Here's a power supply that I've been using for over a year now. It typically runs my rig all night during the summer just on battery, but I've been plugging it in and running it the last few weeks because the nights are longer and I'm running my dew heater higher. It also allows for charging using solar panels. https://www.amazon.com/gp/product/B086X29L2B/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1