3.7V Li-ion Battery 35mAh~1000mAh
Explore SY’s 3.7V Li-ion batteries with capacities ranging from 30mAh to 420mAh. Widely used in compact devices like fitness trackers, medical equipment, and wireless sensors, these batteries feature high energy density, excellent reliability, and superior safety, making them your trusted power solution.
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3.7V Li-ion Battery 30mAh~420mAh
Product Features
- Capacity Range: 30mAh - 420mAh
- Battery Type: Lithium Polymer Battery
- Energy Density: 150 - 250 Wh/kg, volumetric energy density of 400 - 600 Wh/L
- Cycle Life: ≥500 charge-discharge cycles
- Fast Charging: Supports 1C-2C fast charging; up to 80% charge in 30 minutes
- Protection Mechanisms: Overheat, overcharge, and short circuit protection
- Customization: Custom sizes, shapes, and Battery Management Systems (BMS) available
Applications of 3.7V Li-ion Battery 35mAh~1000mAh
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Selecting SY as your battery supplier ensures high-quality products, professional service, and long-term cooperation benefits. Here’s why customers trust us:
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FAQs About 3.7V Li-ion Battery 30mAh~420mAh
Find answers to the most frequently asked questions about SY's 3.7V lithium-ion batteries, designed to help you make informed decisions for your applications.
What applications are best suited for 3.7V Li-ion batteries?
3.7V Li-ion batteries are ideal for wearable devices, medical equipment, consumer electronics, IoT devices, and beauty care products. Their high energy density and compact size make them perfect for portable applications where space and weight are critical.
How do I know if a 3.7V Li-ion battery is suitable for my product?
Consider your device’s power requirements, size constraints, operating temperature, and discharge rate. Our technical team can assist you in selecting the best model for your needs.
Can I customize the battery capacity and shape for my device?
Yes. SY offers full customization options, including capacity, dimensions, connectors, and Battery Management Systems (BMS) to fit your specific requirements.
What does the battery discharge rate mean?
The discharge rate (C-rate) indicates how quickly a battery can deliver power. A higher C-rate means the battery can supply energy faster but may shorten overall cycle life if pushed beyond specifications.
What is the recommended discharge rate for these batteries?
For most applications, a discharge rate between 0.5C to 1C is ideal. High-drain devices can utilize up to 2C, but consult our experts to select the right rate for longevity and safety.
Can these batteries operate under high temperatures?
SY batteries are designed to operate within -20°C to 60°C. For high-temperature environments, specialized models with enhanced thermal stability are available.
What safety features are included?
All batteries come with built-in protections against overcharging, over-discharging, short circuits, and overheating to ensure safe usage across various applications.
How long is the cycle life of a 3.7V Li-ion battery?
Our batteries typically support over 500 charge-discharge cycles under standard usage conditions, ensuring long-term performance and reliability.
What certifications do SY batteries have?
SY’s 3.7V Li-ion batteries are certified with CE, FCC, UL, UN38.3, RoHS, PSE, and KC to meet global safety and environmental standards.
How can I get a sample for testing?
You can request a sample through our sales team. We offer quick sample delivery and technical support to assist in your product evaluation.