"The ultra high performance of UV and IR Auto-Darkening filters provides to the user?s eyes and face full protection against UV and IR radiation during the entire welding process, even in the clear state. The UV/IR protection level is up to shade 16 at all times."
Also
Pete
Are they branded GP, Panasonic or something known? Or something like "Sunbeam"?
LR44/A76 are Alkaline cells. $5.54 for 10 at Digikey rated 150 mAh (to 0.9 volts) with a 7.5K load (Energizer brand) (at 1.2V terminal voltage you'll get only about 75% of that.
SR44/357 are Silver Oxide. $13.87 for 10 at Digikey. rated 195 mAh (to 1.2 volts) with a 6.5k load (Energizer brand)
If the electronics quits at 1.2V you'd expect around 57% of the life out of the Alkalines for 40% of the cost.
Best regards, Spehro Pefhany
"Bill McKee" wrote in news:ZqadnfGNPoJyIFHWnZ2dnUVZ snipped-for-privacy@earthlink.com:
Thank you, glad you brought that up. ;)
I always pick up four batteries when they are on sale. I would buy more, but I don't like them sitting around that long before use. Then I use a little digital meter to test the old one and the new one. And older weak one will still function down to a certain level, but I like to keep one in there that's "hot".
Steve
Visit my blog at
Note that you can significantly extend the shelf life of a cell or battery by refrigerating it. You probably don't want to truly freeze it, as that could burst the cell, but put them in a ziploc baggie and keep them in the unfrozen food section of the 'fridge.
Enjoy, DoN.
Better living through chemistry!!!
[ but I don't like them sitting around that long before use.just a note: one place I've found very inexpensive (maybe $3 for a pack of 4 or 6) button cells of all sizes is at Princess Auto which I suppose is the Canadian equivalent to HF....certainly carries much of the same re-branded stuff, so you might look there if you are in need. FYI
cheers,
-m in Ottawa
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