I have a FW 10/7 Home LiTE and want to expand which leaves me with two options, either I sell my 10/7 and buy a bigger battery, or I purchase a used 10/7 and parallel it to my existing. Either will work for me. My 10/7 is +/- 5 years old, perfect condition, just over 1,000 cycles and recently tested by support@freedomwon.