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First off, let me say that I have owned several DeWalt 24 Volt tools for nearly 10 years and have been VERY impressed with the power and durability of the tools. Perhaps this modified design will improve matters somewhat, I have had this one about 6 months and it is holding up well. The battery IMHO, is another story, although I have attempted to treat them with some care, I have experienced numerous failures.
If you're getting low number of cycles, look at your charging routine. We are getting roughly 300 to 350 cycles out of them (though we would like more). These packs have no smart chips inside, but do have air channels for when they are hooked up to DeWalt's charger that does have a fan. Sanyo makes quality cells. We use these in a semi-controlled environment in which they are put on the charger ONLY ONCE prior to use. Taking a pack off the charger and putting it back without first using roughly ~10% of the battery charge first will drastically reduce the life of the pack. I wish DeWalt made a slower, gentler charger (3hr or overnight). The rumor is that these packs have a Sanyo variant of a common 2.4 or 2.5 Ahr Sub-C Sanyo cell inside.
I have to agree about the life span being short however this tool proved to be very powerful compaired to most corded tools as this one did out drill the milwaukee in driving long lag screws in dense materials. The batteries are a bit expensive for life of the battery.
Dewalts 24V. That's from my experience of owning 6 of them all bought over a time span to have purchased all of there improved models and they all preformed the same. Batteries only last about 35 -40 charge cycles before they die.
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