surrette 6-cs25ps. I'm off grid & have a 24 volt system that i invert to 240 volts to run my home. I have 12 (4 dyed a year & 1/2 ago) now have 8, 11 year old rolls s460 batteries & I'm getting less than 220 amp hours before they get below 24 volts & need a charge. I have been off grid for 6 years now (I bought my batteries used). I have been told not to let my batteries get lower than 24 volts with a normal amp draw (4 - 14 amps). they do get below 24 volts when I'm using alot of amps (25 - 100 amps). Will 4 new surrette 6-cs25ps let me have 1156 useable amp hours with a normal amp draw?