Description

 

WLY702025 3.7V 300mAh 1S LiPo Battery – Micro Rechargeable Battery Pack by NDB&C LOFTY AGROTECH

The WLY702025 3.7V 300mAh 1S LiPo Battery by NDB&C LOFTY AGROTECH is a premium single-cell lithium polymer battery designed to provide reliable, high-performance power for a wide variety of portable electronic applications. This micro rechargeable battery pack is ideal for wearables, micro drones, IoT devices, DIY electronics, and other embedded systems that demand compact, lightweight, and efficient energy solutions.

Crafted with precision, the WLY702025 3.7V 300mAh 1S LiPo Battery combines a high energy density with a stable voltage output of 3.7V, ensuring uninterrupted device operation. Its small form factor, measuring 7mm in thickness, 20mm in breadth, and 25mm in length (maximum including PCB: 7 × 20 × 27.5mm), and ultra-lightweight of 6.5 grams, allows seamless integration into compact electronics without adding significant weight or bulk.

The rechargeable nature of this LiPo battery makes it an eco-friendly alternative to disposable cells, reducing environmental impact and long-term costs. With over 300 recharge cycles, users can rely on sustained performance while benefiting from a cost-effective, long-lasting energy solution.

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Key Features of the WLY702025 3.7V 300mAh 1S LiPo Battery

High-Capacity Energy Storage

The WLY702025 3.7V 300mAh 1S LiPo Battery delivers 300mAh of high-capacity energy, offering extended runtime for devices where frequent charging is inconvenient. This capacity is ideal for micro drones performing multiple short flights, IoT sensors transmitting data over long periods, and wearables requiring continuous monitoring.

Stable Voltage Output

One of the standout features of the WLY702025 3.7V 300mAh 1S LiPo Battery is its stable voltage delivery. Maintaining a consistent 3.7V output, it ensures reliable performance for sensitive electronics such as microcontrollers, GPS modules, telemetry systems, and wearable devices. This prevents unexpected shutdowns and enhances device longevity.

Compact and Lightweight Design

Weighing only 6.5 grams, the WLY702025 3.7V 300mAh 1S LiPo Battery is specifically designed for compact devices. Its small dimensions make it ideal for integration into wearables, portable sensors, and micro drones, where minimizing weight is crucial for optimal performance. The lightweight nature also enhances portability, making devices more user-friendly.

Rechargeable and Eco-Friendly

Designed for long-term use, the WLY702025 3.7V 300mAh 1S LiPo Battery supports over 300 recharge cycles at 0.5C to 2.75V while retaining ≥80% capacity. This rechargeable feature not only makes it cost-effective but also reduces environmental waste compared to single-use batteries, promoting sustainable technology practices.

Versatile Applications

The WLY702025 3.7V 300mAh 1S LiPo Battery can power a wide range of devices, including:

• Wearables: Smart bands, fitness trackers, and medical monitors
• Micro Drones: Flight controllers, cameras, and telemetry modules
• IoT Devices: Environmental sensors, smart home devices, and remote monitoring units
• DIY Electronics: Arduino, Raspberry Pi, and ESP32-based projects
• Embedded Systems: Portable instrumentation and automation modules

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Technical Specifications

Specification	Details
Model No.	WLY702025
Nominal Voltage	3.7 V
Nominal Capacity	300 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	20 mm
Length	25 mm
Max Size (with PCB)	7 × 20 × 27.5 mm
Weight	6.5 g
Shipping Weight	0.16 kg
Shipping Dimensions	6 × 4 × 3 cm

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Performance Overview

Electrical Performance

The WLY702025 3.7V 300mAh 1S LiPo Battery provides low internal resistance, ensuring minimal voltage drop under load. This efficiency supports devices requiring peak current bursts, such as micro drones performing rapid maneuvers or IoT devices transmitting data.

Its flat discharge curve from full charge (4.2V) down to the cut-off voltage (2.75V) ensures consistent power output. This makes it highly reliable for wearables, micro drones, and embedded electronics, where voltage fluctuations could otherwise cause malfunctions.

Thermal and Environmental Performance

The WLY702025 3.7V 300mAh 1S LiPo Battery can safely operate in temperatures from -20°C to +60°C. Its polymer casing allows efficient heat dissipation, preventing swelling and maintaining device performance during high-load conditions.

This temperature tolerance makes it suitable for outdoor IoT deployments, environmental sensors, and wearable devices exposed to varying climates.

