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NOOB CR2 Battery Question/New Style Red

tung

tung

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My second N.S. Focusable Red laser from O-Like has gone from burning thru a jewel case in like half a second to taking 10 or more seconds (if at all).No major loss in brightness though.So,I carefully cleaned the lens...no change so I decided to check my CR2s.One of them showed 3.30V and 9.1 mA while the other showed 2.80V and 8.8 mA.I then fully charge them one at a time to capacity and after just a few minutes of use I get the same (roughly) readings on my meter.What would cause my batteries to discharge at such different rates?Is this a battery problem (as suspected) or a driver problem.Any help on this matter would be much obliged as I am holding of on ordering new CR2s.
 





lasersbee

lasersbee

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Start by changing the obvious.... the batteries....
How did you measure 9.1mA and 8.8mA...:thinking:
Something doesn't seem right with those currents
on a burning Laser...


Jerry
 
tung

tung

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lasersbee said:
Start by changing the obvious.... the batteries....
How did you measure 9.1mA and 8.8mA...:thinking:
Something doesn't seem right with those currents
on a burning Laser...


Jerry
Click to expand...

Those measurements were taken using the "battery testing" mode of my meter where a fresh 1.5v battery would measure 4.0 mA or a fresh 9v would measure 25 mA.
 
rhd

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tung said:
Those measurements were taken using the "battery testing" mode of my meter where a fresh 1.5v battery would measure 4.0 mA or a fresh 9v would measure 25 mA.
Click to expand...

That makes even less sense... ?

A 1.5V battery should provide more current than a 9V, and by far.

Plus, in either case, the current should be way higher. For example, 4.0 mA for a 1.5V battery is nowhere near what it should be, as I would have expected upwards of 2,000 mA from a 1.5V AA.
 
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tung

tung

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rhd said:
That makes even less sense... ?

A 1.5V battery should provide more current than a 9V, and by far.

Plus, in either case, the current should be way higher. For example, 4.0 mA for a 1.5V battery is nowhere near what it should be, as I would have expected upwards of 2,000 mA from a 1.5V AA.
Click to expand...

Alright,here is a link to a photo of the multi-meter I have.At the upper-right hand side is the mode select position which states 1.5v(4.0mA) 9v(25mA) http://i190.photobucket.com/albums/z109/rgcurro_2007/DIGITAL/MULTIMETER-2.jpg?t=1280284449
 
Lotus_Darkrose

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If you're measuring current, the black plug goes in the top hole (10ADC) and you need to turn the knob to 10A.

Just metered a semi-new meijer brand AA and got 1.8A.
 
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tung

tung

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Lotus_Darkrose said:
If you're measuring current, the black plug goes in the top hole (10ADC) and you need to turn the knob to 10A.

Just metered a semi-new meijer brand AA and got 1.8A.
Click to expand...

Thanks for the info,which I was certainly not aware,but I was just stating what the battery testing mode of my meter reads for two rechargable CR2s tested separately without a load.
 
snoutke

snoutke

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Lotus_Darkrose said:
If you're measuring current, the black plug goes in the top hole (10ADC) and you need to turn the knob to 10A.

Just metered a semi-new meijer brand AA and got 1.8A.
Click to expand...

Are you sure the black plug goes in the top hole (10ADC) and not the red plug?
 
chipdouglas

chipdouglas

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the black lead stays put. the red gets moved one up for testing in dc amp mode.

michael.
 
Lotus_Darkrose

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Hahaha sorry about that. I just realized what I said and got out my multimeter again. Yes you move the red plug. Wow, talk about a double brain fart.


Aaaaand....1,000th post, yay!
 
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