What he said. But the best and safest way is to buy a portable jump starter. I got the Micro Start XP-1 from 4wheelonline, and it works extremely well. I can even use it to charge my phone and tablet.
Nice wheels. Specs? How's the ride with those low profile tires? I'm currently checking these wheels and tires but I'm still undecided whether to get a bigger set or stock size for my wife's LS600h.