The battery for the JBL Charge 3 speaker is a powerful and rechargeable lithium-polymer battery with a capacity of 6000mAh and a voltage of 3.7 volts. It has been specifically designed for use in this speaker model and provides a reliable power source to maximize the device's usage. Weighing 180 grams, the battery is lightweight yet robust, making it ideal for mobile use. The device-specific size ensures easy installation and a secure fit in the speaker. This battery is not only environmentally friendly but also subject to labeling requirements, meaning it complies with applicable battery regulations. The use of lithium-polymer technology ensures high energy density and a long lifespan, allowing users to enjoy their music without interruptions. This battery is an excellent choice for anyone looking to maintain the performance of their JBL Charge 3 speaker.