Description
WLY701635 3.7V 400mAh 1S LiPo Battery
Introduction to WLY701635 3.7V 400mAh 1S LiPo Battery
The WLY701635 3.7V 400mAh 1S LiPo Battery from NDB&C by LOFTY AGROTECH is a high-quality, single-cell lithium polymer battery designed for modern electronics requiring compact, reliable, and efficient power. Engineered for small-scale devices, wearables, micro drones, and IoT systems, this battery provides stable energy output and long-lasting performance.
In a world where electronics are becoming increasingly compact and portable, the WLY701635 3.7V 400mAh 1S LiPo Battery ensures devices perform consistently without compromising on size or weight. Its lightweight construction of only 8 grams, along with its compact dimensions of 7 × 16 × 35mm (and 7 × 16 × 37.5mm including PCB), allows seamless integration into small enclosures and portable devices.
This battery is ideal for DIY electronics, embedded systems, and custom applications where precision energy delivery is critical. Its stable 3.7V output guarantees smooth device operation, while its rechargeable design provides a sustainable and cost-effective alternative to disposable batteries.
Key Features of WLY701635 3.7V 400mAh 1S LiPo Battery
High-Capacity Power
The WLY701635 3.7V 400mAh 1S LiPo Battery offers 400mAh of energy, sufficient to power small devices over extended periods. The high-capacity design ensures longer runtime for wearables, IoT sensors, and micro drones, reducing interruptions due to frequent recharging.
Stable Voltage Output
Delivering a consistent 3.7V, the WLY701635 3.7V 400mAh 1S LiPo Battery maintains optimal performance for voltage-sensitive electronics. This stability is essential for microcontrollers, sensors, and telemetry systems that rely on precise power to function accurately.
Compact and Lightweight Design
With dimensions of 7mm thickness, 16mm breadth, and 35mm length, the WLY701635 3.7V 400mAh 1S LiPo Battery integrates effortlessly into compact electronics, portable IoT devices, and micro drones. Its 8-gram weight minimizes additional bulk, enhancing mobility and user comfort in wearable devices.
Rechargeable and Eco-Friendly
The WLY701635 3.7V 400mAh 1S LiPo Battery is rechargeable up to over 300 cycles, providing a long operational life and reducing environmental impact compared to disposable alternatives. Its eco-friendly design ensures sustainable usage while saving costs over the long term.
Versatile Applications
This battery is suitable for a wide range of applications:
- Wearables: Smart bands, fitness trackers, and health monitors
- Micro drones: Flight controllers, cameras, and telemetry modules
- IoT Devices: Sensors, trackers, and smart monitoring systems
- DIY Electronics: Arduino, ESP32, Raspberry Pi, and embedded projects
- Embedded Systems: Portable instrumentation and automation modules
Technical Specifications
| Specification | Details |
|---|---|
| Model No. | WLY701635 |
| Nominal Voltage | 3.7 V |
| Nominal Capacity | 400 mAh |
| Continuous Charge Current | 0.5C |
| Continuous Discharge Current | 0.5C |
| Maximum Charge Rate | 1C |
| Maximum Discharge Rate | 1C |
| Connector Type | Open Wire |
| Life Cycles | ≥300 cycles (0.5C to 2.75V, <80%) |
| Application | Wearables / Micro Drone / IoT / Embedded Systems |
| Thickness | 7 mm |
| Breadth | 16 mm |
| Length | 35 mm |
| Max Size (with PCB) | 7 × 16 × 37.5 mm |
| Weight | 8 g |
| Shipping Weight | 0.16 kg |
| Shipping Dimensions | 6 × 4 × 3 cm |
Why Choose WLY701635 3.7V 400mAh 1S LiPo Battery?
Reliable Performance
The WLY701635 3.7V 400mAh 1S LiPo Battery provides consistent voltage output under varying loads, ensuring that microcontrollers, sensors, and portable electronics operate efficiently. Low internal resistance enhances energy efficiency, reducing heat generation and energy loss.
Lightweight Advantage
For wearable devices and micro drones, every gram matters. At just 8 grams, the WLY701635 3.7V 400mAh 1S LiPo Battery delivers sufficient energy without adding unnecessary weight, preserving mobility and device ergonomics.
Long Cycle Life
With over 300 recharge cycles, the WLY701635 3.7V 400mAh 1S LiPo Battery retains more than 80% of its original capacity, reducing the frequency of replacements and supporting sustainable device operation.
Eco-Friendly Solution
Using this rechargeable LiPo battery over disposable alternatives reduces electronic waste. Its polymer-based design avoids harmful heavy metals, aligning with environmental safety standards and responsible manufacturing practices.
