Description
WLY602040 3.7V 400mAh 1S Micro LiPo Battery
Introduction to 3.7V 400mAh 1S Micro LiPo Battery
The WLY602040 3.7V 400mAh 1S Micro LiPo Battery by LOFTY AGROTECH represents a pinnacle in compact, high-performance power solutions for modern electronics. Designed for wearables, micro drones, IoT devices, and portable gadgets, this micro LiPo battery combines lightweight design, high energy density, and exceptional safety features.
In today’s world of portable technology, where devices are continuously shrinking while demand for longer operational life grows, a reliable 3.7V 400mAh 1S Micro LiPo Battery becomes crucial. It delivers consistent voltage, long-lasting capacity, and a stable current, making it superior to traditional AA, AAA, or NiMH batteries in microelectronics and compact IoT applications.
This micro LiPo battery is ideal for applications where space and weight constraints are critical but high energy output is still required. Its rechargeable nature, low self-discharge, and PCM protection make it a long-term, cost-effective, and safe solution for any project.
Advantages of the 3.7V 400mAh 1S Micro LiPo Battery
High Energy Density
Despite its small form factor, the WLY602040 3.7V 400mAh 1S Micro LiPo Battery offers high energy storage, providing ample power for micro drones, wearables, and IoT devices. High energy density allows devices to operate longer between charges, which is essential for applications such as fitness trackers, smartwatches, and wireless sensors.
Lightweight and Compact Design
Weighing just 8 grams and measuring 6mm × 20mm × 40mm, this battery integrates seamlessly into devices where size and weight are critical. Micro drones benefit from extended flight time without the burden of heavy batteries, while wearables maintain comfort and portability.
Long Cycle Life and Rechargeability
The 3.7V 400mAh 1S Micro LiPo Battery supports over 300 charge-discharge cycles, ensuring long-term reliability and cost efficiency. Unlike NiCd batteries, LiPo cells have no memory effect, retaining their full capacity over repeated usage. This characteristic ensures your devices operate at peak performance for a longer period.
PCM Protection for Safety
Each WLY602040 battery comes equipped with a Protection Circuit Module (PCM) that safeguards against overcharging, over-discharging, and short circuits, enhancing safety for both the battery and the connected devices. PCM protection is essential for preventing damage in compact electronics where battery failure could lead to device malfunction.
Low Self-Discharge Rate
Even when not in use, this micro LiPo battery retains its charge, making it ideal for IoT devices and wearables that might remain idle for extended periods. This feature ensures that your devices are ready for operation whenever needed.
Technical Specifications of WLY602040 3.7V 400mAh 1S Micro LiPo Battery
The WLY602040 3.7V 400mAh 1S Micro LiPo Battery is engineered to meet the rigorous demands of modern portable electronics. Its nominal voltage of 3.7V ensures stable and reliable performance, while the nominal capacity of 400mAh provides extended operational time. With continuous charge/discharge at 0.5C and a maximum of 1C, this battery balances energy efficiency and safety.
The open wire connector allows flexible integration into various circuits, while the compact dimensions make it suitable for micro drones, wearables, and IoT applications. With a life cycle of over 300 times, this battery delivers long-lasting performance and cost savings.
| Specification | Details |
|---|---|
| Model No. | WLY602040 |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 400mAh |
| Continuous Charge/Discharge | 0.5C |
| Maximum Charge/Discharge Rate | 1C |
| Connector Type | Open Wire |
| Life Cycles | ≥300 at 0.5C to 2.75V |
| Dimensions (T × B × L) | 6mm × 20mm × 40mm |
| Max Size Including PCB | 6mm × 20mm × 42.5mm |
| Weight | 8g |
| Shipping Weight | 0.01 kg |
| Shipping Dimensions | 7 × 6 × 1 cm |
Elaborated Technical Insights
Model Number: WLY602040
The WLY602040 is a high-performance micro LiPo battery series, engineered for compact, lightweight, and efficient power delivery. Its model number identifies it as part of LOFTY AGROTECH’s micro LiPo battery line, making it easy to match with compatible devices.
Nominal Voltage: 3.7V
Operating at a nominal voltage of 3.7 volts, this battery ensures consistent energy output for portable electronics, micro drones, and wearable devices. The voltage stability prevents sudden drops that can interfere with device performance.
