I Currently have 4 - 48v strings of Deka Unigy II 3AVR95-33 with an original install date of Nov. 06 - Location Orlando - Price is $500 per 6v module. These have been float charged in a temperature controlled room since their installation. These are 20 year to 80% of dod - So there are many good years or cycles left on these batteries. If you are interested in these or any other batteries I may have in the future call or email me AJ 520-401-6448 mypocketchange@gmail.com