Sealey pstart1000hd powerstart emergency heavy duty power pack 1000hp 12 24v sealey pstart1000hd p this 12 24v emergency power pack from sealey has a heavy steel case high power us manufactured battery and industrial quality switchgear making it suitable for starting most vehicles positive action power switch reduces risk of inadvertent damage by over voltage heavy duty copper cables provide efficient power transfer twin trips prevent damage to battery or internal circuitry p p ea