High Tech Pet Products review: Cost of batteries and cost of shipping batteries

I am complaining about the ridiculous cost of two little batteries that we have no choice but to use, but mainly the charge of shipping them. It was bad enough up to now that the cost of shipping ($16.95) was more than the cost of the batteries but this time I went to order and they are charging $54.00! That comes out to $34.00 each battery. These batteries could be put in an envelope and mailed with a postage stamp. Instead they come in a big box. The whole thing is a big rip off.