Product description : Technical specification: portable car jump starter Capability:9000mah Input:12v/1a Output:5v/2a, 12v car power bank Charging time:Approx 3h Start current:200a Peak current:400a Size:132*75*24mm Weight:300g Operation temp.: -20? ~60? Life time:>1000 cycles Certification:Ce fcc rohs Protections:Short circuit protection, over charge protection and discharge protection - Manufacturer: shenzhen uh-tech co., ltd, main products: car jump starter , sweeping robot , car charger, car air purifier. Email us : maggie at uh-tech.Net