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This 14.8V 6400mAh battery pack is meticulously engineered for demanding applications that require sustained, reliable energy. Configured in a 4-series, 2-parallel (4S2P) arrangement, it integrates eight premium 18650 cylindrical lithium-ion cells into a highly dense, space-saving module. Measuring a compact 38mm × 38mm × 138mm, the rigid steel-shell casing provides a solid tactile feel while effortlessly sliding into constrained device compartments without adding unnecessary bulk.
Designed to deliver a continuous nominal voltage of 14.8V, this pack ensures that your equipment operates at peak efficiency without unexpected voltage drops. To guarantee long-term consistency and extended cycle life, buyers have the flexibility to specify internationally recognized cell brands—such as Samsung, LG, or Panasonic—or opt for top-tier domestic A-grade alternatives based on specific project requirements. A fully integrated Battery Management System (BMS) acts as the silent brain of the unit, continuously monitoring thermal and electrical limits to protect your valuable hardware.
Arriving pre-wired with standardized output leads and terminal connectors, the unit eliminates the need for manual soldering or secondary circuit configuration. This battery pack represents an ideal balance of energy density, consistent output power, and uncompromising safety, making it the definitive power solution for portable devices, heavy-duty tools, and advanced electronic engineering projects.
Maximized Energy Density: By utilizing advanced 18650 cells, this pack achieves a substantial 6400mAh capacity within an extremely limited footprint. This translates to fewer charging cycles and longer operational runtimes for power-hungry devices.
Consistent Voltage Delivery: The 14.8V nominal platform maintains a steady flow of power. Devices experience fewer performance dips as the battery drains, ensuring motors run smoothly and sensors read accurately until the final drop of energy is utilized.
Intelligent BMS Protection: The internal printed circuit board provides a critical layer of defense. It actively prevents overcharging, deep discharging, and excessive current draw, while mitigating thermal runaway risks during heavy loads.
Rigid Manufacturing & Quality Control: Each pack undergoes rigorous cell capacity matching and automated spot welding. The reinforced steel-shell structure is insulated and secured against vibrations, drastically reducing failure rates and ensuring reliable performance even in physically demanding environments.
Plug-and-Play Integration: Equipped with a factory-installed protection board and output terminals, the unit is ready for immediate deployment. This simplifies the installation process, reduces technical barriers, and accelerates your assembly line operations.
Sustainable Lithium Technology: Free from the memory effect that plagues older battery chemistries, these lithium-ion packs can be topped up at any charge level, offering a prolonged lifecycle and reducing overall replacement frequency.
| Battery Cell Type： | Cylindrical Lithium-ion Battery 18650 |
| Configuration: | 4 Series 2 Parallel (4S2P) |
| Nominal Voltage: | 14.8V |
| Nominal Capacity: | 6400mAh (0.2C discharge) |
| Energy: | Approximately 94.72Wh |
| Charging Voltage: | 16.8V ± 0.05V |
| Discharge Cut-off Voltage: | 10.0V (controlled by protection board) |
| Standard Charging Current: | Recommended below 0.5C (i.e., 3200mA) |
| Maximum Continuous Discharge Current: | Typically 2C (i.e., 12.8A), depending on battery cell performance |
| Dimensions (Length × Width × Height): | Approximately 138mm × 38mm × 38mm (including protection board and casing) |
| Weight: | Approximately 450g (for reference only, subject to actual product) |
| Output Wire Specifications: | Standard wires with terminals at the end (such as XT60, PH2.0, etc., customizable) |
| Protection Board Functions: | Overcharge protection, over-discharge protection, overcurrent protection, short-circuit protection, temperature protection |
| Operating Temperature: | Charging: 0°C ~ +45°C; Discharging: -20°C ~ +60°C (recommended 0°C ~ +45°C) |
| Storage Temperature： | -20°C ~ +45°C (For long-term storage, it is recommended to store in a cool, dry place, preferably in a half-charged state) |
This versatile 14.8V 6400mAh battery module serves as a dependable power foundation for a wide spectrum of demanding hardware, including:
Portable Power Tools: Delivers the necessary torque and sustained amperage for equipment like industrial drones, motorized handheld gimbals, precision electric screwdrivers, and heavy-duty hot glue guns.
Robotics and Automated Models: Acts as a dependable power source for educational robotic kits, competitive engineering robots, and remote-controlled aircraft or vehicles that require balanced weight-to-power ratios.
Professional Lighting Equipment: Provides hours of uninterrupted illumination for high-lumen searchlights, emergency backup lighting systems, and professional photographic fill lights where consistent brightness is critical.
