► Walrus G3: https://batteryevo.com/product/walrus-g3-12k-inv-22-kwh-ac110-220v-72n/t360e/37/ ► Expansion Battery: https://batteryevo.com/product/walrus-g3-extension-pack/t360e/37/ ► Vatrer Server Battery: https://www.vatrerpower.com/products/vatrer-51-2v-100ah-lifepo4-lithium-solar-battery-built-in-100a-bms-max-5120w-load-power?sca_ref=7181742.oWf74jbNss The Walrus G3 is unmatched in terms of a base system that has extreme output power, incredible battery capacity, solid solar input, and most importantly, EXTREMELY AFFORDABLE! It's literally less than building a DIY system. What else could you ask for?