Battery 1)   http://www.trojanbattery.com/Products/J185H12V.aspx

Price :  $ 650.00  Each Retail

The formula for the batteries is. as follows

watts divided by  volts = amps  X  1.5   = Battery bank size (AH)

7000       /                24   =  291    X  1.5  =  437 AH

You would need 4 batteries of this size for the 7000 W 24  Volt inverter

Battery 2)  http://www.trojanbattery.com/Products/T-1275Plus.aspx

Price :  $ 500.00  Each Retail

The formula for the batteries is as follows

watts  divided by  volts = amps  X  1.5   = Battery bank size (AH)

7000       /                 24   = 291     X   1.5  =  437 AH

You would need 6 batteries of this size for the 7000 W 24  Volt inverter

battery 3)  http://www.trojanbattery.com/Products/8D-AGM12V.aspx

Price :  $ 1000.00 Each Retail

The formula for the batteries is as follows

watts  divided by  volts = amps  X  1.5   = Battery bank size (AH)

7000       /                24    =  291    X   1.5  =  437 AH

You would need 4 batteries of this size for the 7000 W 24  Volt inverter 

 

pick a battery of your choice no Jell batteries period.