3.7V 90mAh Rechargeable Li-ion Battery – Ultra-Compact Power for TWS Earbuds & Micro IoT in Pakistan

Overview

The 3.7V 90mAh Lithium-Ion Battery is an specialized power cell engineered for micro-electronics. Despite its tiny size, it delivers a stable 3.7V nominal output, making it perfect for driving low-power microcontrollers and Bluetooth chips. These batteries are most commonly used as high-quality replacements for TWS earbuds or in the development of “invisible” tech like smart rings and medical patches that monitor vitals in real-time.

Key Features 

• Micro Footprint: Small enough to be integrated into wearable devices without adding bulk.

• Stable Discharge: Provides a consistent voltage curve, ensuring your Bluetooth or sensor connections stay stable until the battery is nearly empty.

• Lightweight: Weighing less than 2 grams, it is ideal for devices that need to be worn comfortably for long periods.

• Rechargeable: High cycle life allows for hundreds of charges, making it a sustainable choice for portable gadgets.

Technical Specifications

Perfect For: 

• Audio Tech: Replacement batteries for Bluetooth earbuds (TWS).

• Smart Jewelry: Powering smart rings, necklaces, or earrings.

• Biomedical Sensors: Tiny patches that track heart rate or temperature.

• Spy Gadgets: Powering micro-voice recorders or hidden cameras.