Need Help Car Jump Starter Circuit

[asif420]

Team,

i need help to make the circuit for 12v for car jump starter for emergency i am shwing the link this link will clear what i want to make the cheapest solution needed?

https://www.amazon.com/LEMFO-Starter-Multi-Function-Emergency-14000mAh/dp/B00KCD05Y6

 

[BradtheRad]

Do you hope it will start a car engine? At 14,000 milliAmp-Hrs, that item does not look as though it puts out sufficient current.

Or it might, but only if it can produce about 500 Amperes for several seconds. That's what it takes to start a car.

This is around 1 A-Hr (calculating with pure math). Neverthless it will take a special kind of battery, with a very low internal resistance, to provide such high current. But what do I know? I've seen surprisingly powerful specs for Lithium batteries as time goes by.