The YXL 402030 is a rechargeable Lithium Polymer (Li-Po) battery designed for compact electronic devices that require a lightweight and portable power source. With a nominal voltage of 3.7V and available in two variants: 350mAh and 300mAh, this battery is ideal for applications such as wearable electronics, small IoT devices, wireless sensors, Bluetooth modules, RC toys, and portable gadgets. It features a compact 40mm × 20mm × 3.0mm form factor and typically comes with a built-in protection circuit (PCM) to prevent overcharge, over-discharge, and short-circuit damage.
🔹 Key Features:
• High energy density in a small size
• Rechargeable and long cycle life
• Stable 3.7V nominal output
• Available in 350mAh and 300mAh capacity variants
• Integrated PCM (Protection Circuit Module) for safety
• Low self-discharge rate
🎯 Applications:
• Smart wearables (e.g., fitness bands)
• Portable audio devices
• DIY electronics projects
• Small remote-controlled (RC) devices
• IoT sensor nodes
• Rechargeable LED lighting