Applications in Wearable Technology
Smart Wearables
The WLY701635 3.7V 400mAh 1S LiPo Battery powers wearable electronics like fitness bands, smartwatches, and health trackers. Its lightweight design ensures user comfort, while stable voltage ensures uninterrupted functionality.
Medical Devices
Portable medical monitoring devices, such as ECG patches or glucose monitors, rely on precise voltage. The WLY701635 3.7V 400mAh 1S LiPo Battery guarantees consistent readings and reliability for critical health applications.
Applications in Micro Drones and RC Devices
Micro Drones
Flight controllers, FPV cameras, and telemetry modules rely on steady power delivery. The WLY701635 3.7V 400mAh 1S LiPo Battery provides consistent voltage during rapid accelerations and maneuvering, ensuring safe and efficient flight.
RC Devices
For small remote-controlled devices, lightweight batteries like the WLY701635 3.7V 400mAh 1S LiPo Battery improve agility and performance, while ensuring extended runtime.
Applications in IoT Devices
The WLY701635 3.7V 400mAh 1S LiPo Battery is ideal for IoT applications where reliable power and long standby life are critical. Environmental sensors, wireless trackers, and smart home modules benefit from its stable output, low self-discharge, and compact form factor.
Applications in DIY Electronics and Embedded Systems
For makers and engineers, the WLY701635 3.7V 400mAh 1S LiPo Battery powers Arduino, Raspberry Pi, and ESP32-based prototypes reliably. Its compact size and low weight allow creative freedom in designing portable or wearable electronics projects.
Electrical Performance of WLY701635 3.7V 400mAh 1S LiPo Battery
The WLY701635 3.7V 400mAh 1S LiPo Battery is engineered to deliver reliable energy across a wide range of applications. Its low internal resistance ensures minimal voltage drop during peak loads, which is especially important for micro drones, wearables, and IoT devices that experience sudden bursts of current.
Discharge Characteristics
The WLY701635 3.7V 400mAh 1S LiPo Battery maintains a flat and stable discharge curve from full charge (4.2V) down to its cut-off voltage (2.75V). Even at the maximum 1C discharge rate (0.4A), the voltage remains stable, preventing device resets or performance drops, which is critical for voltage-sensitive electronics like microcontrollers and telemetry modules.
Internal Resistance and Efficiency
With an average internal resistance below 100 milliohms, the WLY701635 3.7V 400mAh 1S LiPo Battery minimizes energy loss and heat generation during operation. This high efficiency ensures longer runtime for small devices while maintaining compact dimensions and lightweight construction.
Thermal and Environmental Performance
Temperature Tolerance
The WLY701635 3.7V 400mAh 1S LiPo Battery operates effectively in temperatures ranging from -20°C to +60°C. Its polymer casing provides safe operation under diverse environmental conditions, making it suitable for outdoor IoT sensors, drones, and wearable electronics that may face moderate temperature variations.
Heat Dissipation
During high-load scenarios, such as rapid micro drone maneuvers or continuous sensor data collection, the battery efficiently disperses heat. This prevents swelling and ensures that both the battery and connected devices maintain stable performance.
Charging Guidelines for WLY701635 3.7V 400mAh 1S LiPo Battery
Proper charging is essential to maintain longevity and performance.
Recommended Charging Parameters
- Charger Type: CC/CV LiPo-compatible charger
- Standard Charge Rate: 0.5C (~0.2A)
- Maximum Charge Rate: 1C (~0.4A)
- Cut-off Voltage: 4.2V ± 0.05V
- Temperature Range: 0°C – 45°C
Charging at 0.5C ensures battery health while supporting normal device operation. Occasional fast charging at 1C is safe but may slightly reduce overall cycle life if performed repeatedly.
Safety Features
While the WLY701635 3.7V 400mAh 1S LiPo Battery is a single-cell design, integrating a protection circuit module (PCM) or battery management system (BMS) is recommended. This prevents over-current, over-discharge, and short circuits, particularly in drones, IoT modules, and DIY electronics where unexpected surges may occur.
Storage and Maintenance
Proper storage extends battery lifespan and ensures consistent performance.
Storage Guidelines
- Keep the battery at 40–60% state of charge (~3.75V) for long-term storage.
- Store in a cool, dry place away from direct sunlight and temperatures above 50°C.
- Recharge every 3 months if stored idle to prevent capacity loss.
- Avoid storing fully discharged (<3.0V) or fully charged (>4.0V) batteries for long periods.
Maintenance Tips
- Regularly inspect for swelling or physical damage.
- Check connectors and wires for corrosion or wear.
- Cycle the battery occasionally to maintain optimal capacity.
- Avoid high-vibration or high-impact environments during installation.
