Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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Old February 21st 08, 04:44 PM posted to rec.crafts.metalworking
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Default HF Cordless Drill Batt recharging

As some of you may have found out the hard way, HF charging bases for
the cordless drills do not have charge sensing circuitry or timer. Leave
it plugged in too long, and the battery gets fried.
I use this:
http://www.harborfreight.com/cpi/cta...emnumber=40148
chronically on sale for 3-4 bucks at the stores.
You set up the base/timer,
Plug it in,
Set it,
And...Forget it!
No more overcharged batteries.
JR
Dweller in the cellar


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Old February 23rd 08, 05:56 PM posted to rec.crafts.metalworking
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Default HF Cordless Drill Batt recharging

Yes and note that most household timers offered in the box stores don't
accept three-prong plugs but this one does.

David Merrill


"JR North" wrote in message
news
As some of you may have found out the hard way, HF charging bases for
the cordless drills do not have charge sensing circuitry or timer. Leave
it plugged in too long, and the battery gets fried.
I use this:
http://www.harborfreight.com/cpi/cta...emnumber=40148
chronically on sale for 3-4 bucks at the stores.
You set up the base/timer,
Plug it in,
Set it,
And...Forget it!
No more overcharged batteries.
JR
Dweller in the cellar



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Old February 24th 08, 07:24 PM posted to rec.crafts.metalworking
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Posts: 5,161
Default HF Cordless Drill Batt recharging

On Sun, 24 Feb 2008 10:28:35 -0600, with neither quill nor qualm,
"David R. Birch" quickly quoth:

JR North wrote:
As some of you may have found out the hard way, HF charging bases for
the cordless drills do not have charge sensing circuitry or timer. Leave
it plugged in too long, and the battery gets fried.
I use this:
http://www.harborfreight.com/cpi/cta...emnumber=40148
chronically on sale for 3-4 bucks at the stores.
You set up the base/timer,
Plug it in,
Set it,
And...Forget it!
No more overcharged batteries.
JR
Dweller in the cellar


How long do you set it to charge?


ONe more question: Doesn't it immediately start discharging when the
charger is turned off by the timer?!?

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for him who has the vision to recognize it as such.
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Old February 24th 08, 07:50 PM posted to rec.crafts.metalworking
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Posts: 12,930
Default HF Cordless Drill Batt recharging

Larry Jaques wrote:

One more question: Doesn't it immediately start discharging when the
charger is turned off by the timer?!?



What? A few picoamps of leakage through the diodes? The battery
will self discharge faster.


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Central Florida
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Old February 25th 08, 02:21 AM posted to rec.crafts.metalworking
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Posts: 1,224
Default HF Cordless Drill Batt recharging

On Sat, 23 Feb 2008 17:56:46 GMT, "David Merrill"
wrote:

Yes and note that most household timers offered in the box stores don't
accept three-prong plugs but this one does.

I get around that by splitting a duplex receptacle - feed power to
one receptacle - thru timer to short two wire (polarized) cord
feeding the other receptacle into which the load is plugged. OTOH,
Noma has a nice, digital unit, but I loses it's program if the power
goes off.
Gerry :-)}
London, Canada


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