Introducing the 1800mAh 3.7V Replacement Battery designed specifically for COWIN E7 and E7 Pro Bluetooth headphones, as well as Coinsound E7 and E7 Pro headphones. This high-quality battery from STARTONG ensures that you have the power you need to enjoy your music without interruption. With a robust capacity of 1800mAh and a nominal voltage of 3.7V, this Li-ion Polymer battery offers a safe and reliable power source that is certified by UL, CE, UN38.3, and RoHS.

This replacement battery is engineered to be 100% compatible with the original battery, providing you with peace of mind. It boasts over 300 cycles of life, ensuring long-lasting performance for your headphones. Furthermore, it comes with a generous 180-day warranty, underscoring the confidence in the product’s durability.

When using the battery, it is crucial to follow safety precautions to ensure optimal performance and longevity. Please note the following cautions:

• DO NOT ATTEMPT TO OPEN OR DISASSEMBLE THE BATTERY.
• DO NOT CRUSH, PUNCTURE, OR DISPOSE OF IN FIRE OR WATER.
• DO NOT EXPOSE TO TEMPERATURES ABOVE 60℃ (140℉).

In summary, the 1800mAh 3.7V Replacement Battery for COWIN E7 and E7 Pro Bluetooth headphones is an essential accessory for anyone looking to maintain the performance of their headphones. Its high capacity, safety certifications, and compatibility with multiple models make it a smart choice for music lovers who demand reliability and quality.