motacyclist
Colin
Super Poster
Lifetime VIP Member
Current is around 4.8~5A, for periods of 25 seconds
5 amps at 240v = 1200 watts, but 1200 watts at 12v = 100 amps, equivalent to turning the starter for 25 seconds. The main vehicle battery would be designed to do this (not for long periods though); but the leisure batteries are not designed for high power outputs.
Try a Moka pot on the gas ring ... or a Handpresso.