12V 60W Peltier Cooler (Rl) has a 300A 12V switch cutting the positive of the battery, with a SMPS based battery charger running off 120VAC with a power switch (Which in real life controls a 2kW relay to the 120VAC power strip I installed) to the charger
This is what I have currently build into the firewall of my old truck that just sits and it stays nice and chilly in here :)
