Great Battery

Battery works hard and long. The new battery design is much better than its predecessor. You can actually get your hand around the battery now to release it. It's true that the new battery will not fit in the old case. Hint: use a utility knife and alter the plastic case so the new battery fits.

A Little Pricey

Just purchased 2 14.4 Dewalt XRP batteries, the originals where at least 10 years old. But as with any battery they don't last forever. Could not see replacing with an 18 Volt when there was nothing wrong with the drill, a 1/2 hammer model. Charged the first one and could not believe the difference, made it feel like when it was new. Still using the first battery and its been at least 3 weeks since it was first charged. I'm not a contractor just a diyer, but they were still worth the money. If the price goes up anymore though for each battery then I'll look at the DeWalt 18 volt.If these last as long as the first pair, they will out last me.

Wow!

The difference between this battery and the "regular" 14.4v DeWalt batteries is like night and day. I was always fairly pleased with the performance I got out of my original batteries, but once I picked up one of these I was convinced that the hype is justified. Right out of the box I noticed that this battery is a bit larger and significantly heavier that the regular 14.4's. Once fully charged, I slapped it in my drill/driver and was AMAZED at how much more powerful this battery pack was. I have also been impressed with the run time between charges, but since I have not yet used it to build any decks, etc., I cannot say if the battery truly lasts 25% longer (or 40% or whatever).^M
^M
I highly recommend this as a quality product that performs amazingly well.