Lipo charging from cigarette lighter in car!

[tdi250]

Has anyone got any experience with charging their lipo's from their cigarette lighter in their car?

I have a Core UAC 50 charger which has a 12V input option or a 230V option. I'm considering getting one of these http://www.maplin.co.uk/75w-mini-inv...-socket-398481

I assume this will be ok for the 230V input as it's rated at 60W continuous use and the Core max output is 50W

I'm racing outdoors tomorrow and it's likely to be raining so didn't really want to have the bonnet open and messing about connecting it direct to the battery.

ANy help is greatly appreciated.

Wes