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This product is a standardized battery pack assembled using high-quality cylindrical lithium-ion cells (model 18650). It utilizes an advanced 4-series 2-parallel (4S2P) connection method, combining eight individual cells with a capacity of 3200mAh each through a precise manufacturing process. The battery pack has a nominal output voltage of 14.8V and a nominal capacity of 6400mAh, offering high energy density. The product features a compact design, with dimensions of only 38*38*68mm, making it easy to integrate into various devices. The battery pack includes an integrated smart protection board (PCB) and standard wiring and terminals, eliminating the need for users to assemble or solder, ensuring safety and reliability, and allowing for immediate use. This greatly simplifies your product development and manufacturing processes.
Product Advantage
Exceptional Safety: Built-in multi-layer protection board with overcharge, over-discharge, overcurrent, short-circuit, and temperature protection functions, safeguarding the battery cells throughout their operation and effectively preventing accidental risks.
High Performance and Long Battery Life: Utilizes top-tier power/capacity type 18650 battery cells, providing a capacity of up to 6400mAh and a stable 14.8V voltage output, ensuring long-lasting and powerful operation of your device.
Compact and Robust Design: All-metal casing or high-strength flame-retardant plastic packaging (customizable upon request), with a robust structure and excellent heat dissipation. Precise dimensions (38*38*68mm) allow for flexible integration into compact devices.
Ready-to-Use and Reliable: All battery cells are assembled, spot-welded, and equipped with protection boards and aging tested before leaving the factory, ensuring consistent performance and providing a stable power output, reducing your R&D time and quality control risks.
Technical Parameters
| 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 94.7Wh |
| Dimensions: | Approximately 38mm (width) × 38mm (thickness) × 68mm (length) |
| Charging Voltage: | 16.8V (±0.05V) |
| Discharge Cut-off Voltage： | 10.0V (controlled by protection board) |
| Standard Charging Current： | 0.5C (approximately 3.2A) |
| Maximum Continuous Discharge Current: | Typically 10A (depending on cell performance, please refer to the specifications) |
| Protection Functions: | Overcharge, over-discharge, overcurrent, short circuit, temperature protection |
| Output Method: | Standard wires and terminals (common types such as PH2.0, XT30, etc., customizable) |
| Standard Discharge Current: | Charging: 0°C ~ +45°C / Discharging: -20°C ~ +60°C |
| Storage Temperature: | -20°C ~ +45°C (recommended to store with 50% charge for long-term storage) |
Product Uses
This product is suitable for various portable devices and projects requiring 12V-18V DC power, moderate capacity, and compact size, such as:
Drones and model aircraft: Providing high-power propulsion for aircraft.
Portable instruments and meters: Such as laser rangefinders and outdoor testing equipment.
Robots/AGV carts: Serving as the core power source for mobile platforms.
DIY projects and maker creations: Such as power tools, small robots, and creative lighting fixtures.
Backup power and emergency equipment: Providing backup power for specific circuits.
Specialized lighting: Such as high-powered flashlights and photographic fill lights.
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Product Precautions
Charging Requirements: A dedicated lithium-ion battery balance charger with a voltage of 16.8V and matching current must be used. Direct charging with non-lithium-ion chargers or power supplies is strictly prohibited to prevent fire or explosion.
Prohibited Actions: Disassembling, crushing, or puncturing the battery is strictly prohibited; throwing the battery into fire or placing it in a high-temperature environment is strictly prohibited; short-circuiting the positive and negative terminals of the battery is strictly prohibited.
Operating Environment: Avoid charging and discharging in extreme temperatures (above 60°C or below -20°C) to prevent damage to the battery cell performance and lifespan.
Installation Instructions: Ensure that the wire terminals are securely connected during installation to prevent loose connections and arcing. Securely fix the battery pack in the equipment to avoid severe vibration or impact.
Disposal: After the battery reaches the end of its lifespan, please dispose of it according to local environmental regulations. Do not discard it indiscriminately.
FAQ
Q1: Can this battery pack be used as a direct replacement for my 12V lead-acid battery?
A1: Not entirely. This battery pack has a full charge voltage of 16.8V and a nominal voltage of 14.8V, which is higher than a 12V lead-acid battery. You need to confirm whether your device's operating voltage range is compatible with 14.8V-16.8V. It is recommended to check the input voltage requirements on your device's nameplate or instruction manual.
Q2: What is the function of the protection board?
A2: The protection board is the "intelligent brain" and "safety guardian" of the battery pack. It monitors the voltage, current, and temperature of each battery cell in real time. When overcharging, over-discharging, excessive current, short circuits, or abnormal temperatures occur, it automatically cuts off the circuit, fundamentally preventing battery damage or dangerous situations.
Q3: How is the battery pack's runtime calculated?
A3: Theoretical runtime (hours) = Battery pack capacity (Ah) / Device operating current (A). For example, if your device has an average operating current of 1A at 14.8V, the theoretical runtime is approximately 6.4Ah / 1A = 6.4 hours. The actual time may be slightly shorter due to factors such as device power consumption fluctuations and ambient temperature.
Q4: How do I charge the battery pack?
A4: You will need a balance charger that supports 4-series lithium batteries (4S Li-ion/LiPo), with an output voltage of 16.8V and a current of approximately 3.2A. Connect the charger's output to the battery pack's charging port (or connect the balance head via a splitter cable).
Q5: Can the battery packs be used in series or parallel?
A5: We do not recommend that users connect multiple finished battery packs with built-in protection boards in series or parallel. Doing so may lead to inconsistent states between the battery packs, interference between the protection boards, and risks of overcharging and over-discharging. If you require higher voltage or capacity, please specify this when ordering, and we will customize a solution for you.
