Description
WLY394058 3.7V 1000mAh LiPo Battery – High-Performance Micro Rechargeable Battery for Wearables, Micro Drones, and IoT
The WLY394058 3.7V 1000mAh LiPo Battery is engineered for modern electronics that demand compact size, lightweight design, and reliable energy delivery. Designed specifically for wearables, micro drones, and IoT devices, this battery combines high capacity with safe and repeatable performance. Its rechargeable LiPo chemistry ensures long-lasting usage while remaining eco-friendly and cost-effective. Whether for DIY projects, embedded systems, or commercial electronic devices, the WLY394058 3.7V 1000mAh LiPo Battery offers consistent power output, making it ideal for applications where space and weight are critical constraints.
Technical Specifications
The WLY394058 3.7V 1000mAh LiPo Battery comes with precise technical specifications to ensure compatibility and predictable performance across multiple electronics applications.
Model Number – WLY394058
The model number, WLY394058, uniquely identifies this specific 1S LiPo cell. It represents the cell’s dimensions, capacity, and manufacturing family. Using the correct model ensures compatibility, prevents mix-ups during procurement, and allows seamless integration with other system components.
Nominal Voltage – 3.7V
The WLY394058 3.7V 1000mAh LiPo Battery delivers a stable nominal voltage of 3.7V, which is suitable for low-voltage microcontrollers, sensors, and wireless communication modules. It supports a charging cutoff of 4.2V and a recommended discharge cutoff around 2.75–3.0V. This stability ensures consistent device performance even under varying load conditions.
Nominal Capacity – 1000mAh
The WLY394058 3.7V 1000mAh LiPo Battery provides 1000mAh capacity, delivering extended runtime compared to smaller cells in micro electronics. This capacity is ideal for wearable devices, IoT sensors, and micro drones where uninterrupted operation is critical. Capacity may vary slightly depending on temperature, depth of discharge, and load profile, but the 1000mAh rating ensures reliable energy delivery.
Continuous & Maximum Charge/Discharge Rates
- Continuous Charge: 0.5C (~500 mA)
- Maximum Charge: 1C (~1000 mA)
- Continuous Discharge: 0.5C (~500 mA)
- Maximum Discharge: 1C (~1000 mA)
These ratings allow the WLY394058 3.7V 1000mAh LiPo Battery to handle both routine and peak power requirements. Wearable devices with intermittent sensor activity or micro drones performing burst maneuvers can operate effectively without compromising battery safety or longevity.
Connector Type – Open Wire
The WLY394058 3.7V 1000mAh LiPo Battery features an open-wire connector, offering flexible integration options. Users can solder directly, attach custom connectors, or interface with protection circuits, enhancing versatility for both prototypes and production-grade electronics.
Life Cycles – ≥300
This battery is rated for ≥300 full charge/discharge cycles at standard operating conditions (0.5C to 2.75V, <80% capacity loss). Proper care—including maintaining optimal charge rates and temperature—ensures consistent long-term performance, making it ideal for devices requiring frequent use over extended periods.
Physical Dimensions & Weight
- Thickness: 3.9mm
- Breadth: 40mm
- Length: 58mm
- Max size including PCB: 3.9 × 40 × 60.5mm
- Weight: 20g
The slim and lightweight design of the WLY394058 3.7V 1000mAh LiPo Battery makes it perfect for integration into compact electronics such as smartwatches, fitness trackers, and micro UAVs.
Applications & Use Cases
The WLY394058 3.7V 1000mAh LiPo Battery is engineered to power a wide variety of compact electronics across different industries. Its versatility makes it suitable for wearables, micro drones, IoT devices, and embedded systems.
Wearables
Powering Sensors & Displays: The battery reliably powers micro displays, heart-rate sensors, IMUs, and BLE radios, maintaining a stable 3.7V supply for precise readings and uninterrupted communication.
Ergonomics & Placement: Its thin profile and light weight (~20g) allow discreet placement within wristbands, straps, or compact enclosures without affecting user comfort.
Battery Life Management: Combined with low-power firmware modes, interval sampling, and optimized BLE connection intervals, the WLY394058 3.7V 1000mAh LiPo Battery can sustain extended operational times.
Micro Drones
Flight Performance: The battery balances capacity and weight, enabling longer hover times and stable flight compared to smaller cells.
Burst Power: With a 1C maximum discharge capability, it can handle temporary thrust spikes needed during aggressive maneuvers.