Nominal Capacity: 400mAh
With a nominal capacity of 400mAh, the WLY602040 provides ample energy for extended use in small electronics. This capacity allows micro drones, IoT sensors, and wearable devices to operate reliably without frequent recharging.
Continuous Charge/Discharge Rate: 0.5C
The battery supports a continuous charge and discharge rate of 0.5C, ensuring steady and safe energy flow during regular operation. This rating helps prevent overheating and maintains battery longevity during standard use.
Maximum Charge/Discharge Rate: 1C
For short bursts of high power, such as in micro drones or high-drain IoT devices, the battery can handle a maximum charge/discharge rate of 1C. This flexibility ensures optimal performance in devices requiring variable energy loads.
Connector Type: Open Wire
The open wire connector provides flexible integration into various devices. Users can attach custom connectors or solder wires according to the device’s specifications, making it ideal for DIY projects, hobbyist drones, and custom electronics.
Life Cycles: ≥300 at 0.5C to 2.75V
The battery has a long cycle life, supporting over 300 charge-discharge cycles under standard conditions (0.5C discharge to 2.75V per cell). This ensures consistent performance over time and reduces the need for frequent replacements.
Dimensions: 6mm × 20mm × 40mm
The compact dimensions make this battery suitable for tight spaces in wearables, micro drones, and portable IoT devices. Its slim profile allows for easy integration without compromising the device’s design or ergonomics.
Maximum Size Including PCB: 6mm × 20mm × 42.5mm
Including the Protection Circuit Module (PCM), the maximum battery size is 6mm × 20mm × 42.5mm, ensuring enhanced safety while maintaining a compact footprint suitable for small electronics.
Weight: 8g
Weighing only 8 grams, the WLY602040 contributes minimal weight, making it ideal for micro drones, wearables, and portable gadgets where reducing weight is crucial for performance and efficiency.
Shipping Weight and Dimensions
The battery is easy to store, transport, and handle, with a shipping weight of 0.01 kg and dimensions of 7 × 6 × 1 cm. Compact packaging ensures safe delivery and reduces shipping costs.
Features of the 3.7V 400mAh 1S Micro LiPo Battery
The WLY602040 3.7V 400mAh 1S Micro LiPo Battery from LOFTY AGROTECH is engineered to deliver high-performance, safe, and long-lasting power for modern electronics. Its features make it an ideal choice for wearables, micro drones, IoT devices, electronic toys, and portable gadgets.
Lightweight and Compact Design
The battery’s small form factor allows easy integration into compact devices without adding unnecessary bulk. Weighing only 8 grams and measuring 6mm × 20mm × 40mm, it is ideal for micro drones, wearable electronics, mini cameras, and IoT devices where space and weight constraints are critical. Its lightweight design also improves the overall efficiency and mobility of devices.
PCM Protection for Safety
The integrated Protection Circuit Module (PCM) safeguards the battery and connected devices by preventing:
- Overcharging – protects against voltage exceeding 4.2V per cell
- Over-discharging – prevents voltage from dropping below 2.75V per cell
- Short circuits – avoids potential fire hazards or device damage
PCM protection ensures safe operation, extending battery life while maintaining performance.
No Memory Effect
Unlike traditional NiCd batteries, the 3.7V 400mAh 1S Micro LiPo Battery does not suffer from memory effect. Users can charge it at any time, regardless of its current state of discharge, without compromising full capacity. This feature simplifies usage for devices that are charged intermittently.
Long Cycle Life
The battery supports over 300 charge-discharge cycles, providing reliable, long-term performance. Even with frequent charging, it maintains stable voltage output and high capacity, making it cost-effective for both hobbyist and industrial applications.
Low Self-Discharge
The battery exhibits minimal self-discharge, meaning it retains charge for extended periods when not in use. This characteristic is particularly beneficial for IoT devices, sensors, and wearables, ensuring they are always ready for operation without frequent recharging.
Excellent Charging and Discharging Performance
The WLY602040 supports 0.5C continuous charge/discharge and 1C maximum, allowing the battery to handle both steady and high-demand energy requirements. This makes it suitable for applications like micro drones that need bursts of power during flight or IoT devices with variable current draw. Its stable energy output ensures consistent device performance and prevents voltage drops during critical operations.