Mobile Energy Storage Solutions: Serves as the internal core for compact outdoor power banks, enabling reliable off-grid charging for laptops, field cameras, and communication devices.
Precision Instruments: Ensures stable operation for portable medical diagnostic tools, environmental monitoring stations, and non-destructive testing equipment that cannot tolerate power fluctuations.
Custom Electronic Engineering: An adaptable, ready-to-deploy energy module for hardware developers, makers, and rapid prototyping projects requiring a safe, enclosed power solution.
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Dedicated Charging Hardware: Always utilize a balanced lithium-ion charger specifically rated for 16.8V output. Applying incompatible voltage or current will compromise the cell chemistry and permanently damage the unit.
Physical Integrity: Maintain the structural integrity of the outer casing. Avoid crushing, puncturing, or dropping the pack on hard surfaces, which could rupture the internal cells and cause thermal events.
Environmental Operating Limits: Keep the module away from extreme ambient conditions. Prolonged exposure to direct sunlight, enclosed vehicle interiors during summer, or highly corrosive, moisture-heavy environments will degrade performance.
Terminal Isolation: Prevent the positive and negative leads from crossing. When the unit is disconnected from a load, apply insulating caps or tape to the exposed terminals to avoid accidental short circuits against metal surfaces.
Polarity Verification: Double-check wiring alignments prior to integration. Reversing the positive and negative connections will instantly bypass protective circuits and severely damage both the battery and the host device.
Emergency Anomaly Handling: If you detect an unusual chemical odor, rapid exterior swelling, or excessive heat generation during operation, disconnect the load immediately. Isolate the pack in a fire-safe, ventilated area and consult technical support.
Long-Term Storage Protocols: For extended downtime, discharge or charge the pack to approximately 50% capacity. Store it in a climate-controlled, dry facility, and perform a maintenance charge every three months to prevent deep-discharge degradation.
We provide comprehensive manufacturing and logistical support tailored to your project requirements:
Comprehensive OEM & ODM Services: We tailor every aspect of the battery pack to your exact specifications. From selecting specific cell brands and adjusting BMS protection thresholds to modifying output wiring and terminal connectors, we ensure seamless integration into your proprietary hardware.
Global Compliance & Certifications: Navigating international hazardous material shipping is effortless. Our battery packs are backed by rigorous testing and carry UN38.3, CE, RoHS, and MSDS certifications, guaranteeing safe, legal, and unrestricted cross-border transit.
Flexible Order Volumes & Warranty: We support agile procurement strategies with adaptable Minimum Order Quantities (MOQs). Coupled with a comprehensive warranty extending beyond 12 months, we minimize your initial trial risks and provide long-term operational peace of mind.
Streamlined Logistics & Lead Times: Benefit from rapid sample prototyping and predictable mass-production schedules. We leverage established lithium battery logistics networks, including access to overseas distribution hubs like EU tax-free warehouses, to accelerate delivery times and optimize freight costs.
A1: No, a standard 12V adapter is insufficient. This 4-series configuration reaches a full charge at 16.8V. You must employ a dedicated 16.8V balanced charger designed specifically for lithium-ion chemistries. Undercharging with a 12V source will leave the cells largely depleted and disrupt the internal balancing process.
A2: The BMS acts as the active monitoring hub. It continuously tracks the voltage, current flow, and thermal output of the individual cells. If it detects parameters exceeding safe thresholds—such as an external short circuit or a stalled motor drawing excessive current—it instantly severs the connection to protect both the battery module and your equipment.
A3: Like all lithium-based energy storage, capacity naturally diminishes over time. However, under optimal operating conditions—avoiding extreme temperatures and preventing complete 0% discharges—this pack reliably delivers over 500 full charge cycles while retaining more than 80% of its original capacity. For most applications, this equates to 2 to 5 years of dependable service.
A4: We strongly discourage manual modifications to the wiring or terminals. Applying soldering heat directly to the leads can transfer damaging temperatures to the BMS or internal cells, introducing severe safety risks. If your project requires a specific connector (e.g., XT60, Anderson, or customized JST), please utilize our OEM customization services prior to ordering.
A5: While technically feasible, combining packs requires strict electrical matching and professional engineering oversight. Connecting packs with differing charge states, internal resistances, or age profiles will cause aggressive cross-charging, leading to rapid failure and thermal hazards. We highly recommend requesting a custom-built, higher-capacity pack rather than linking individual modules.
A6: A standard multimeter can provide a baseline reading; an open-circuit voltage near 16.8V indicates a full charge, while readings approaching 10.8V signal a depleted state. However, voltage curves for lithium-ion cells are non-linear. For precise monitoring, we advise integrating a coulomb counter or a dedicated battery fuel gauge into your device's circuitry.
