increasing battery storage

[galaxieflier]

I am looking to replace my current single string of 8 - 6v batteries with two strings of 8.
my full system is
9-suntech 175 watt modules and 9 up solar 185watt panels in strings of 3,
8- Deka 6V for 48v. system
outback VFX 3648 inverter,
outback FM-60 charge controller.
Propane 15KW Genset
System Installed August 2009...Hence the need for new batteries


I am looking to go to 16 Trojan L16H's

two questions
1. my understranding is they should be wired as two strings of 8 in series connect the positives of the two strings and the negative of the two strings then pull the + and the negative off to the charge controller.... correct??

2. given my system is there anything else I need to consider or change??

[Mike90250]

is this new battery bank larger than your old one ? If so, does your solar have the capability to recharge it at 10% of the ah rating of the bank
( 800ah bank needs 80a of charge current)
if not, you will need to add more charging, either more solar or generator

9x 175w
9x 185w
I come up with less than 60A which gives you only marginal recharging.

[galaxieflier]

Thank you Mike.
Yes currently only one string of 370ah batteries looking to move to two 430ah.
There is a Generator inplace but the point was to lessen the usage of it not set us up for more.