Mounting & Center of Gravity: Secure placement near the drone’s center of mass ensures stability and prevents vibration-related issues, enhancing flight reliability.
IoT Devices
Remote Sensor Nodes: Suitable for environmental, industrial, or smart-home sensors that require weeks of autonomous operation.
Energy Buffering: Works effectively with solar or energy harvesting modules to provide a maintenance-free power solution.
Duty Cycle Optimization: Deep-sleep modes and event-driven transmissions help maximize battery life in long-term deployments.
DIY & Embedded Systems
Prototyping: Ideal for Arduino, ESP32, and Raspberry Pi Lite projects where low-power consumption and compact design are priorities.
Safety Practices: Use PCM-protected charging circuits and LiPo-safe bags during testing to prevent accidents and ensure safe operation.
Safe Handling, Charging & Storage
Charging Guidelines
Always use a LiPo-specific charger with a CC/CV profile. Standard charging at 0.5C (~500 mA) is optimal for longevity, while 1C fast charging (~1000 mA) is feasible if thermal and system testing is completed. Do not exceed 4.2V per cell.
Storage Recommendations
Store the battery at 40–60% state-of-charge in a cool, dry environment (15–25°C). Avoid fully charged or fully discharged storage, as extreme states can reduce cycle life.
Transport & Safety
Follow local and international regulations for lithium battery transport. Insulate leads and protect against mechanical shock. Bulk shipments should be packaged securely to avoid short circuits and physical damage.
Disposal & Recycling
Do not discard in household trash. Recycle via certified e-waste or lithium collection programs. The WLY394058 3.7V 1000mAh LiPo Battery contains recoverable materials, ensuring environmental safety when processed correctly.
Integration & Design Guidance for WLY394058 3.7V 1000mAh LiPo Battery
Proper integration and design are critical to ensure the WLY394058 3.7V 1000mAh LiPo Battery performs safely and efficiently within wearable devices, micro drones, IoT nodes, and embedded systems. Engineers and product designers must consider mechanical, electrical, thermal, and system-level aspects to optimize battery performance and longevity.
Mechanical Integration
The flat, compact form factor of the WLY394058 3.7V 1000mAh LiPo Battery allows it to fit into constrained enclosures and thin device profiles. When integrating mechanically:
- Clearance: Leave 2–3 mm of space around the battery for insulation, protection circuits, or minor expansion during charging and discharging.
- Stabilization: Use non-conductive foam, clips, or brackets to prevent the battery from moving inside the enclosure. This helps reduce mechanical stress on the battery case and open-wire connections, which is particularly important for devices subject to vibration, like drones or mobile IoT sensors.
- Secure Mounting: For drones, the battery should be fixed firmly near the center of mass to maintain flight stability. In wearables, careful placement under straps or inside thin compartments ensures ergonomic balance without adding discomfort.
Electrical Integration
Electrical integration is essential to maintain safety, reliability, and optimal battery life:
- Protection Circuit Module (PCM): Even if the battery has internal protection, a system-level PCM is strongly recommended. It prevents overcharge, overdischarge, and short circuits, which could otherwise damage the battery or connected electronics.
- System-Level Monitoring: Implement voltage, current, and state-of-charge (SoC) monitoring in the device. This allows intelligent power management, alerts for low battery, and controlled discharge to prevent stress on the cell.
- Open-Wire Connector Use: The WLY394058 3.7V 1000mAh LiPo Battery comes with open-wire leads, making it simple to connect to PCBs, JST/Molex connectors, or custom wiring harnesses for your specific device design.
Thermal Considerations
Temperature management is crucial for the safe and efficient operation of the WLY394058 3.7V 1000mAh LiPo Battery:
- Avoid Heat Sources: Keep the battery away from motors, resistors, MOSFETs, or other heat-generating components. Excessive heat accelerates chemical degradation and can cause voltage instability or swelling.
- Ambient Temperature Stability: LiPo batteries operate best in moderate conditions (~15–25°C). Sudden temperature swings or prolonged exposure to high heat can reduce capacity and cycle life.
- Ventilation & Insulation: If the battery is placed inside a tightly sealed enclosure, consider thermal insulation or ventilation channels to maintain a stable internal temperature. This is particularly important in drones or IoT devices exposed to sunlight or high-power electronics.
By carefully addressing mechanical, electrical, thermal, and system-level integration, engineers can maximize the safety, reliability, and performance of the WLY394058 3.7V 1000mAh LiPo Battery in any application, from compact wearables to high-demand micro drones.
