CATL 228Ah LiFePO4 12.8V Lifepo4 Battery Module. High quality CATL prismatic cells. 2.93KW total storage, 3KW. Bought for a project and never came to fruition.
You could make these into 24V 36V or 48V very easy. You would have to add a BMS, or not, the cells are balanced. These is a connector at the end but I don't have the plug for them.