• This battery is specially designed for car starter
• Smooth current, high charging efficiency, long life
• Can withstand the strong current impact of the car start instantly
• Rubber protective cover is integrated design, stable output, waterproof, dustproof, and anti-metal object contact 
• DO anti-reverse socket design. Made of pure copper, it prevents the user from inserting the battery clamp wires backward, protecting your car and starting power

Specifications:

• Product size: 128 x 72 x 22mm
• Weight: about 300g
• Applicable models: support within 12V 4.0L cars
• Marked capacity: 12000mAh
• Actual capacity: 6000mAh   
• Start output: 400A  
• Input: 15V1A       
• USB output: 5V2A
• LEDswitch: long press on the key