Troubleshooting & Diagnostics for WLY394058 3.7V 1000mAh LiPo Battery
Ensuring the safe and optimal performance of the WLY394058 3.7V 1000mAh LiPo Battery requires awareness of potential issues that may arise during operation. Troubleshooting and diagnostics help maintain battery health, prolong cycle life, and prevent unexpected failures.
Rapid Voltage Drop
A sudden or rapid voltage drop is one of the most common indicators that the battery is under stress or experiencing degradation. This can occur due to several factors:
- High Loads: Continuous or peak current draw exceeding the battery’s rated 0.5C continuous or 1C maximum can cause the voltage to sag temporarily. Devices like micro drones performing aggressive maneuvers may induce such conditions.
- Low Temperature: LiPo batteries are sensitive to ambient temperature. Cold environments reduce internal chemical activity, resulting in lower voltage output.
- Aging or Cycle Fatigue: After repeated charge/discharge cycles, the internal resistance of the battery increases, making voltage drops more pronounced under load.
Diagnostic & Remedial Steps:
- Measure voltage under no-load and under expected load conditions.
- Allow the battery to rest at room temperature to stabilize its chemical state.
- Avoid sustained overcurrent operation; ensure device design respects the 0.5C–1C limits.
- If the voltage drop persists even under normal loads, consider replacing the battery to prevent damage to connected electronics.
Battery Swelling
Swelling occurs when the internal chemical structure of the LiPo battery generates gas, typically due to overcharging, overdischarge, or internal short circuits. Swelling is a serious safety concern.
- Causes:
- Charging above 4.2V per cell.
- Deep discharges below 2.75V.
- Prolonged exposure to high temperatures.
Detection & Response:
- Inspect the battery for visible bulging or deformation regularly.
- Discontinue use immediately if swelling is observed.
- Avoid puncturing or applying pressure to the swollen battery.
- Dispose of the battery safely through certified e-waste or lithium recycling channels.
Reduced Runtime
A noticeable decrease in runtime often signals capacity loss or system inefficiencies:
- Potential Causes:
- Natural capacity fade over repeated cycles.
- Firmware or software controlling power delivery is inefficient.
- Poorly optimized peripherals or sensors drawing excess current.
Solutions:
- Calibrate device firmware to optimize sleep intervals, sensor polling, and communication bursts.
- Monitor device current draw to identify and reduce unnecessary consumption.
- If runtime remains below expectations after optimization, replace the WLY394058 3.7V 1000mAh LiPo Battery to restore performance.
Charging Issues
Charging problems can manifest as slow charging, failure to reach full voltage, or irregular current readings:
- Common Causes:
- Faulty chargers or chargers not designed for LiPo CC/CV profiles.
- Loose or damaged open-wire connections.
- Malfunctioning Protection Circuit Module (PCM) or system-level protection circuitry.
Diagnostic Steps:
- Verify the charger output voltage and current match the battery specifications (nominal 3.7V, standard charge 0.5C, max 1C).
- Inspect wiring and connectors for continuity and secure connections.
- Test the PCM and protection circuits to ensure proper functionality.
- Avoid charging unattended; monitor the battery during charging to detect anomalies.
Key Recommendations
- Always follow safe handling and charging practices outlined in the WLY394058 3.7V 1000mAh LiPo Battery datasheet.
- Maintain a log of voltage, temperature, and runtime trends to detect early signs of degradation.
- Incorporate overcurrent protection and thermal monitoring in device designs to mitigate common LiPo failure modes.
- Prioritize proactive maintenance and replacement to avoid safety hazards, performance loss, or device downtime.
By adhering to these troubleshooting and diagnostic guidelines, the WLY394058 3.7V 1000mAh LiPo Battery can provide safe, reliable, and long-lasting power across wearables, micro drones, IoT devices, and embedded systems.
Comparative Analysis of the WLY394058 3.7V 1000mAh LiPo Battery
The WLY394058 3.7V 1000mAh LiPo Battery occupies a unique position in the LiPo battery spectrum, bridging the gap between ultra-compact, low-capacity cells and bulkier high-capacity solutions. Understanding its comparative advantages helps engineers, designers, and hobbyists make informed decisions for applications such as wearables, micro drones, IoT devices, and portable electronics.
