ledmitter_nli
Flashlight Enthusiast
- Joined
- Jun 4, 2012
- Messages
- 1,433
I acquired a PAK-LITE several months ago and I remembered testing it using an Energizer Lithium Advanced 9V. Turned the switch on and timed its useful "good" output to about a day and a half. "Good" referring to output down to about 50%.
Recently I acquired 3 more PAK-LITES and a handful of Energizer Lithium Advanced 9V's for backup. Since the PAK-LITE comes with a 9V alkaline included, I sacrificed one and tested, also on high. Two days pass. For some odd reason "good output" maintained longer. :thinking:
Seemed fishy because it flies in the face of conventional wisdom about lithium vs alkaline. So I did a test setting up two PAK-LITES 1 using Alkaline and 1 using Lithium and seated them each into a Fenix diffuser.
March 10 9:30AM to start
(The above shot is a bit overexposed, they aren't this bright.)
And here we are March 11 8:00PM about 35 hours later
Alkaline on the left lithium advanced on the right
Again this is the PAK-LITE on its high setting. We know the PAK-LITE's infamous run times are based off its low setting.
So perhaps the Lithium's aren't so great for higher draw applications? Or maybe I should be using Energizer Lithium "Ultimate"?
Energizers marketing literature:
The Lithium Advanced cells (obviously by its chemistry) feels kind of light compared to the alkalines. Appears there isn't much chemistry inside either. Lots of air and plastic.
There's an "industrial" version of the Energizer 9V Lithium cell on Amazon that has rounded corners, are a bit more expensive and labeled "LITHIUM" (whereas the Energizer Advanced are labeled "PILE LITHIUM"). I wonder if the industrial cells are actually heavier. Would make sense.
Either way I feel a bit cheated given the Advanced lithium 9V's are pricey at close to $7 each.
Recently I acquired 3 more PAK-LITES and a handful of Energizer Lithium Advanced 9V's for backup. Since the PAK-LITE comes with a 9V alkaline included, I sacrificed one and tested, also on high. Two days pass. For some odd reason "good output" maintained longer. :thinking:
Seemed fishy because it flies in the face of conventional wisdom about lithium vs alkaline. So I did a test setting up two PAK-LITES 1 using Alkaline and 1 using Lithium and seated them each into a Fenix diffuser.
March 10 9:30AM to start
(The above shot is a bit overexposed, they aren't this bright.)
And here we are March 11 8:00PM about 35 hours later
Alkaline on the left lithium advanced on the right
Again this is the PAK-LITE on its high setting. We know the PAK-LITE's infamous run times are based off its low setting.
So perhaps the Lithium's aren't so great for higher draw applications? Or maybe I should be using Energizer Lithium "Ultimate"?
Energizers marketing literature:
The Lithium Advanced cells (obviously by its chemistry) feels kind of light compared to the alkalines. Appears there isn't much chemistry inside either. Lots of air and plastic.
There's an "industrial" version of the Energizer 9V Lithium cell on Amazon that has rounded corners, are a bit more expensive and labeled "LITHIUM" (whereas the Energizer Advanced are labeled "PILE LITHIUM"). I wonder if the industrial cells are actually heavier. Would make sense.
Either way I feel a bit cheated given the Advanced lithium 9V's are pricey at close to $7 each.
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