That is definitely a good reason to present and review this fantastic device. This portable jump starter definitely is a very powerful device as it reaches 1700 peak Amps and 425 Cranking Amps! That is high for sure. In the further text, we will explain what this actually means.In all my previous reviews we were testing and reviewing mini jump starters which are also multifunction devices and can be used as a power bank as well. That means you can charge most of your devices and gadgets with this useful compact jump starters. JNC660 is not that kind of device. What he does is jumpstarting a car or even heavy-duty machines and also has a 12V outlet. Voltmeter provides charge status of onboard battery. The item "Portable JNC660 Battery Booster Pack Charger Power Jump Starter Box Heavy Duty" is in sale since Friday, September 24, 2021. This item is in the category "eBay Motors\Automotive Tools & Supplies\Battery Testers & Chargers\Chargers & Jump Starters". The seller is "wesjo-1827" and is located in Valdosta, Georgia. This item can be shipped to United States.