If the arc reactor can be removed , why does n't Stark remove it in Iron Man 2 to circumvent the palladium poisoning ?
Iron Man 3 -LRB- 2013 movie -RRB- : -LSB- Spoiler alert -RSB- Why does Stark need a truck battery to recharge the Mk . 42 while , for the previous armors , the Arc reactor did the job ?