Lithium Polymer Lipo Rechargeable Battery KP 312278 3.7V 550mAH

The KP 312278 3.7V 550mAh Lithium Polymer Rechargeable Battery is a slim, lightweight, and high-energy-density Li-Po cell designed for compact electronic devices that require stable and long-lasting power. Built with advanced lithium-polymer chemistry, this battery delivers reliable performance with a nominal voltage of 3.7V and a capacity of 550mAh, making it ideal for portable and wearable devices.

With typical dimensions of approximately 3.1 mm thickness × 22 mm width × 78 mm length, the KP 312278 battery fits easily into thin enclosure designs while still providing sufficient runtime. Its aluminum-laminated flexible casing ensures durability, while maintaining low weight without compromising energy storage.

Many versions of this battery come equipped with an integrated Protection Circuit Module (PCM), ensuring essential safety features such as over-charge protection, over-discharge protection, short-circuit protection, and over-current protection. This makes the battery safe and dependable for continuous use in consumer electronics.

Thanks to its low internal resistance, the KP 312278 supports efficient discharge and faster charging when used with standard CC/CV Li-Po chargers. The battery is optimized for applications that demand compact power sources with stable voltage and long cycle life.

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Features

• High Energy Density: Provides excellent power capacity in a slim and lightweight form factor.
• Stable 3.7V Output: Ensures consistent and reliable performance for sensitive electronic circuits.
• 550mAh Capacity: Suitable for medium-duty portable and wearable applications.
• Compact Slim Design: Approx. 3.1 mm × 22 mm × 78 mm, ideal for thin device enclosures.
• Long Cycle Life: Supports hundreds of charge–discharge cycles with minimal capacity loss.
• Built-in Protection Circuit (PCM): Offers over-charge, over-discharge, short-circuit, and over-current protection (when included).
• Low Self-Discharge Rate: Maintains charge for extended periods during storage.
• High Discharge Efficiency: Low internal resistance allows smooth power delivery.
• Lightweight Construction: Aluminum-laminated flexible casing for safety and durability.
• Wide Operating Temperature Range: Suitable for various indoor/outdoor device environments.
• RoHS-Compliant: Environmentally safe materials.

Applications

• Bluetooth devices and IoT modules
• Slim smart gadgets and handheld electronics
• Wearable devices and health monitoring instruments
• MP3/MP4 players and portable audio products
• Mini robotics and embedded systems
• Rechargeable LED modules and small sensor units