Battery Jumpstarters will leave you STRANDED if you don't know this trick. I hate how these work but as long as you know you will be able to jump start any vehicles.

Hulkman Jumpstarter: https://amzn.to/3USAHCX
Favorite Tools: https://www.amazon.com/shop/silvercymbal

Disclaimer:
Due to factors beyond the control of Silver Cymbal, I cannot guarantee against improper use or unauthorized modifications of this information. Silver Cymbal assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Silver Cymbal recommends safe practices when working on machines and or with tools seen or implied in this video. Due to factors beyond the control of Silver Cymbal, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Silver Cymbal.