The problem stands that to my knowledge there is about $60,000 worth of NiFe cells (4 buyers) that have been purchased from China that are not being used. There probably was an initial #10,000-$20,000 (20%)or so, that was overcharged by the seller in Colorado in a bait=and-switch routine. Only one of the 4 orders have filed with the Better Business Bureau. Chinese representatives of this manufacturer do not wish to become involved in the problem. Their product may or may not even work as no successful installations have been reported to my knowledge from Seiden. Zhuhai or ChangHong wet NiFe pocket plate cells. These 4 buyers wish that they knew if their cells can be used. Future buyers beware!