7.4V 350mAh Rechargeable Replacement Battery for RC Helicopter with Overcharge Protection for RC Era C187 EC135

[SAFETY PROTECTION] Safety is our top priority. This battery features multiple built-in protection systems, including overcharge, over-discharge, overcurrent, and short-circuit protection. These protections automatically prevent potential hazards during charging and flight, giving you peace of mind and ensuring your helicopter and battery remain in excellent condition. [STABLE OUTPUT POWER] Equipped with advanced lithium technology, this 7.4V 350mAh rechargeable battery delivers consistent voltage and stable power throughout its lifespan. Enjoy extended flight times of 13-15 minutes per charge, with a 40-minute fast charge cycle that gets you back in the air faster, providing a more reliable and enjoyable flying experience. [LIGHTWEIGHT COMPACT DESIGN] Designed with a compact and lightweight structure, this battery adds no extra weight to your RC helicopter while maintaining a low density. High energy. Its small size (approximately 3.7 x 2.7 x 1.4 cm) maximizes performance and endurance, allowing for better maneuverability and longer hover times without sacrificing power or stability. [PERFECT COMPATIBILITY] This RC helicopter battery is specifically designed to fit the ERA C187 and EC135 RC helicopters, ensuring a seamless and secure connection. With its standardized interface and plug-and-play design, you can directly replace your old battery without any modifications or complicated installation processes, saving you time and effort. [EASY INSTALLATION & QUICK SWAP] Designed for this battery, it features a user-friendly plug-and-play interface that makes installation and swapping easy. Whether you're a beginner or an experienced hobbyist, you can quickly swap the battery during sessions to extend your playtime and enjoy uninterrupted fun with your ERA C187 or EC135 RC helicopter. EC135.