These practices ensure that the WLY701635 3.7V 400mAh 1S LiPo Battery retains performance and remains safe for hundreds of cycles.
Handling and Safety Precautions
While the WLY701635 3.7V 400mAh 1S LiPo Battery is robust, careful handling is critical:
- Do not puncture, crush, or bend the battery.
- Avoid short-circuiting terminals.
- Keep away from water, fire, and extreme heat.
- Use only LiPo-compatible chargers.
- Dispose of spent batteries responsibly at certified e-waste facilities.
NDB&C by LOFTY AGROTECH ensures every battery is tested for drop, vibration, thermal, and crush resistance, guaranteeing safe operation under standard conditions.
Applications in Extreme Environments
Outdoor IoT Devices
The WLY701635 3.7V 400mAh 1S LiPo Battery is ideal for environmental monitoring sensors, smart trackers, and remote data collection units. Its low self-discharge and stable voltage allow months of reliable operation without maintenance.
Wearables
For smart bands, health trackers, and portable medical devices, the battery’s lightweight design and consistent energy output support long-term use while maintaining user comfort.
Micro Drones
Flight controllers, telemetry systems, and micro cameras rely on uninterrupted power for precise operation. The WLY701635 3.7V 400mAh 1S LiPo Battery delivers peak performance during high-demand flight conditions, ensuring safe and reliable flight cycles.
DIY Electronics Projects
Arduino, ESP32, and Raspberry Pi projects can operate reliably without worrying about voltage drops or short runtime. The compact battery allows flexible placement within prototype enclosures or portable devices.
Comparisons with Other LiPo Batteries
| Model | Capacity | Weight | Applications |
|---|---|---|---|
| WLY602540 | 600mAh | 13g | Wearables, Micro Drones |
| WLY603040 | 600mAh | 13g | IoT, DIY Electronics, Micro Drones |
| WLY701635 | 400mAh | 8g | Compact Wearables, IoT, Micro Drones |
| WLY703450 | 1000mAh | 20g | Larger RC Devices |
The WLY701635 3.7V 400mAh 1S LiPo Battery offers a unique balance between size, weight, and energy output, making it the preferred choice for compact electronics, IoT nodes, and portable devices where space and weight are limited.
Integration Tips for Manufacturers and Hobbyists
- Mounting: Use foam or padding to reduce vibration stress.
- Air Gaps: Allow 1–2mm clearance for natural battery expansion.
- Wire Routing: Keep leads away from heat sources and moving components.
- Protection Circuits: Use PCM/BMS to safeguard against overcharge, over-discharge, and shorts.
Proper integration ensures safe and efficient operation for the WLY701635 3.7V 400mAh 1S LiPo Battery across various applications.
FAQs about WLY701635 3.7V 400mAh 1S LiPo Battery
Q1: Can this battery power a micro drone continuously?
A: Yes, it delivers stable 3.7V output and sufficient current for micro drone flight systems.
Q2: How many charge cycles are expected?
A: Over 300 cycles at 0.5C discharge while retaining ≥80% capacity.
Q3: Is it suitable for wearable devices?
A: Absolutely. Its compact and lightweight design is ideal for smart bands and health monitors.
Q4: Can I fast-charge it?
A: Yes, up to 1C max, but frequent fast charging may reduce cycle life.
Q5: How should it be disposed of safely?
A: Follow certified e-waste disposal regulations to prevent environmental hazards.
Long-Term Usage Strategies for WLY701635 3.7V 400mAh 1S LiPo Battery
To maximize lifespan and efficiency, proper usage of the WLY701635 3.7V 400mAh 1S LiPo Battery is critical. Over time, even premium LiPo cells can experience capacity degradation if not handled correctly.
Optimal Charge-Discharge Practices
- Discharge below 0.5C for standard operation to maintain longevity.
- Avoid discharging below 2.75V to prevent stress on the battery’s chemistry.
- Use a CC/CV charger at recommended rates for stable and safe charging.
These practices ensure that the WLY701635 3.7V 400mAh 1S LiPo Battery retains maximum capacity over hundreds of cycles.
Temperature Management
Avoid exposing the battery to extreme heat. During intensive operations, such as micro drone flights or continuous sensor monitoring, ensure adequate ventilation to maintain temperature within safe limits (-20°C to +60°C). Proper thermal management preserves cycle life and device reliability.
Battery Rotation
For users managing multiple devices, rotate batteries to avoid overuse of a single unit. The WLY701635 3.7V 400mAh 1S LiPo Battery maintains performance if rotation and rest periods are observed, making it ideal for IoT networks or multiple wearable deployments.
