I need help in figuring out how to increase my battery bank size. I currently have a 16 battery, KiloVault 2100 PLC battery bank set up 48 volt - 720ah total. Given type of battery I only have 360ah of available capacity. The batteries have been in service 12 months. My home has geothermal heating and cooling and while very efficient the system demands a significant amount of electricity that at times exceeds my battery bank's storage capacity. On the other end of my system the solar panel's ability to recharge the system far exceeds the battery bank's capacity most days having the battery bank up to 95% soc by 11:00 AM so I lose a large part of the charging day. My goal at minimum is to double the size of battery bank but not sure how to move forward; cost and battery type are at issue. Any help would be appreciated.