2-power Main Battery Pack - Akku - 50 mAh (2P-02DL008)

For engineers prototyping compact IoT sensors or hobbyists repairing a wearable fitness tracker, this 2-POWER 2P-02DL008 battery pack delivers a dependable 50 mAh charge in a slim, lightweight pouch cell. The bare wire leads allow direct soldering or connector attachment, making it a flexible choice for custom electronics builds.

Key specifications

• Rechargeable Lithium Polymer (Li-Po) chemistry
• Capacity: 50 mAh
• Nominal voltage: 3.7 V
• Energy rating: 0.185 Wh
• Connector: Wire leads (red positive, black negative)
• Integrated protection circuit (overcharge, over-discharge, short-circuit)
• Max charging voltage: 4.2 V
• Discharge cut-off voltage: 3.0 V
• Cycle life: >300 cycles to 80% capacity
• Operating temperature: -20°C to 60°C
• Storage temperature: -20°C to 45°C
• Form factor: Pouch cell
• Certifications: CE, RoHS
• Internal resistance: <100 mΩ
• Max continuous discharge current: 25 mA (0.5C)
• Max charge current: 25 mA (0.5C)

Why choose it

Built with a polymer casing and a robust protection circuit, this battery ensures safe operation across a wide temperature range. Its low self-discharge and stable voltage output make it a reliable power source for devices that require consistent performance over hundreds of charge cycles.

Ideal use cases

• Small electronic devices such as Bluetooth beacons and remote sensors
• IoT sensor nodes and data loggers
• Wearable health monitors and fitness trackers
• Medical devices like portable diagnostic tools
• DIY electronics and prototyping projects

Good to know

The wire leads are not pre-terminated with a connector, giving you full control over the connection method. Always observe correct polarity (red = positive, black = negative) and use a charger designed for 3.7 V Li-Po cells with a 4.2 V charge limit. For best longevity, store the battery at 3.7–3.8 V per cell in a cool, dry place.