We've been using the zero-fume, zero-noise power of Goal Zero's Lithium station, and now with their Yeti 5. 0KW LI Link & 4-Tank Kit we can increase our power bank in a big way. Each stackable lead-acid battery adds 1. 2kWh to our energy storage system, allowing us to back up essential circuits in our home in a power outage. With that amount of juice, we can live the vanlife without needing to completely dirtbag it.