Jumper Leads

You really want the thickest you can afford (and when I say thicker I'm refering to the copper core not including the insulation) as the problem with thinner/cheaper leads is you get voltage drop as the leads heat up due to the large carrent draw. Also make sure the cables have a good connection to the clamps because you will have the same problem with a high resistive connection.

Leroy

Wayne,

The 400 amp ones will be best, and with a 98 Prado, you need the spike protection.

Get heavy welding cable from BOCS or CIG or whatever they call themselves these days and at least 8-9 metres long. You won't regret it.