I have been looking for this for a long time. This jump starter works perfectly for my van up to 6 Gal up to 4.5 Diesel engine. It is not just a jumper starter but also a phone charger supply up to 5V USB as well as use as LED torch for the emergency. It is so easy to use, all you need to do it to put the right color plug and you are ready to go. It is portable, convenient and affordable for your need. What a jump starter
https://www.amazon.com/Markcars-Automotive-18000mah-Portable-Charging/dp/B078J4FYX9