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Charging Guidelines

Proper charging is crucial to maintain the longevity of the WLY702025 3.7V 300mAh 1S LiPo Battery. Recommended parameters include:

• Charger Type: CC/CV LiPo-compatible charger
• Standard Charge Rate: 0.5C (~0.15A)
• Maximum Charge Rate: 1C (~0.3A)
• Cut-off Voltage: 4.2V ± 0.05V
• Temperature Range: 0°C – 45°C

Using appropriate chargers and adhering to these limits ensures safe and efficient charging while preserving battery life.

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Storage and Maintenance

• Store at 40–60% charge for long-term storage
• Recharge every 3 months if idle
• Keep in a cool, dry environment
• Inspect for swelling, corrosion, or physical damage regularly
• Avoid storage in extreme temperatures or direct sunlight

Proper maintenance ensures that the WLY702025 3.7V 300mAh 1S LiPo Battery remains safe and retains its full energy capacity over time.

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Applications in Wearables

Smart Fitness Devices

The WLY702025 3.7V 300mAh 1S LiPo Battery powers fitness trackers, smart bands, and health monitors. Its stable output ensures accurate sensor readings, uninterrupted data collection, and long-lasting operation without frequent recharging.

Medical Wearables

Lightweight and compact, it is ideal for medical devices such as ECG monitors, portable glucose sensors, and wearable alert systems. The stable 3.7V output guarantees reliable performance for critical health monitoring applications.

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Applications in Micro Drones and RC Devices

Micro Drones

Flight controllers, telemetry systems, and micro cameras rely on consistent power delivery. The WLY702025 3.7V 300mAh 1S LiPo Battery ensures smooth drone operation, maintaining stable voltage during high-demand maneuvers and supporting accurate control systems.

Remote-Controlled Devices

Its lightweight nature reduces overall drone or RC vehicle weight, improving agility, flight time, and maneuverability while providing sufficient power for onboard electronics.

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Applications in IoT Devices

The WLY702025 3.7V 300mAh 1S LiPo Battery is specifically designed to meet the energy demands of Internet of Things (IoT) devices, providing reliable, long-lasting, and compact power solutions for both commercial and DIY IoT projects. Its stable voltage output, lightweight design, and low self-discharge rate make it an ideal choice for devices that require uninterrupted performance over extended periods.

1. Environmental Monitoring Sensors

• Powers devices such as temperature, humidity, and air quality sensors, ensuring continuous and accurate data collection.
• The compact size of the battery allows integration into small enclosures or remote sensor housings.
• Supports long-term deployment in outdoor or indoor environments due to its stable performance and wide operating temperature range.

2. Remote Tracking Devices

• Suitable for GPS trackers, asset trackers, and wearable location devices, where portability and consistent energy supply are crucial.
• Ensures reliable tracking even during extended periods without maintenance, thanks to its low self-discharge properties.
• Lightweight design minimizes additional load, which is especially important for portable or wearable tracking systems.

3. Wireless Monitoring Systems

• Powers home automation sensors, smart meters, and industrial monitoring units.
• Enables wireless systems to operate efficiently without frequent recharging, improving user convenience and reducing maintenance costs.
• Provides consistent 3.7V output, which is critical for devices communicating via Wi-Fi, Bluetooth, or Zigbee protocols.

4. Energy Efficiency and Longevity

• The WLY702025 3.7V 300mAh 1S LiPo Battery maintains over 80% capacity after 300 recharge cycles, making it highly cost-effective and sustainable for IoT deployments.
• Low self-discharge ensures devices can remain powered even during periods of inactivity, which is crucial for remote or inaccessible installations.

5. Compact Form Factor for Tight Integrations

• The small size (7mm × 20mm × 25mm) allows the battery to be embedded in compact IoT devices where space is limited.
• Designers can focus on device functionality rather than battery packaging constraints.
• The open-wire connector design enables quick integration into custom PCBs or enclosures.

Benefits for IoT Applications

• Reliable Power: Maintains consistent voltage for uninterrupted operation of sensors and devices.
• Lightweight & Compact: Easy integration into small, portable, or wearable IoT gadgets.
• Low Maintenance: Long-lasting performance with minimal need for replacement.
• Eco-Friendly: Rechargeable design reduces environmental impact compared to disposable batteries.

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The WLY702025 3.7V 300mAh 1S LiPo Battery is therefore a highly reliable, versatile, and efficient power source for IoT devices, supporting uninterrupted data transmission, remote monitoring, and smart device operation. Whether used in smart homes, industrial monitoring systems, environmental tracking, or wearable IoT gadgets, it ensures consistent performance and long-term usability.

