After months of obsessing and bugging members here about the perfect lifepo4 battery I chatted with Amy about two 24v 200ah in series for a 48v system. The website showed only cells but she was quick to reply with photos and more questions than I could answer. She had photos which look similar but not identical to the 24v 200ah battery at Xuba. She asked about charge/discharge rates and brand of BMS but seemed to know what members here like which isn't really surprising. She will get back to me on the price. For anyone who has ordered battery banks from her are there any special requests I should ask such as battery types, I would assume she will supply grade A or should I specify? It's my first order for my first system and don't want to screw up. I thought I'd gleaned more information here than I did.