This is power box 700 watts

This power box 700 wats come 1 usb port 2.1A 3 out let 110 Volt have part tell you how percent 🔋 but i add 2 usb port type A and B cost $13.00 next new battey 12Volt lead acid 18Amp cost $100.00 plus Volt and Amp meter cost about $25.00 plus power box cost $200.00 plus siwtch cost $7.00 so need. $375.00or it i add upgrade my self not asked if can go lower its guys i have add sorlar charger controller you charge 11 cell phone