Renogy 12V 400Ah Bluetooth Lithium Battery w/Self-Heating
This battery can be fully charged in 1.5 hours with a maximum continuous charging current of 300A. It has colorful LED indicators on top that show battery level, battery status, and heater status. Price drops from $3,499.99 to $1,699.99 with code "7A2LZ2CU". Shipping is free.