Hi, Playing around with my wiring I’ve just noticed that when it’s connected to the mains and the fuse box has no draw against it it sits at around 13.6v, perfect. However, as soon as I turn the fridge on it drops immediately to around 12.4v and seems to sit around there for a minute until it drops steadily again for about a minute until it hits 12v then obviously dies as battery has nothing more to give. If I then turn the fridge off the battery returns to 13.6 within a minute as the mains kicks back in. Now, I’m sure this isn’t right as I’d expect the mains to keep up with the fridge draw, especially as it’s a compressor and supposed to be low power etc. So, anyone out there with an idea of where to start to diagnose? Fridge wiring? Faulty fridge? Dying battery?