Applications of the 3.7V 400mAh 1S Micro LiPo Battery
The 3.7V 400mAh 1S Micro LiPo Battery from LOFTY AGROTECH is designed to provide high-density, reliable, and compact power for a wide range of modern electronic devices. Its lightweight form factor and stable voltage output make it an ideal choice for applications where both performance and size efficiency are critical.
Wearables
The battery is perfect for smartwatches, fitness trackers, and health monitoring devices. Its compact size ensures minimal bulk while delivering enough energy to power continuous sensor operation, data tracking, and Bluetooth connectivity. Users can rely on consistent performance throughout the day without frequent recharging.
Micro Drones
For micro drones, the 3.7V 400mAh battery provides stable voltage output to maintain flight stability and responsiveness. Its lightweight design reduces overall drone weight, resulting in longer flight times and improved maneuverability. High discharge capability ensures that drones can perform quick bursts of energy during complex maneuvers.
IoT Devices
IoT devices, including sensors, trackers, and smart home gadgets, require batteries that maintain charge over long periods with minimal self-discharge. This micro LiPo battery ensures reliable, continuous operation, making it ideal for devices that monitor environmental conditions, collect data, or communicate wirelessly without frequent battery replacement.
Electronic Toys
In small drones, robotic kits, and other electronic toys, the battery delivers safe, high-density power. Its ability to handle consistent charging and discharging cycles ensures toys operate reliably while maintaining long-term battery health. Compact size also allows seamless integration into small, lightweight designs.
Portable and Wireless Devices
The battery is well-suited for mini cameras, wireless headsets, and other portable electronics that require lightweight, rechargeable power sources. Its efficient energy delivery supports extended device usage, making it ideal for users who need reliable performance on the go without adding unnecessary bulk.
Safety Precautions for the 3.7V 400mAh 1S Micro LiPo Battery
Ensuring proper handling and storage of your 3.7V 400mAh 1S Micro LiPo Battery is essential for maintaining safety, performance, and longevity. LiPo batteries, while highly efficient and compact, can pose risks if not treated correctly. Following these precautions helps prevent accidents such as overheating, swelling, or fire.
Temperature Guidelines
- Avoid extreme temperatures: Do not store or operate the battery below 0°C or above 50°C.
- Exposure to low temperatures can reduce the battery’s capacity and efficiency, while high temperatures can cause thermal runaway or permanent damage.
- Always ensure that devices using this battery are kept within safe operating temperatures, particularly during high-drain applications like micro drones.
Proper Storage
- Disconnect when not in use: Always remove the battery from devices to prevent accidental discharge or short circuits.
- Fireproof and non-conductive containers: Store the battery in a LiPo-safe bag or container to reduce the risk of fire in case of malfunction.
- Avoid stacking multiple batteries together or storing them near metallic objects, which could create short circuits.
Avoid Direct Sunlight and Heat
- Never expose the battery to direct sunlight, heaters, or any high-heat environment.
- Excess heat can cause the electrolyte to expand, leading to swelling or leakage, and in extreme cases, battery rupture.
Cooling Before Charging
- Always allow the battery to cool down after use before recharging.
- Charging a warm battery increases the risk of overheating, reduced cycle life, and safety hazards.
Follow Manufacturer Guidelines
- Adhere strictly to the charging, storage, and disposal instructions provided by LOFTY AGROTECH.
- Using incompatible chargers, ignoring temperature guidelines, or mishandling the battery can void warranty and compromise safety.
- Dispose of worn-out batteries according to local regulations for lithium polymer batteries to prevent environmental hazards.
Charging and Maintenance Tips for the 3.7V 400mAh 1S Micro LiPo Battery
Proper charging and maintenance are essential to ensure the longevity, performance, and safety of your 3.7V 400mAh 1S Micro LiPo Battery. Following these guidelines will maximize battery life, prevent damage, and maintain consistent performance for micro drones, wearables, IoT devices, and other portable electronics.
Use Compatible Chargers
Always use chargers specifically designed for LiPo batteries. The WLY602040 3.7V 400mAh 1S Micro LiPo Battery supports a 0.5C continuous charging rate and a 1C maximum charging rate. Using incompatible chargers may result in overheating, overcharging, or permanent battery damage, and can even pose a fire risk. A compatible charger ensures controlled voltage and current, allowing the battery to safely reach full charge without stress.
