Description
WLY450840 1S 3.7V 120mAh Lipo Battery Micro Rechargable Battery Pack
The WLY450840 3.7V 120mAh Lithium Polymer Battery is a compact, lightweight, high-performance power solution designed for today’s miniaturized electronics. With a slim form factor and stable discharge characteristics, this battery is ideal for applications requiring reliable power in limited space.WLY450840 3.7V 120mAh LiPo Battery
Its high energy density and low self-discharge make it suitable for continuous-use devices such as IoT sensors, wearable tech, GPS units, and health monitoring devices. The battery supports customization like PCM protection modules, JST or Molex connectors, and wire length variations, making it compatible with both mass production and prototyping.
Why This Battery Stands Out
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✔️ High Power-to-Size Efficiency
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✔️ Excellent Long-Term Storage Stability
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✔️ Supports Fast Charging (Depending on PCM Configuration)
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✔️ Smooth, Safe, Consistent Power Delivery
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✔️ Customizable and Production Friendly
Whether you’re building a commercial electronic product or developing DIY robotics and embedded projects, this LiPo cell ensures premium-grade reliability without compromising portability.
Common Use Cases
This battery is widely used in:
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Smart wearables (watches, bands, trackers)
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Small IoT nodes and wireless sensors
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Miniature robotics and electronics
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Bluetooth-enabled devices
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GPS tracking modules
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Fitness and health monitoring devices
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Smart key tags and security devices
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Audio devices, earphones, and RF modules
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Remote controls and micro handheld gadgets
Safety & Certifications
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Built-in short-circuit safety design (with PCM)
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RoHS & MSDS compliant material
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Stable chemistry ensures resistance to swelling when used properly
⚠️ Always use a compatible Li-ion charger to avoid overcharging or deep discharge.





