What brand power tools (battery) you are happy with ?

[Atanas]

I have been using DEWALT for the past six years. However, I have had to replace my impact and combi drills for the past two years, and the combi started falling again. I also broke one hammer drill. Therefore, I am looking for something more reliable. What is your experience with those tools, and which brand would you recommend?
Thanks

 

[brianmoooore]

Never broken a Bosch blue battery tool, and corded tools have only failed after years of abuse. Gearbox in the case of drills and tool holder for SDS.
Once bought corded drill and SDS from DeWalt. Both were broken beyond repair inside eighteen months.

 

[James]

I have had many years of tough service from dewalt. 10 years is the shortest life, apart from the drill that was stolen