I just duplicated your order to test out the Thunderpower site -- they recently changed from Fedex to UPS but I have ordered since then and had no issues. Anyway, my order came up at $20 (and change) for the battery and $12.34 for shipping, so I guess I would try the order again and if it still comes up as $90 shipping, call Kim at TP (though I believe they are closed today and tomorrow - Mon & Tue - for the 4th, and the sale will be over at 11:59 Tuesday evening.