Hello,
I would like to know if you have ever used a Portable Car Jumper / Power Bank. I was wondering whether it is worth getting one and also if it actually helps to jump start a 4x4 engine in emergency. Ones, I saw a guy jump starting a car but it was a 1.2L engine and it worked. Secondly, I was thinking whether it is safe to keep such kind portable battery in the car considering the high temperature of the car especially in summer.
I would be really appreciate if you can share your experience, recommendation and any required specification.