Re: DeWalt 18V LI pricing......

Good jumping off point. Being the geek that I am, I used the graph data to calculate how long it would take the batteries to reach half strength. Of course this is based on this guys usage, for RC's, which is probably more abusive than typical tool usage. In RC's the batteries are run nearly flat out till they poop out. He also ran them down quite low.

Using his data there is .00088Ah lost per cycle. Given his 2.2Ah starting point (again effected by usage) the batteries would hit 1.1Ah in 1,250 cycles. At his usage level they would only have less than .5Ah after 2000 cycles. Again, this is based on his data and assuming the wear out curve remains flat throughout the lifetime of the batteries.

The average tool cycle will vary from tool to tool but usually be less aggressive than an RC user who often runs his batteries flat out the whole time. Therefore DeWalt's numbers look very plausible.

I wonder if their numbers for the "other" manufacturers are as accurate. If so, DeWalt truly has a huge advantage.

Originally posted by

**Sceeter W Wheels**View PostUsing his data there is .00088Ah lost per cycle. Given his 2.2Ah starting point (again effected by usage) the batteries would hit 1.1Ah in 1,250 cycles. At his usage level they would only have less than .5Ah after 2000 cycles. Again, this is based on his data and assuming the wear out curve remains flat throughout the lifetime of the batteries.

The average tool cycle will vary from tool to tool but usually be less aggressive than an RC user who often runs his batteries flat out the whole time. Therefore DeWalt's numbers look very plausible.

I wonder if their numbers for the "other" manufacturers are as accurate. If so, DeWalt truly has a huge advantage.

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