https://www.ebay.com/itm/1278840437...&campid=5337259887&toolid=10001&customid=9955 ECO-WORTHY 2-Pk ECO-WORTHY Cubix100 48V 100Ah LiFePO4 Lithium Battery w/Bluetooth + 48V 100A Battery Charger on sale for $2,099.99 - $500 with coupon code EWORTHYBATT500 at checkout = $1,599.99. Shipping is free.