3.7V 1200mAh Li-Ion Lithium Polymer Battery KYS-103040 Rechargeable for DIY Projects & Electronics

Description

The 3.7V 1200mAh Li-Ion Lithium Polymer Battery (KYS-103040) is a compact, high-performance rechargeable power source designed for DIY electronics, hobby projects, toys, robotics, and various low-power applications. Its slim rectangular design, stable voltage output, and long cycle life make it one of the most reliable lithium polymer cells available for creators and technicians. At Rafiq Electronics, we supply only high-quality and fresh Li-Ion cells to ensure maximum performance and safety.

🔋 Key Features & Advantages

✅ High-Quality Li-Ion Polymer Cell (1200mAh Capacity) – Delivers stable 3.7V output, suitable for a wide range of electronic circuits and rechargeable devices.
🔌 Built-in Protection Support (When paired with BMS) – Safely works with charging modules like TP4056 for overcharge and discharge protection.
⚙️ Perfect Size for DIY Projects – Compact dimensions 43 × 30 × 9.5 mm, making it ideal for space-limited applications.
🔧 Multipurpose Compatibility – Works with toys, Bluetooth speakers, power banks, LED projects, Arduino setups, wearable devices, and solar-powered gadgets.
🔁 Long Cycle Life – Designed to provide hundreds of charge/discharge cycles with proper maintenance.
🪶 Lightweight & Slim Design – Makes it suitable for portable and embedded systems where weight and size matter.
⚡ Stable Power Output – Ensures smooth performance in sensitive circuits requiring constant voltage.

📐 Battery Specifications

• Model: KYS-103040

• Rated Voltage: 3.7V

• Capacity: 1200mAh

• Power Rating: 4.44Wh

• Dimensions: 43 × 30 × 9.5 mm

• Type: Rechargeable Lithium Polymer (Li-Po)

• Wiring: Pre-attached two-wire terminal (Red + Black)

• Charging Requirements: 4.2V constant voltage charger (e.g., TP4056 module)

🧩 Common Applications

This Li-Po battery is widely used in:

• DIY electronic projects

• Arduino, ESP8266, ESP32 modules

• LED lights and wearable tech

• Mini power banks

• Rechargeable toys and remote-control devices

• Bluetooth speakers and audio gadgets

• Solar powered miniature systems

• GPS trackers and small robotics

• Portable handheld tools

• Smart devices and prototype development

🔒 Safety Notes

• Always use a proper Li-Ion/Li-Po charger

• Do not overcharge above 4.2V

• Do not discharge under 2.7V

• Keep away from heat sources

• Do not puncture, crush, or misuse

When purchased from Rafiq Electronics, you receive fresh, tested, and reliable lithium polymer batteries ideal for professional and hobby use. Our products are carefully checked to ensure stable capacity and long-term durability so you can confidently use them in DIY builds and commercial projects.

If you need help choosing a suitable charger module or battery protection board, Rafiq Electronics can guide you with compatible options for safe and optimal performance.