2-power Main Battery Pack - Akku - 53 mAh (2P-KT.00407.009)

When your compact device's original battery can no longer hold a charge, this 2-Power main battery pack steps in to restore dependable power. It is a direct replacement for many small electronics, from wearable sensors to handheld remotes, ensuring your equipment runs smoothly throughout the day. The 53 mAh lithium-ion cell delivers consistent voltage and is built with safety in mind, so you can swap it in and get back to work without worry.

Key specifications

• Capacity: 53 mAh
• Nominal voltage: 3.7 V
• Energy rating: 0.196 Wh
• Battery type: Lithium-Ion (Li-Ion), rechargeable
• Number of cells: 1
• Connector type: 2-pin JST-style connector
• Protection features: overcharge, over-discharge, short-circuit protection
• Cycle life: 300–500 charge cycles
• Operating temperature: -20°C to 60°C
• Storage temperature: -20°C to 45°C
• Charging voltage limit: 4.2 V
• Discharge cut-off voltage: 3.0 V
• Form factor: compact pouch cell
• Certifications: CE, RoHS

Why choose it

This battery is engineered for reliability and safety. The integrated protection circuit guards against common battery failures, extending the life of both the battery and your device. Its compact pouch cell design fits neatly into slim housings, and the JST connector ensures a secure, hassle-free connection. With 300–500 cycles, it offers long-term value for low-power electronics that need frequent recharging.

Ideal use cases

• Replacing the battery in wearable devices such as fitness trackers or medical sensors
• Powering small remote controls, key fobs, or IoT sensors
• Restoring functionality to handheld instruments or portable gadgets
• DIY electronics projects requiring a compact 3.7 V Li-Ion cell

Good to know

Before installation, verify that your device's original battery matches the voltage, capacity, and connector type of this unit. The battery should be charged with a compatible Li-Ion charger that respects the 4.2 V limit. Store it in a cool, dry place when not in use, and avoid exposure to extreme temperatures to maintain performance.