Avoid Overcharging
Never exceed 4.2 volts per cell when charging the battery. Overcharging can cause the battery to swell, overheat, or lose capacity permanently. Modern LiPo chargers typically include overcharge protection, but it is always recommended to monitor the battery during charging. Avoid leaving the battery unattended while charging, and remove it from the charger as soon as it reaches full voltage.
Proper Storage
For long-term storage, charge the battery to 3.8–3.9V per cell (approximately 50–60% of full capacity). Storing fully charged or fully depleted LiPo batteries for extended periods can reduce cycle life and increase the risk of capacity loss. Keep the battery in a cool, dry place, ideally in a fireproof, non-conductive container. Avoid humid environments, direct sunlight, or proximity to heat sources.
Periodic Inspections
Regular inspections are crucial for safety and performance. Before each use, check the battery for:
- Swelling or puffing – indicates internal damage or overcharging.
- Leaks or corrosion – electrolyte leakage can damage devices and pose safety hazards.
- Physical damage – tears, punctures, or bent connectors.
If any abnormalities are observed, discontinue use immediately and replace the battery. Routine inspections help prevent unexpected failures and ensure the battery maintains optimal performance and safety throughout its lifecycle.
FAQs About the 3.7V 400mAh 1S Micro LiPo Battery
Q1: Can I use this battery in micro drones?
A: Yes, the 3.7V 400mAh 1S Micro LiPo Battery is specifically optimized for micro drones, delivering stable voltage, consistent current, and extended flight times. Its lightweight design makes it ideal for aerial devices.
Q2: How long does a 400mAh LiPo battery last?
A: Runtime depends on the device’s power consumption. For low-power IoT devices or wearables, the 3.7V 400mAh 1S Micro LiPo Battery can last several hours to days, providing reliable and long-lasting energy.
Q3: Is this LiPo battery safe?
A: Yes. With integrated PCM protection, the 3.7V 400mAh 1S Micro LiPo Battery ensures safe operation by preventing overcharge, over-discharge, and short circuits, making it suitable for wearables, IoT devices, and micro drones.
Q4: Can this battery replace Li-ion batteries?
A: Absolutely. The 3.7V 400mAh 1S Micro LiPo Battery provides higher energy density and a smaller, lighter form factor, making it ideal for replacing Li-ion cells in portable electronics and compact gadgets.
Q5: How should I store this battery long-term?
A: For long-term storage, charge the 3.7V 400mAh 1S Micro LiPo Battery to 3.8–3.9V per cell and keep it in a cool, dry, ventilated environment. This preserves battery health and prolongs its cycle life.
Q6: What if the battery swells or leaks?
A: Immediately discontinue use. Safely dispose of the 3.7V 400mAh 1S Micro LiPo Battery and replace it with a new one. Swelling or leakage indicates the battery is no longer safe for operation.
Q7: Can this battery be used in wearable health devices?
A: Yes, the 3.7V 400mAh 1S Micro LiPo Battery is compact and lightweight, making it ideal for smartwatches, fitness trackers, and other health-monitoring wearables.
Q8: What is the maximum charge/discharge rate of this battery?
A: The 3.7V 400mAh 1S Micro LiPo Battery supports 0.5C continuous charge/discharge and 1C maximum, providing reliable energy for both steady and high-demand applications.
Q9: How many cycles can this battery handle?
A: This battery has a long cycle life, supporting over 300 charge-discharge cycles, ensuring durable performance for IoT devices, drones, and wearables.
Q10: Is the battery ready to use immediately after shipping?
A: Yes. The 3.7V 400mAh 1S Micro LiPo Battery comes pre-charged partially for safe handling. It is recommended to fully charge before first use to achieve optimal performance.
Conclusion
The WLY602040 3.7V 400mAh 1S Micro LiPo Battery from LOFTY AGROTECH is a compact, high-performance, and safe power solution for modern electronics. Its lightweight design, PCM protection, long cycle life, and high energy density make it ideal for micro drones, wearables, IoT devices, and portable electronics.
With excellent charging and discharging characteristics, low self-discharge, and no memory effect, this micro LiPo battery ensures your devices remain reliable, safe, and efficient.
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