A2: The integrated circuit acts as an autonomous safety mechanism to protect both the cell and the host device.
Overcharge Defense: Halts incoming current when the threshold of 4.25V-4.3V is breached, preventing thermal events.
Over-discharge Shield: Severs the connection if voltage plummets below 2.5V-3.0V, preserving the cell's long-term capacity retention.
Short-circuit Prevention: Detects abnormal current spikes from accidental positive-negative contact and instantly breaks the circuit.
Overcurrent Regulation: Limits excessive draw (e.g., above 2-3A) that could stress the internal chemistry during heavy operation.
A3: Integration requires a dedicated 4.2V constant-current/constant-voltage (CC/CV) lithium charging module. Securely route the red wire to the positive terminal (+) and the black wire to the negative terminal (-). We recommend a gentle 0.5C charge rate (500mA), which replenishes the 1000mAh capacity in approximately 2 to 2.5 hours. Avoid rapid chargers that exceed the 1C limit.
A4: Yes, but this demands rigorous engineering oversight. Series configurations multiply voltage (e.g., two units yield 7.4V), while parallel setups multiply capacity (e.g., 2000mAh). Every cell in the array must be meticulously matched for internal resistance and voltage. Furthermore, multi-cell packs require dedicated balancing management systems. We offer custom pack assembly services to eliminate these complex engineering hurdles for your team.
A5: Not necessarily. Extended dormancy causes natural voltage depletion, eventually triggering the protection board's sleep mode to prevent deep-discharge damage. Professional charging equipment with an activation feature can apply a micro-current to gently elevate the voltage above the 3.0V threshold, disengaging the lock. If the cell remains unresponsive after activation attempts, the internal chemistry has degraded, and the unit must be properly recycled.
A6: We stand behind our energy solutions with a comprehensive 1-to-2-year warranty policy, depending on the specific application environment. Procurement teams benefit from our dedicated technical support engineers, who are available to assist with integration troubleshooting, performance analysis, and customized design adjustments. This ensures a reliable, risk-free purchasing experience from initial testing to widespread market deployment.
