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This product is a high-performance, safe, and reliable cylindrical lithium-ion battery pack, utilizing standard 18650 cells. It employs a classic 3-series, 1-parallel (3S1P) configuration, connecting three high-performance lithium cells in series to effectively increase the output voltage while ensuring stable capacity. The battery pack integrates a smart protection board and comes pre-assembled with wiring and terminals, allowing users to connect and use it directly, greatly simplifying the integration process.
The product features a compact design with dimensions of only 38mm (width) * 38mm (thickness) * 68mm (length), achieving a high capacity of 3200mAh and a standard voltage output of 11.1V within a limited space. It is an ideal power solution for applications requiring high energy density and lightweight design. Its robust structure and multiple safety protections ensure stability and durability in various application scenarios.
Product Advantage
High Energy Density: Utilizing high-quality 18650 cells, it provides a large capacity of 3200mAh in a compact size, ensuring long-lasting power.
Multiple Safety Protections: Built-in high-performance protection board provides multiple protections against overcharging, over-discharging, overcurrent, short circuits, and temperature, ensuring safety from the source.
Plug and Play: Comes pre-equipped with a protection board and output wires with terminals (common types include JST, XT30, etc., customizable as needed), eliminating the need for user soldering, saving development time and costs, and reducing assembly risks.
Robust and Stable Structure: Features a high-temperature resistant, flame-retardant casing or high-strength heat-shrinkable film wrapping, with securely spot-welded cell connections, providing good shock resistance and preventing deformation during long-term use.
Stable and Consistent Performance: The cells are rigorously selected and matched to ensure consistent voltage and internal resistance among all cells in the battery pack, optimizing overall performance and cycle life.
Universal Voltage Platform: 11.1V (nominal) / 12.6V (fully charged) output voltage, widely compatible with various devices requiring approximately 12V power.
Technical Parameters
| Battery Cell Type： | Cylindrical 18650 Lithium-ion Battery |
| Configuration: | 3 Series 1 Parallel (3S1P) |
| Nominal Voltage: | 11.1V |
| Full Charge Voltage: | 12.6V (±0.05V) |
| Cut-off Voltage: | 9.0V (Controlled by protection board) |
| Nominal Capacity: | 3200mAh (Measured at 0.2C discharge) |
| Energy: | Approximately 35.5Wh |
| Dimensions (L*W*H)： | Approximately 68mm * 38mm * 38mm (including protection board and cables) |
| Weight： | Approximately 180g-220g (varies depending on casing and wiring) |
| Charging Voltage: | 12.6V CC/CV (Constant Current/Constant Voltage) |
| Standard Charging Current: | 0.5C (approximately 1600mA) Recommended |
| Maximum Charging Current: | 1C (3200mA) |
| Standard Discharge Current: | 1C (3200mA) |
| Maximum Continuous Discharge Current: | Limited by the protection board (usually 5-10A, specific value needs confirmation) |
| Protection Board Functions: | Overcharge, over-discharge, overcurrent, short-circuit protection, optional temperature control |
| Output Terminals: | Standard common terminals (e.g., JST-SM), customization supported |
| Operating Temperature: | Charging: 0°C ~ +45°C / |
| Discharging: | -20°C ~ +60°C (Recommended 0°C~45°C) |
| Storage Temperature： | -20°C ~ +25°C (Half-charge state recommended for long-term storage) |
Product Uses
This battery pack is suitable for various devices requiring a compact, lightweight, and rechargeable DC power source. Typical applications include:
Portable electronic products: Handheld gimbals, portable printers, advanced outdoor lighting, drone backup power.
Power tools and instruments: Small electric screwdrivers, measuring instruments, diagnostic equipment.
Robotics and models: Power supply for small educational robots, model aircraft, and model cars.
Emergency and backup power: Small emergency lights, USB power banks (requires a boost converter module), outdoor monitoring equipment.
Innovative DIY projects and development prototypes.
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Product Precautions
Charging Requirements: Always use a dedicated 12.6V lithium-ion battery charger and ensure the charger parameters match. Using non-standard or inferior chargers is prohibited.
Prohibited Actions: Do not disassemble, crush, or puncture the battery pack; avoid throwing it into fire or placing it in high-temperature environments (such as a car in direct sunlight); short-circuiting the positive and negative terminals is prohibited.
Operating Environment: Avoid charging or discharging at extreme temperatures (too high or too low) to prevent affecting performance and lifespan, or even causing danger.
Installation and Storage: Ensure secure terminal connections and good insulation during installation. For long-term storage (more than 3 months), it is recommended to store the battery in a cool, dry place at a half-charged state (approximately 11.4V-11.7V).
Troubleshooting: If the battery pack shows severe swelling, abnormal heating, leakage, or emits an unusual odor, immediately stop using it and place it in a safe area.
FAQ
Q1: The battery pack is rated at 3200mAh, but my device shows a different capacity?
A: The capacity displayed by the device is an estimated value, and the actual usable capacity is affected by different discharge currents and cutoff voltages. Our stated capacity is measured under standard laboratory conditions (0.2C discharge to cutoff voltage). Under high current discharge, the actual usable capacity will be slightly reduced, which is normal.
Q2: Can I use a regular 12V power adapter to charge it directly?
A: Absolutely not! You must use a dedicated 12.6V constant current/constant voltage (CC/CV) charger designed for 3-series lithium batteries. A regular adapter cannot properly control the charging process and can easily lead to overcharging, causing fire or explosion.
Q3: Can the battery packs be connected in series or parallel?
A: We do not recommend users to connect multiple battery packs with protection boards in series or parallel. The protection boards of each battery pack will interfere with each other, leading to abnormal protection or malfunction. If you need higher voltage or capacity, please specify your customization requirements before purchasing.
Q4: How long is the battery pack's lifespan?
A: The cycle life is greatly affected by usage habits (charging and discharging current, depth of discharge) and ambient temperature. Under standard conditions (0.5C charging and discharging, room temperature), it usually reaches 300-500 cycles before the capacity degrades to 80% of the initial capacity.
Q5: How do I determine if the battery pack is damaged or needs replacement?
A: Consider replacing the battery pack if any of the following occurs: 1) The battery life is significantly shortened (less than 60% of the initial capacity); 2) The battery pack is noticeably swollen or deformed; 3) The battery pack overheats significantly during charging; 4) The battery pack cannot be charged or discharged normally.
Q6: What is the function of the protection board? Can it be removed?
A: The protection board is the core safety guarantee, responsible for monitoring the status of each cell and disconnecting the circuit in case of abnormalities. It is strictly forbidden to remove or bypass the protection board, otherwise, the cells will lose protection and are highly susceptible to danger due to overcharging or over-discharging.
