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Paul Cowley
Works at NCR Corporation
Lives in Ames, IA
21 followers|60,907 views
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Paul Cowley

commented on a video on YouTube.
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We need footage of the fix... I'd love to watch along as you 'fixed' the AK!

Paul Cowley

commented on a video on YouTube.
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AA "Lithium" batteries (Li-FeS2) like the ones you used and AA "Alkaline" batteries have the same nominal voltage (1.5V) so you shouldn't see a difference in brightness between fully charged batteries of either type.  Where this type of lithium battery rules, though, is in the total capacity.  At a constant 500 mA drain, alkaline batteries will hold 1800-2600 mAh versus lithium batteries with somewhere between 2700-3400 mAh.  In high-discharge applications, you can see up to 2.5x longer life with the lithium cells versus alkaline.  They also store better due to much lower self-discharge rates (think storage in the 10-20 year range with little to no effect on capacity).

Also, don't confuse these "Lithium" cells with the CR123A lithium batteries often used in high-brightness flashlights (think "Surefire") and such.  The CR123A uses a Li-MnO2 chemistry, producing a terminal voltage of 3V (instead of 1.5V as with the Li-FeS2), and work better in low-drain applications.  They don't like high current drain applications, but can deliver brief "spikes" of high current effectively.  The CR123A will also self-discharge at high temperatures so are more critical of storage.
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Paul Cowley

commented on a video on YouTube.
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Fantastic giveaway... congratulations to the winners!
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Have him in circles
21 people
Scott Van Willigen's profile photo
TJ Vance's profile photo
Melissa Larsen's profile photo
Rob Wood's profile photo
Brooklynn Deifel's profile photo
Scott Prader's profile photo
Bryan Jones's profile photo
TJ Vance's profile photo
Adafruit Industries's profile photo
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Ames, IA
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  • NCR Corporation
    Field Service Manager, present
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You get what you pay for. Clean room, shower had just two settings, it seemed - scalding hot, or ice-cold. The air conditioner was amongst the loudest I've heard, but I was able to eventually get to sleep in spite of it.
Public - 9 months ago
reviewed 9 months ago
20 minute wait at the parts counter just to pick up a part that I had already ordered and paid for. They're either grossly understaffed, or just don't care, but neither is good for the customer.
Public - 9 months ago
reviewed 9 months ago
2 reviews
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