The Best Solar Kit in The Industry UPS Solar has always sought to use the very best materials and process practices. Get your FREE Battery quote here System Size*5kWh Fox Storage System with 2 x 2.5kWh Lithium Ion Batteries7.5kWh Fox Storage System with 3 x 2.5kWh Lithium Ion Batteries10kWh Fox Storage System with 4 x 2.5kWh Lithium Ion Batteries12.5kWh Fox Storage System with 5 x 2.5kWh Lithium Ion Batteries15kWh Fox Storage System with 6 x 2.5kWh Lithium Ion BatteriesName* First name Last Name Telephone Number*E-Mail Address* NameThis field is for validation purposes and should be left unchanged. High Voltage Easy Installation High Efficiency Expandable System 90% DoD HV Fox 2500 Datasheets 2.5kWh Capacity Scalable to 17.5kWh 98% Charge/Discharge Efficiency 90% Depth of Discharge Wide Temperature Tolerance Easy Installation CAN/RS485 Communication High Voltage