This is a super capacitor car starter that has no battery Is says good in extreme weather at -40°F as well. Here is a review on youtube for more info

Exactly, the Autowit super cap doesn't have a battery inside. As they say, it's a batteryless unit. Amazon link: https://www.amazon.com/autowit-Battery-less-Ultra-Safe-Emergency-Technology/dp/B079HL6MMM/ref=sr_1_2?ie=UTF8&qid=1532583685&sr=8-2&keywords=autowit