Advantages over Smaller Cells
When compared to smaller micro LiPo cells with capacities ranging from 500mAh to 800mAh, the WLY394058 3.7V 1000mAh LiPo Battery offers several distinct benefits:
- Extended Runtime: Smaller cells often require frequent recharges, which can be inconvenient in continuous-operation scenarios such as wearable health monitors, environmental IoT sensors, or micro drone flights. The 1000mAh capacity of the WLY394058 nearly doubles runtime compared to 500mAh cells and provides a substantial improvement over 800mAh variants.
- Reduced Maintenance Intervals: Longer runtime translates into fewer recharge cycles, reducing the operational interruptions in deployed systems. For example, a wearable device with intermittent sensor activity can operate continuously for days before requiring a recharge, enhancing user convenience.
- Stable Power Delivery: Smaller cells may struggle under peak current demands, causing voltage drops or inconsistent performance. The WLY394058 3.7V 1000mAh LiPo Battery delivers stable voltage during transient loads, maintaining reliable operation for devices with sporadic high-current requirements.
- Improved Safety Margin: Frequent deep discharge cycles of smaller cells accelerate aging and increase the risk of overdischarge-related issues. With higher capacity, the WLY394058 allows devices to operate within safer depth-of-discharge limits, prolonging overall battery life.
- Enhanced User Experience: In wearables and portable devices, longer battery life means less downtime and improved usability. For instance, smartwatches and fitness trackers powered by the WLY394058 3.7V 1000mAh LiPo Battery can remain active for longer periods without user intervention.
Advantages over Larger/High-C Cells
On the other end of the spectrum, high-capacity or high-C LiPo cells can offer greater absolute energy but often at the cost of size, weight, and integration flexibility. The WLY394058 3.7V 1000mAh LiPo Battery provides a well-balanced alternative:
- Compact & Lightweight Design: Larger LiPo cells tend to be bulky and heavier, complicating integration into constrained spaces such as wristbands, micro drones, or slim IoT devices. With dimensions of 3.9 × 40 × 58mm and weight around 20g, the WLY394058 is optimized for devices where size and weight are critical.
- Ease of Integration: Its moderate size allows designers to place the battery in tight enclosures without significant redesigns, unlike high-capacity cells that may require structural reinforcement or extra mounting hardware.
- Sufficient Burst Capability: While high-C cells can deliver higher peak currents, many micro devices rarely require extreme current bursts. The WLY394058 3.7V 1000mAh LiPo Battery provides enough discharge capacity (1C max) for typical wearable and micro drone operations, offering an ideal balance between safety and performance.
- Cost-Effectiveness: Higher-capacity cells usually cost more and can increase BOM (bill of materials) expenses. The WLY394058 3.7V 1000mAh LiPo Battery provides adequate energy at a lower cost point, making it suitable for both prototyping and scaled production.
- Thermal Management: Larger, high-capacity cells generate more heat during charging and discharge. The smaller WLY394058 3.7V 1000mAh LiPo Battery maintains safer operating temperatures, reducing the need for complex thermal management solutions, especially in compact electronics.
- Versatility Across Applications: Its combination of compact size, moderate capacity, and reliable voltage makes the WLY394058 3.7V 1000mAh LiPo Battery suitable across a broader range of applications than very high-capacity cells, which are often specialized for robotics, larger drones, or energy-intensive devices.
Summary
The WLY394058 3.7V 1000mAh LiPo Battery provides an optimal middle ground between low-capacity micro cells and bulky high-capacity LiPo batteries. It delivers extended runtime over smaller cells, reducing the frequency of recharges while maintaining stable power output. Compared to larger or high-C cells, it remains lightweight, compact, and easy to integrate, making it ideal for wearables, micro drones, and IoT devices where space, weight, and reliability are critical.
This comparative positioning makes the WLY394058 3.7V 1000mAh LiPo Battery an excellent choice for engineers, designers, and hobbyists seeking a versatile, high-performance, and safe power solution for a wide range of portable electronics.
Conclusion
The WLY394058 3.7V 1000mAh LiPo Battery is a high-quality, reliable energy solution for wearables, micro drones, IoT devices, and embedded electronics. Its compact size, lightweight design, stable voltage output, and rechargeable nature make it ideal for both commercial and DIY projects. With proper integration, charging, and handling, this battery ensures safe, long-lasting, and consistent performance across a wide range of applications. Choosing the WLY394058 3.7V 1000mAh LiPo Battery guarantees optimized power delivery, extended device runtime, and peace of mind for engineers, hobbyists, and system integrators alike.
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