Energizer Lithium Batteries

I have been comparing prices of these batteries over the last few weeks. For a while I couldn't find it cheaper than $15/pk, which was retailing at Challenger. It was $15.20 at Carrefour.

I bought three packs today for $12.90/pk at Fairprice @ Clementi Mall.

The only time I go for these batteries is when we are going on a trip. They seems to last forever and are markedly lighter than regular batteries