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edleg
Joined: 11 Jun 2009
Posts: 14
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 Posted: Sun Jul 11, 2010 3:38 pm Post subject: Another battery maintainer/charger question |
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This subject is off topic of building/running airplanes, but it is still an interesting (to me, anyways) question/subject. One of my hobbies that gets in the way of aircraft building is my long time ham radio interests.
I recently obtained a new RV/Marine deep cycle battery to provide emergency 12vdc power for my vhf/uhf station and hf station on low power. I bought a nice battery box to put the thing in (a rather heavy battery -- "105 Ahr"). Mounted a small dc-to-ac inverter on the lid along with some 12vdc outlets and also a new Schumacher SE-1-12s (1.5 amp) maintainer/charger.
Everything works fairly well except for two troubling things:
1. the maintainer/charger is very loud, even in the maintainer mode -- actually louder than my other two regular 6/2 amp and 10/2 amp battery chargers.
2. the "float" voltage that is maintained is at 12.96 vdc as measured by two different digital (fluke brand) volt meters. Seems a little bit low when reading the other posts here.
So... Bob and the other electron experts: is there a relatively (physically) small maintainer/charger that doesn't always sound like a loud battery charger (oxymoron???) when in the maintainer mode, and is the float voltage high enough?
Thanks,
-Ed-
NX6ED
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n8zg(at)att.net
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| Posted: Sun Jul 11, 2010 4:19 pm Post subject: Another battery maintainer/charger question |
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Ed -
My little Schumacher 1562 1.5-amp charger/maintainer is silent - at least,
if it makes any noise, I've never noticed it, even in the wee hours with the
house & shop quiet.
Neal
N8ZG
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skywagon
Joined: 11 Feb 2006
Posts: 184
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| