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3.7 V Li-ion Battery 30~500mAh
Explore 3.7V Li-ion batteries ranging from 30mAh to 500mAh, ideal for lightweight devices like fitness trackers, medical equipment, and wireless sensors. With high energy density and reliable performance, these batteries deliver precision and longevity.
3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
  • 3.7 V Li-ion Battery 402535-300mah
3.7 V Li-ion Battery 402535-300mah
  • Model: 402535
  • SKU: YXE402535
Functions reliably even at -40℃, ideal for harsh environments. A stable 3.7 V output ensures consistent power delivery for various electronics. Extended cycle life maximizes usage, ensu
  • Functions reliably even at -40℃, ideal for harsh environments.

  • A stable 3.7 V output ensures consistent power delivery for various electronics.

  • Extended cycle life maximizes usage, ensuring cost efficiency.

  • Built-in protections against overcharging, over-discharging, and short circuits for secure performance.

  • Tailored for diverse device needs with customizable capacities and sizes.

Product Details

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Lithium batteries exhibit varying discharge rates. Mingyu batteries support a maximum discharge rate of 5.0C, delivering high power output in short durations.
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Mingyu lithium battery maintains over 80% capacity after 500 cycles at room temperature,utilizing 0.5C charge and discharge conditions.
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Batteries exhibit differential self-discharge rates at 100% and 70% charge states.
Self-discharge is higher at 100% state of charge (SOC) compared to 70% SOC.
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Lithium batteries operate within the -20°C to 60°C discharge temperature range.
 Mingyu custom low-temperature batteries can be used for -40°C to 55°C operation, catering to diverse outdoor scenarios.
Battery Capacity Testing
Before shipment, each lithium battery undergoes meticulous testing to validate voltage, current, and other essential parameters, ensuring consistency and reliability in performance.
Environmentally Friendly
We use A-grade batteries, eco-friendly, safe and no droplet, energy-saving and environmentally friendly, economical and durable.
Environmentally Friendly

Li-ion Battery Series Table Display

Battery   Name Lithium Polymer Battery
Certification UN38.3 / IEC62133 / KC / CB /   UL1642 / UL2054 / BIS / WERCS / PSE / CE / ROHS /CCC
Nominal   Voltage 3.7V
Model Customized as needed
Advantage 5C fast charging technology   features, 10 minutes charging more than 80%.
High cycle life technology   features, battery life is 3 times that of the industry
Semi-solid-state lithium battery   technology features, the cycle life is increased by 30%-50% compared with   ordinary liquid<br>batteries, and the battery capacity is increased by   20% 
High and low temperature lithium   battery technology characteristics, ultra-low temperature 0.2C discharge   battery capacity retention rate of more than 70%. 
Graphene lithium battery   technology features, internal resistance reduced by 30%, cycle doubled, and   rate increased by 20% 
High energy density   technology 
OEM/ODM Thickness range from 2mm to 14mm
Capacity range from 50mAh to   10000mAh+
Mini Lipo Battery High   Temperature Battery,LiPo Battery Pack,Uitra Thin LiPoBattery,Smallest LiPo   Battery 
Cycle   life 500 Times
Warranty 12 Months
Appllcatlons Office Series
Intelligent robot series   products
Personal care and beauty   products
Smart home series products
Learning and education products
Pet series products
IoT GPS series products
Security products
Wearable products
Health care series products
Tablet PC series products
Model airplane series products


3.7 V Li-ion Battery 402535-300mah Lithium Ion Battery Application


Lithium Polymer Battery for Blood Pressure Monitors

Our lithium polymer batteries for blood pressure monitors feature stable voltage output and long cycle life, ensuring accurate and consistent readings for daily health monitoring. They adopt low-power consumption design for extended use between charges, delivering reliable performance for at-home blood pressure tracking. Besides, they maintain consistent operation even with frequent use, supporting uninterrupted health management.

