Our brand-new Bluetooth Speakers Battery compatible with Jbl FG6CELL21700G is engineered to deliver long-lasting and stable performance. It is designed to meet rigorous standards, ensuring full compatibility with devices such as the Jbl partybox 520. This battery comes with a one-year warranty and has passed essential safety certifications including CE, RoHS, and ISO9001. Choose our Jbl FG6CELL21700G battery for a power solution that combines quality, safety, and convenienc