Batteries Ordered

Well I really am going to use the expensive Lithium battery option I talked about.
The day before yesterday I sent my order to Headway for:

• 12 of 48V20AH battery packs (each pack has 32 cells).
• 12 of Battery Management System (BMS) for above packs.
• 12 of 48V 3 Amp chargers.
• 5 spare 38120S cells (the blue ones a few posts below).

A few bank hiccups but I have partially paid for them and will complete payment today.
They are coming by sea so it may take a while.
The packs I ordered are similar in appearance to the one shown below (white ABS case).