Portable blood pressure monitor.jpg



Lithium Polymer Battery for Smart Fitness Watches

Our lithium polymer batteries for smart fitness watches feature high energy density and low power consumption, supporting all-day tracking of heart rate, steps, and workout data. They adopt fast charging technology for quick power restoration, delivering reliable endurance for outdoor running and fitness training. Besides, they maintain stable performance with continuous sensor usage, keeping your health monitoring uninterrupted throughout the day.

Smartwatch.jpg



Lithium Polymer Battery for Vehicle GPS Navigation Devices

Our lithium polymer batteries for vehicle GPS navigation devices feature wide temperature resistance and stable power output, ensuring accurate positioning and real-time route guidance on the road. They adopt anti-interference design for reliable operation even in harsh driving environments, delivering long-lasting endurance for cross-country trips and daily commutes. Besides, they support continuous power supply during long drives, keeping your navigation system running without interruptions.

Vehicle positioning tracker.jpg



Lithium Polymer Battery for Smart Home Control Panels

Our lithium polymer batteries for smart home control panels feature high stability and low self-discharge rate, supporting continuous operation of home automation systems. They adopt compact design for seamless integration into wall-mounted control panels, delivering reliable backup power for managing lights, air conditioners, and other smart devices. Besides, they maintain consistent performance during power outages, ensuring uninterrupted control of your smart home ecosystem.

Whole-house intelligent central control panel.jpg



Lithium Polymer Battery for True Wireless Earbuds

Our lithium polymer batteries for true wireless earbuds feature ultra-small size and high energy density, supporting extended playtime and quick charging for daily use. They adopt low-power consumption design for all-day music listening and calls, delivering stable power output for clear audio performance. Besides, they maintain consistent performance with frequent charging cycles, keeping your wireless earbuds ready for work, study, and entertainment anytime.

Wireless Bluetooth Headphones.jpg

The Complete Guide For 3.7 V Li-ion Battery 402535-300mah

The 3.7 V Li-ion Battery 402535-300mah is a slim compact power source for miniature portable electronics and low-power devices. This guide covers its advantages, specifications, safety rules, maintenance and purchasing suggestions.

Part 1. Advantages and Applications

Featuring slim size, high energy density and stable power output, this 402535 battery is widely used for smart wearables, Bluetooth devices, mini sensors and small electronic gadgets. As a rechargeable cell, it helps cut operating costs and is eco-friendly, suitable for standard and customized products.

Part 2. Technical Specifications

It has a nominal voltage of 3.7V and rated capacity of 300mAh, ensuring steady working duration for small devices. It is compatible with common lithium-ion charging standards and offers reliable discharge performance. Standard operation effectively maintains battery stability and service life.

Part 3. Safety and Handling

Correct usage is essential to avoid faults and potential hazards. Equipped with multi-protection circuits, it guards against overcharge, over-discharge, over-current, short circuit and abnormal temperature. Keep it in a cool, dry and ventilated place, away from direct sunlight and moisture, and follow product guidelines strictly.

Part 4. Maintenance and Longevity

Avoid deep discharge during daily use and only apply certified lithium-ion chargers. For long-term storage, keep the battery charge at 40%-60%, and top up power every 3 to 6 months to prevent capacity loss.

Part 5. Buying Guide and Recommendations

Select 402535-300mah lithium batteries from MingYu energy. Our strict quality control and professional support deliver stable performance to meet your product application needs.


  • Q1. Can you provide cell traceability?
  • Q2. Does charging in low temperature damage the battery?
  • Q3. Do you have formal quality standard documents?
  • Q4. Can you ship via battery-specialized lines?
  • Q5. Can you send photos/videos during production?
  • Q6. Can samples go through the same testing process as mass production?
  • Q7. Is your BMS in-house or outsourced?
  • Q8. Can batteries be connected in series/parallel?
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High Energy Density
It stores large amounts of energy in a smaller and lighter package
Longer Cycle Life
Withstands extensive charge and discharge cycles
Low Self-Discharge
Maintains power longer when not in use
Safety
Minimizes the risk of accidents and ensures safe operation
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