This fridge is probably perfect dimensions with what it offers especially with the dual zone option Other fridges seem to be massive in size with this setup Good video
I just went into the shop armed with a tape measure to find a good option for you here, Rich, and it turns out that there aren't any. This MyCoolman fridge is slightly large for other 55 litre fridge slides, so you'd need to step up to a 70L Dometic slide or the EvaKool slide, which won't be the most efficient use of space, unfortunately. MyCoolman don't make slides for their fridges either so you'd probably have to look for a brand like MSA who make their own fridge slides to suit multiple fridge brands. ~ Ben
Looks like it's to do with the battery protection level being reached, i.e. your battery may be flat. I'd recommend reading up in the user manual here - www.snowys.com.au/Product/ProductAttachments/c6b5764f-f413-4661-af0c-5f49f3ed6ffd. ~ Ben
That's not what these are designed for, Carrow, the MyCoolman range are made to be installed in a 4WD or Ute canopy rather then be wheeled around. They also need a 12V or 240V power source to operate. ~ Ben