We've just taken delivery of a new Burstner Nexxo T660. It's been sitting in the drive since Thursday afternoon and I checked the voltage on the monitor panel tonight and it says hab battery is 12V. So immediately plugged in to the mains. 90Ah battery. MH is alarmed and the media unit (one of these fancy Zenec all singing/dancing things) is connected to the leisure battery (or so dealer told us). I'm a bit concerned about such a quick drop in volts. I'll put a meter in circuit to check the drain tomorrow (but a bit concerned about disconnecting the battery from everything (EBL99 fitted)). Is this to be expected on a modern MH? We've not knowingly put any load on the leisure battery.