【Large Capacity Battery】Capacity:3000mAh/11.10Wh;Volt:3.7V;Battery type:Li-Polymer;Dimension 94.25 x 31.52 x 9.20mm. | 【Fully compatible and high stability】 Compatible with JBL Flip 4 ,Flip 4 Special Edition，fits part number GSP872693 01. | 【Installation & Charging】Since it makes use of cutting edge technologies to secure the security of high performance chips, installation is relatively simple.Noted:please mind the direction of "+" red and "-" black wire when install the battery.You could watch YouTube videos for installation instructions. | 【SAFE FOR USE】You may charge without concern thanks to the built-in short circuit, over-current, over-charge, over-voltage, and overheat protection circuits. | 【Perfect After-sale】We provide a 12-month warranty as well as pleasant, 24-hour customer care along with 24/7 email assistance.