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Engineered specifically for demanding hardware ecosystems, this 3.7V 16340 cylindrical lithium-ion rechargeable battery delivers a consistent 700mAh capacity. Enclosed in a precisely rolled, smooth steel casing, the unit feels solid and structurally sound, weighing a mere 18 grams. The external PVC shrink wrap provides a tactile, insulated grip while protecting the internal 1S1P cell configuration. Designed to replace standard CR123A units in rechargeable setups, this power source integrates a built-in safety protection circuit board (PCB) that regulates voltage with absolute precision. Hardware engineers will appreciate the pre-soldered leads and customizable terminals, which eliminate secondary processing steps during PCBA assembly. By transitioning to this rechargeable solution, procurement teams can significantly lower long-term maintenance expenses and reduce environmental waste while ensuring their devices remain powered for extended durations.
Every single unit undergoes meticulous cell capacity grading and impedance matching before leaving the facility. Our strict factory inspection protocols guarantee a zero-scratch exterior, zero leakage, and consistently low internal resistance, ensuring absolute batch-to-batch uniformity for large-scale procurement.
We understand that different hardware layouts require specific wiring configurations. Our flexible manufacturing lines support deep customization of wire lengths and terminal types—including standard JST, Molex, and PH2.0 connectors. With low minimum order quantities (MOQ) and rapid prototyping services, we meet the agile development timelines of complex hardware projects.
Navigating cross-border logistics is effortless. These power units are fully certified under UN38.3, MSDS, CE, and RoHS directives, eliminating air and sea freight barriers and ensuring global procurement compliance.
Backed by scaled manufacturing capabilities, we offer predictable lead times and comprehensive post-sales technical support, providing procurement managers with long-term supply chain security.
The physical architecture features a standardized positive terminal design, meticulously engineered to fit within strict PCB dimensional limits. The rich library of pre-soldered terminal specifications ensures perfect physical compatibility with target device PCBAs.
| Model： | 16340 (Diameter 16mm, Height 34.0mm) |
| Nominal Voltage: | 3.7V |
| Full Charge Voltage: | 4.2V (±0.05V) |
| Cut-off Voltage: | 2.5V (Controlled by protection board) |
| Nominal Capacity: | 700mAh (Measured under 0.2C discharge conditions) |
| Internal Resistance: | ≤80mΩ (Including protection board) |
| Cell Configuration： | 1 series 1 parallel (1S1P) |
| Charging Method: | CC/CV (Constant Current/Constant Voltage, recommended to use a dedicated lithium-ion battery charger) |
| Standard Charging Current: | 0.5C (approximately 350mA) |
| Maximum Charging Current: | 1C (700mA) |
| Standard Discharge Current: | 0.5C (350mA) |
| Maximum Continuous Discharge Current: | 1.5C (1050mA, limited by protection board) |
| Operating Temperature： | Charging: 0°C ~ +45°C / Discharging: -20°C ~ +60°C |
| Storage Temperature: | -20°C ~ +45°C (Recommended to store in a cool, dry place) |
| Protection Functions: | Overcharge, over-discharge, short circuit, overcurrent protection |
| Wiring Configuration: | Standard with insulated wires, length and terminal type can be customized (e.g., red and black wires, 50mm long, PH2.0 terminal) |
| Weight: | Approximately 18g (including protection board and leads) |
Extensive laboratory testing validates the stability of this power source. Detailed charge and discharge characteristic curves demonstrate a remarkably flat voltage plateau even under 0.5C constant current loads. Furthermore, cycle life charts indicate minimal capacity degradation after 500 cycles, providing hardware engineers with hard technical data for accurate component evaluation.
This compact 16340 power module is engineered for specialized professional environments, delivering concentrated energy where space is at a premium.
Ensures uninterrupted transaction processing with stable voltage output, preventing critical data loss during mobile payment scenarios in retail environments.
Delivers clean, reliable energy for sound level meters, rangefinders, and handheld diagnostics where precision and consistent power delivery are non-negotiable.
Provides a long-lasting power foundation for remote wireless sensors and smart door locks, minimizing maintenance intervals in hard-to-reach industrial locations.
Powers high-drain tactical flashlights, laser pointers, and model aircraft receivers safely, supported by the integrated overcurrent protection mechanism.
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Charging Protocol: Mandate the use of CC/CV smart chargers specifically calibrated for 3.7V lithium-ion chemistry. Utilizing incompatible equipment risks thermal events and compromises cell integrity.
Assembly Line Handling: During PCBA integration, operators must avoid exerting excessive mechanical stress on the pre-soldered leads. Ensure correct polarity (red wire generally positive +) and secure the unit firmly without compressing the internal structure.
Thermal Management: Restrict operational environments to the specified thermal parameters. Charging must occur between 0°C and +45°C, while discharging is safe between -20°C and +60°C to prevent irreversible chemical degradation.
Storage & Inventory: For long-term warehousing, never store the units fully depleted. Maintain a 50%-60% state of charge (approximately 3.7V-3.8V) in a climate-controlled, dry facility. Conduct routine voltage audits every three months.
Short Circuit Prevention: Implement strict anti-static and isolation protocols on the assembly floor. Prevent any direct contact between the positive and negative terminals and metallic objects.
Q1: Can this 16340 unit serve as a direct drop-in replacement for standard CR123A cells?
A1: Physically, the dimensions align perfectly. However, engineering teams must verify voltage compatibility. The CR123A is a primary 3V cell, whereas this rechargeable lithium-ion unit operates at a nominal 3.7V (peaking at 4.2V). The target hardware must support this elevated voltage range to prevent circuit damage.
Q2: What customization options are available for specialized projects?
A2: We offer extensive flexible manufacturing services. Procurement teams can specify exact wire gauges, lengths, and terminal connectors (such as JST-XH, Molex, or PH2.0). We accommodate agile development with low minimum order quantities and rapid prototyping services.
Q3: How does the built-in protection board (PCB) function during operation?
A3: The integrated intelligent PCB acts as a critical safeguard. It actively monitors voltage and current, automatically severing the circuit if it detects overcharging (above 4.25V), over-discharging (below 2.5V), or external short circuits, thereby ensuring absolute safety during both operation and charging cycles.
Q4: What is the recommended inventory management strategy for these units?
A4: To preserve chemical integrity during extended warehousing, never store the units fully depleted. Maintain a 50% charge (around 3.7V) and keep the ambient temperature cool and dry. We recommend a routine voltage audit every three to four months for optimal lifecycle retention.
Summary: This 16340 cylindrical lithium battery (700mAh, with integrated PCB) represents a meticulously engineered, ready-to-deploy power solution. Whether upgrading existing hardware or integrating into new electronic designs, it delivers consistent energy. Strict adherence to the outlined safety and handling guidelines will maximize performance and operational lifespan.
