Hi!
"normally" means normally.
About 95 % of the batteries are working very well (1800mAh). But sometimes, there are some (5 %), who have less then 800mAh (that's a problem of the maxcell batteries).
But I can't charge every battery and test it (that takes to much time). The only thing I test is, if it is working. If they don't, they don't go out (for that they don't freeze your Z ).
So, If there are some batteries, who are not working, I am very sorr!
But it's no big thing. Send the battery back, and you get a new one.
Shipping to US takes about 1 week.
Regards
Ludwig