It does look like 2 of those accus are DOA, so we'll replace them under warranty.

Oh, right. Forgot alt-text:
A desk surface with a heap of silver colored accus, some still in plastic packaging. There's one old red accu in that mess. On the right is a Blue-Bot upside-down. There's also a screwdriver visible. In the background a keyboard. Generally it's just an all-around mess of accus scattered everywhere.