Features: The battery is small and compact, you can quickly complete the installation and get it into operation. Crafted with top notchs materials, this compact and portable battery module delivers a stable power output for your car. Perfect for car owners and automotive technicians seeking a convenient battery solution. Whether you're going on a road trip or facing extreme weather conditions, this battery provides a dependable power source for your vehicle. Say goodbye to battery related worries with this easy to install and long lasting battery module. Specifications: Material:Composite Material Size:As Picture Shown Color:Black For F20 F30 F31 G21 Part Number:84102447710 2447710 84109361678 Rated voltage: 8.0V Battery capacity: 330mAh Package Includes: 1x Emergency Battery note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.