Living in a rural area where power fails frequently due to lightning storms and hurricanes, one has to rely on D-cell batteries to power flash lights, lanterns and radios for extended periods. Due to the low prices of the Rayovac value packs at Target/Amazon, we tried these batteries several years ago. We've been extremely pleased with the performance of all the new Rayovac batteries. I really don't think it's fair to compare these batteries to Duracell since the Rayovacs cost half as much. But, since everyone else does compare them, I'd estimate the Rayovacs last 85-90% as long as Duracell batteries. If you're looking for a quality battery that won't break the bank, look no further.

This work far better than "heavy duty" batteries or some of the other non-premium brands I have used in the past. They seem to last very long for the money. I will continue to buy these rather than pay twice as much for a Duracell.

Until I bought several weeks worth of Rayovac Alkaline D cells, I used Duracell Alkaline D cells.

Every week I run a 3-CD changer (JVC _CX-XC370) for 11 hours worth of water aerobic classes, at the same volume level (Volume #10), from Tuesday to Thursday. The Duracells lasted all 11 hours (and might last even longer). In contrast, these Rayovac D cells for the last five weeks have consistently died during the second half of the next-to-last class (after hour 9.5 and before hour 10).

I would not buy their products, because if any of their batteries corrode, they will not replace the product that was damaged. The always find a loophole to say they will not replace what was damaged! A total let down. A waste of money !!!!

The leader in the field does it again! A great product, but I sometimes feel the hype is too much.

I would suggest it if it was the only alternative.