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Applications in DIY Electronics and Embedded Systems

The WLY702025 3.7V 300mAh 1S LiPo Battery is an excellent power solution for hobbyists, engineers, and electronics enthusiasts who work on DIY electronics and embedded systems. Its compact size, lightweight design, and stable voltage output make it ideal for powering a wide range of projects where reliability and portability are essential.

1. Arduino Projects

• The battery provides consistent 3.7V power to Arduino boards and modules.
• Ideal for portable or wearable Arduino projects, such as remote sensors, LED displays, or robotic controllers.
• Its open-wire design allows easy soldering or connector attachment, making integration quick and convenient.

2. ESP32 and ESP8266 Projects

• Perfect for wireless IoT applications, including Wi-Fi-enabled sensors, smart home devices, and environmental monitoring.
• Supports the low-power sleep modes of ESP boards while delivering sufficient energy during active data transmission.
• Lightweight design ensures minimal impact on the size and portability of IoT prototypes.

3. Raspberry Pi and Single-Board Computers

• Suitable for powering small Raspberry Pi boards and single-board computing modules in portable setups or battery-operated experiments.
• Ensures stable voltage during low-to-moderate current draws, maintaining reliable operation for embedded applications.

4. Custom Portable Devices

• Hobbyists designing custom handheld devices, remote sensors, or wearable tech can integrate the WLY702025 3.7V 300mAh 1S LiPo Battery seamlessly.
• Its small footprint allows placement in tight enclosures without affecting design aesthetics.
• Provides consistent power supply, reducing the risk of unexpected shutdowns during prototyping or testing.

5. Prototyping and Embedded System Testing

• Engineers can rely on the battery for short-term prototyping and field testing of embedded systems.
• Ensures accurate evaluation of device performance under realistic portable conditions.
• Helps identify power consumption patterns and optimize energy efficiency in electronics design.

Benefits in DIY and Embedded Applications

• Compact Form Factor: Fits easily into small enclosures or portable devices.
• Stable Power Supply: Maintains 3.7V voltage for reliable performance of microcontrollers and sensors.
• Rechargeable and Eco-Friendly: Supports multiple cycles, reducing costs for experimentation and development.
• Easy Integration: Open-wire connectors simplify connection to boards and modules.

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The WLY702025 3.7V 300mAh 1S LiPo Battery is thus a versatile, reliable, and efficient energy solution for anyone working on DIY electronics or embedded system projects, enabling creators to focus on innovation without worrying about power reliability.

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Safety Guidelines for WLY702025 3.7V 300mAh 1S LiPo Battery

Ensuring proper usage of the WLY702025 3.7V 300mAh 1S LiPo Battery is critical for maintaining device performance, battery longevity, and user safety. Lithium polymer (LiPo) batteries store high energy in a compact form, and improper handling can lead to hazards.

1. Avoid Physical Damage

• Do not puncture, crush, bend, or deform the battery in any way.
• Physical damage can cause internal short circuits, leading to swelling, overheating, or fire.
• Handle the battery gently during installation and removal from devices.

2. Prevent Short-Circuiting

• Do not connect the positive (+) and negative (-) terminals directly.
• A short circuit can result in rapid discharge, excessive heat, and permanent battery damage.
• Always ensure proper wiring and insulation when integrating the battery into electronics projects.

3. Use Compatible Chargers Only

• Always charge the battery using LiPo-compatible CC/CV chargers.
• Avoid using standard NiMH, NiCd, or other battery chargers as they can cause overcharging, overheating, or swelling.
• Follow the recommended charge rate (0.5C standard, 1C maximum) to maintain safe operation.

4. Proper Disposal

• Do not throw spent batteries in general waste.
• Dispose of the WLY702025 3.7V 300mAh 1S LiPo Battery at certified e-waste recycling facilities.
• Proper disposal prevents environmental hazards and reduces fire risks.

5. Environmental Precautions

• Keep the battery away from water, fire, and extreme heat.
• Avoid exposing the battery to temperatures above 60°C or below -20°C.
• Do not store the battery near open flames, stoves, or heating elements.

6. Safe Storage and Transport

• Store the battery in a cool, dry place with moderate humidity.
• Avoid storing fully charged or fully discharged for extended periods; ideally, maintain a 40–60% charge.
• Transport batteries in a protective case to prevent accidental punctures or short circuits.

