https://www.ebay.com/itm/1264751900...customid=648543fed2dd11ef9c099e0b1c4d3a3c0INT ECO-WORTHY 5120Wh Home Backup Power Supply 48V 100Ah LiFePO4 Battery + 5000W 48V Solar Hybrid Inverter on sale for $1299.99 - 15% w/ coupon code FRESHSTART at checkout = $1104.99. Shipping is free.