WEIZE 48V 100Ah LiFePO4 Lithium Battery, Built-in 100A Smart BMS, Up to 8000 Deep Cycles, 4800Wh Rechargeable Server Rack Battery, Perfect for Back Up System, Solar System

This 48v battery has 15 cells. It is much more common for 48v batteries to use 16 cells. That means there will be voltage differences between the two types, and your charging equipment may not be compatible. You'll now see some 48v batteries listed as 51.2v in order to differentiate themselves from these 15 cell oddities. There really isn't a good reason to purchase this, as you're effectively being shortchanged capacity and may end up with compatibility problems. Definitely don't mix and match.