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ContinuousWave: Small Boat Electrical
Blue Seas 7650
|Author||Topic: Blue Seas 7650|
posted 02-16-2009 04:55 PM ET (US)
Just installed the Blue Seas 7650 combination battery switch and ACR on our 170 Montauk. Very nicely made units. After the install I measured the voltage of both batteries before starting the engine. Voltages were 12.70 volts for the cranking and 12.43 volts on the trolling motor battery. To verify the ACR was working I fastened a digital meter to the battery posts on the second battery. Less than a minute after starting the engine the meter smoothly started to climb from 12.43 volts to 13.55 volts where it stayed until I shut down the engine a few minutes later. Very nice package and West Marine matched the internet price of less than a hundred dollars. The ability to combine both batteries in an emergency,to start the engine,is nice peace of mind for a very resonable price. Only draw back is the ability to see if the remote LED is on or off in sunlight. I called Blue Seas and operating current for the remote led is only 10-milliampere. I don't know if that's enough to drive a larger LED or not?
posted 02-16-2009 10:19 PM ET (US)
Try using a blue LED for the indicator. They seem to be extremely bright. Ten milliamperes is not a lot of current for an LED.
posted 03-01-2009 01:25 PM ET (US)
Worked better than anticipated. Thanks Jim
posted 03-01-2009 04:42 PM ET (US)
ASIDE on the brilliance of the blue LED:
Several years ago I recommended purchase of five sets of (rather expensive TANNOY System 800 time-aligned concentric driver) loudspeakers for use as precision audio monitors in critical mixing situations (with the idea that our facility would standardize on a particular audio monitoring environment to achieve more consistency in the stereo mix-downs, particularly with respect to stereo image). (Most) all the editors liked the loudspeakers, however they universally complained that the power LED on these self-powered loudspeakers was much too bright. It was a blue LED. Within a few days, I noticed that all the blue LED's had tape over them to block the light output. It was blinding, particularly in the darkly illuminated edit control rooms.
posted 03-04-2009 05:49 PM ET (US)
Another "aside" in LED technology. We are now selling LED arrays capable of 2000 lumen output which is the equivalent of a 75W incandescent bulb. Someone needs to put these light engines in a package suitable for the marine environment. They would make great underwater lamps.
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