Troubleshooting Common Issues
Even with careful usage, some operational issues may arise. Recognizing potential problems and solutions ensures consistent performance for the WLY701635 3.7V 400mAh 1S LiPo Battery.
Rapid Voltage Drop
Cause: High device load or aging battery.
Solution: Ensure the load does not exceed 1C discharge. If capacity drops below 80% after 300 cycles, replacement is recommended.
Battery Swelling
Cause: Overcharging, high temperature, or cell aging.
Solution: Stop use immediately. Dispose of the battery safely and replace it with a new WLY701635 3.7V 400mAh 1S LiPo Battery.
Battery Not Recognized by Charger
Cause: Loose connections, damaged wires, or wrong charger type.
Solution: Check connectors, ensure a CC/CV LiPo charger is used, and inspect for shorts.
Reduced Runtime
Cause: Battery aging, extreme temperatures, or high load cycles.
Solution: Cycle fully at 0.5C, store correctly, and avoid use below -20°C.
Maintenance and Care
Regular maintenance keeps the WLY701635 3.7V 400mAh 1S LiPo Battery performing optimally:
- Voltage Monitoring: Periodically check open-circuit voltage to detect early capacity loss.
- Connector Inspection: Inspect terminals and wires for corrosion or wear.
- Proper Storage: Maintain 40–60% charge when idle and recharge every three months.
- Environmental Care: Avoid exposure to high vibration or heat sources during storage and operation.
These steps ensure safety, longevity, and optimal device performance.
Field Deployment Examples
IoT Sensor Networks
The WLY701635 3.7V 400mAh 1S LiPo Battery powers remote IoT nodes, environmental sensors, and smart city monitoring devices. Its stable voltage output ensures accurate data collection, while low self-discharge allows long periods of unattended operation.
Wearable Devices
Smart bands, health monitors, and portable fitness trackers benefit from the lightweight design and consistent energy delivery of the WLY701635 3.7V 400mAh 1S LiPo Battery. Users experience longer runtime with minimal device interruptions.
Micro Drones
Flight controllers, telemetry modules, and micro cameras rely on uninterrupted power. The WLY701635 3.7V 400mAh 1S LiPo Battery ensures stable performance during maneuvers and supports peak current demands during accelerations.
DIY Electronics and Prototyping
Arduino, ESP32, Raspberry Pi, and other small embedded systems can be reliably powered. The compact form factor allows flexible placement in custom enclosures and portable designs.
Comparative Advantages
| Model | Capacity | Weight | Applications |
|---|---|---|---|
| WLY602540 | 600mAh | 13g | Wearables, Micro Drones |
| WLY603040 | 600mAh | 13g | IoT, DIY Electronics |
| WLY701635 | 400mAh | 8g | Compact Wearables, Micro Drones, IoT |
| WLY703450 | 1000mAh | 20g | Larger RC Devices |
The WLY701635 3.7V 400mAh 1S LiPo Battery offers a perfect balance of compact size, lightweight design, and reliable energy delivery, making it ideal for applications where space and weight constraints are critical.
Economic and Environmental Benefits
The WLY701635 3.7V 400mAh 1S LiPo Battery is a rechargeable, eco-friendly solution that reduces reliance on disposable batteries. Over 300 cycles, a single battery can replace hundreds of single-use cells, saving costs and minimizing environmental impact. NDB&C by LOFTY AGROTECH ensures compliance with RoHS and REACH standards, promoting responsible manufacturing and safe materials.
Integration Tips for Manufacturers and Hobbyists
- Secure Mounting: Use foam or padding to protect the battery from vibration.
- Air Gaps: Allow 1–2mm for natural expansion.
- Wire Routing: Keep leads away from heat sources and moving parts.
- Protection Circuits: Use PCM/BMS to prevent overcharge, over-discharge, and short circuits.
Following these tips ensures that the WLY701635 3.7V 400mAh 1S LiPo Battery operates safely and efficiently across various devices.
Final Recommendations
The WLY701635 3.7V 400mAh 1S LiPo Battery from NDB&C by LOFTY AGROTECH is the ideal energy solution for:
- Compact wearables
- Micro drones and RC devices
- IoT sensors and trackers
- DIY electronics and embedded systems
Key advantages:
- Stable 3.7V output for sensitive electronics
- 400mAh capacity for extended runtime
- Compact and lightweight design (8g, 7 × 16 × 35mm)
- Over 300 recharge cycles
- Open-wire connectors for easy integration
- Rechargeable, eco-friendly, and cost-effective
Whether powering wearables, micro drones, IoT devices, or DIY electronics, the WLY701635 3.7V 400mAh 1S LiPo Battery delivers consistent, reliable, and long-lasting performance.
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