• Despite the best efforts of the manufacturers, there are folks out there that try to repair power tools, with [Dean Doherty] being one of them. • Recently he got a Milwaukee M18 cordless planer in for repairs, which started off with just replacing some dodgy bearings, but ended up with diagnosing a faulty controller. • Consequently the total repair costs went up from reasonable to absolutely unreasonable, leading to a rant on why Milwaukee tools are terrible to repair. • Among the symptoms was the deep-discharged battery, which had just a hair over 7 V while unloaded. • Question was what had drained the battery so severely. • What was clear was that the tool was completely seized after inserting a working battery with just a sad high-pitched whine from a stalled motor.
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