[Duncan]

Hi
I would suggest that you get a Chevy Volt Battery
They are about $2000 and consist of a number of modules
Mine had two 24v 1 kwh modules and seven 48v 2 kwh modules
The later ones are a bit higher voltage
so you can easily reconfigure from the 400v Chevy into two 200 (ish) modules - go as high as your controller can manage - just spotted Soliton so controller voltage is not a worry

Your present pack is nominally about 13 kWh - but due to peukert actually about 7 kWh - the Volt pack is about 16 kWh - and peukert will not bother you

http://www.diyelectriccar.com/forums/showthread.php/2012-chevy-volt-battery-93101.html

If you use the whole pack you will probably have to replace the charger and DC-DC but you could use most of the pack and end up with two parallel strings of around 150 v

 

[piotrsko]

Split the pack and end up with 194 vdc nominal. 120 module with the 72 , both 96. And do worry about pack voltages since solitons have a 350 volt max input limit