I have Bosch battery on Lexus 400. The battery died and I jump started the car several times.
The car however dies when I remove the cable from the car. I using self contained jump start unit.

Help the the die dies each time after the cable are removed. Help

 

It sounds like the alternator is not charging and when you remove the jumper pack the voltage drops too low.

Surgest check fuses and alternator connections

 

Sounds like the alternator. How old is the battery? What warning lights are lit up on the dash?

 

Yes, lights are lighting up dash while I was driving.