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- Nov 14, 2009
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I got my first PT-54 yesterday, and I am having some problems. The spec sheet says that you should be able to drive it at up to 8.1 amps at up to 3.5 volts.
I ordered some LiFePo4 batteries, but while I waited for them to come I decided to hook up the LED to 2 D batteries in series for 3 volts, right in the middle of the voltage range (2 - 3.5 volts). When I hook the LED in series with me ammeter, it only reads in at 2.31 amps max, normally around 1.9 amps.
So I figured that D batteries couldn't handle that kind of load, so I shorted out the 2 batteries with my voltmeter in series and it read in at 15.3 amps.
So now I know that the D's can supply that kind of current, what am I doing wrong?
I ordered some LiFePo4 batteries, but while I waited for them to come I decided to hook up the LED to 2 D batteries in series for 3 volts, right in the middle of the voltage range (2 - 3.5 volts). When I hook the LED in series with me ammeter, it only reads in at 2.31 amps max, normally around 1.9 amps.
So I figured that D batteries couldn't handle that kind of load, so I shorted out the 2 batteries with my voltmeter in series and it read in at 15.3 amps.
So now I know that the D's can supply that kind of current, what am I doing wrong?