DC Motors
DC Motors
(OP)
I just had a discussion with a old colleague that has a small fabrication shop that uses a lot self tapping screws and such in his work.
He just picked up about 40 15.4V like new cordless drills with nearly all the batteries bad and no chargers. He has found that he can put some surplus 18V battery stacks in the battery pack for the 15.4V drills.
The usage is intermittent for short periods.
Is this worth the effort or it a waste of time?
How will the drill motors hold up?
He just picked up about 40 15.4V like new cordless drills with nearly all the batteries bad and no chargers. He has found that he can put some surplus 18V battery stacks in the battery pack for the 15.4V drills.
The usage is intermittent for short periods.
Is this worth the effort or it a waste of time?
How will the drill motors hold up?





RE: DC Motors
These tools come in several quality levels. The B&D drills had a lower quality range where the bearings (according to the bearing manufacturer) were specified to have an L10 life around 30 minutes. Then again, there are drills that seem to live forever.
If they have BLDC motors, and the overall appearance and feel is good, then I would say it is an excellent idea.
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: DC Motors
I just called him and he will convert 7 battery packs Monday. He also has the charger angle covered.
The economics are there as both the drills and battery stacks were essentially free other than freight. The 15.4V drill motors were made surplus by higher voltage drills and the original batteries and chargers were very poor. I have no idea how the battery stacks got here.
RE: DC Motors
Your case of no charger adds even more expense...
Keith Cress
kcress - http://www.flaminsystems.com
RE: DC Motors
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: DC Motors
If it's a half-decent brand I'd definitely give it a try.
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If we learn from our mistakes I'm getting a great education!
RE: DC Motors
Bill
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"Why not the best?"
Jimmy Carter
RE: DC Motors
Muthu
www.edison.co.in
RE: DC Motors
And Skogs, I doubt there is s single cordless tool that uses a BLDC.
Keith Cress
kcress - http://www.flaminsystems.com
RE: DC Motors
Now, where did I put that little what's its name? And what way goes this little thing? Guess I need to buy a new cordless. Perhaps a brushless this time?
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: DC Motors
He was clean and reube all the drill motors and did change a few bearings.
Appreciate the help.
RE: DC Motors
Yours
Bill
Bill
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"Why not the best?"
Jimmy Carter