Kipor 1000KW comes highly recomended here.... been running mine all day for three of us, so a total of 5 chargers, 3sets of tyre warmers, soldering iron, laptop, tyre sander, the works... left it going all day on the smart throttle, and only used less than 3 litres of petrol (~1tank and a 1/4), with it running non-stop for about 9hours. For the ease of use over having to hall a heavy 12v, and remembering to charge it, gets my vote. Plus you can split the fuel cost between you
HiH
Ed