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NOOB CR2 Battery Question/New Style Red

tung

tung

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Oct 31, 2010
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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.
 





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

michael.
 
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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