... REF!Controller40A48V EPIP6021#REF!Inverter1500W48V SK15001#REF!Battery400 AH2V deep cycle24#REF!Power boxstainless power box with lightning arrestor, ... than 20sets, 7300USD/set4.WarrantySolar panel: 5years. Controller, inverter,battery and Power box: 2years, brackets: 5years. All other small ... discharging with a series of protection and management functions.Battery is the device to store power for the ...