7. Regular Inspection

• Inspect the battery periodically for swelling, corrosion, or damage.
• Discontinue use immediately if any signs of deterioration appear.
• Maintaining regular checks ensures the WLY702025 3.7V 300mAh 1S LiPo Battery continues to perform safely and reliably.

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Troubleshooting Common Issues with WLY702025 3.7V 300mAh 1S LiPo Battery

Even high-quality batteries like the WLY702025 3.7V 300mAh 1S LiPo Battery may occasionally encounter issues due to usage patterns, environmental conditions, or aging. Understanding the root cause and applying proper troubleshooting can ensure safe and reliable operation.

1. Rapid Voltage Drop

Symptoms: Devices suddenly lose power or experience unexpected shutdowns.
Causes:

• High device load exceeding the recommended continuous discharge rate (0.5C)
• Battery aging or natural capacity loss over repeated charge cycles
  Solutions:
• Reduce the discharge load by optimizing device usage
• Check the battery capacity; if it has fallen below 80% of its nominal value, consider replacing it
• Ensure connections are secure and free from corrosion

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2. Battery Swelling

Symptoms: The battery physically expands or shows bulging.
Causes:

• Overcharging beyond the maximum recommended voltage of 4.2V
• Exposure to excessive heat or direct sunlight
• Natural aging or cell degradation
  Solutions:
• Immediately stop using the battery
• Do not puncture, crush, or attempt to flatten the battery
• Dispose of the battery at a certified e-waste facility
• Always use a CC/CV LiPo-compatible charger to prevent overcharging

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3. Battery Not Charging

Symptoms: Battery fails to take a charge or shows no voltage increase.
Causes:

• Loose or damaged connectors
• Charger incompatibility
• Damaged wiring or PCB issues
  Solutions:
• Inspect and clean connectors to remove debris or oxidation
• Use a compatible LiPo CC/CV charger within recommended charge rates (0.5C standard, 1C max)
• Check for any damaged wires, and replace if necessary
• Ensure the battery is not exposed to extreme cold, as low temperatures can temporarily prevent charging

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4. Reduced Runtime

Symptoms: Devices powered by the battery run for shorter periods than expected.
Causes:

• Partial charge-discharge cycles without fully cycling the battery
• Storage at full charge or fully drained state for long periods
• Cold environmental conditions
  Solutions:
• Perform full charge-discharge cycles at 0.5C to recalibrate the battery
• Store the battery at 40–60% charge when not in use for extended periods
• Avoid operating the battery in extreme cold; keep within recommended temperature range (-20°C to +60°C)

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Best Practices to Prevent Common Issues

• Always use a compatible LiPo charger
• Store batteries away from heat, moisture, and direct sunlight
• Do not over-discharge below 2.75V per cell
• Inspect batteries regularly for physical damage or swelling
• Follow manufacturer guidelines for charge rates and cycles

By following these troubleshooting tips and preventive measures, the WLY702025 3.7V 300mAh 1S LiPo Battery will provide safe, reliable, and long-lasting performance for wearables, micro drones, IoT devices, and DIY electronics projects.

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Comparative Advantages

Model	Capacity	Weight	Applications
WLY602540	600mAh	13g	Wearables, Micro Drones
WLY603040	600mAh	13g	IoT, DIY Electronics
WLY701635	400mAh	8g	Wearables, Micro Drones, IoT
WLY702025	300mAh	6.5g	Compact Wearables, IoT, Micro Drones

The WLY702025 3.7V 300mAh 1S LiPo Battery excels in applications where size, weight, and reliability are critical, making it ideal for micro devices, compact drones, and wearable electronics.

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Conclusion

The WLY702025 3.7V 300mAh 1S LiPo Battery from NDB&C by LOFTY AGROTECH is a premium, high-performance micro rechargeable battery designed for modern electronics. Its compact and lightweight design, combined with a stable 3.7V output and 300mAh capacity, makes it ideal for wearables, micro drones, IoT devices, DIY electronics, and embedded systems.

With over 300 recharge cycles, the WLY702025 3.7V 300mAh 1S LiPo Battery provides long-lasting and reliable power, reducing the need for frequent replacements and promoting eco-friendly usage. Its versatile applications, rechargeable design, and cost-effective operation make it a practical choice for both hobbyists and professionals.

Whether you are designing a smart wearable, building a micro drone, deploying IoT sensors, or prototyping DIY electronics, the WLY702025 3.7V 300mAh 1S LiPo Battery delivers consistent, dependable, and long-lasting performance, ensuring your devices operate efficiently and reliably.

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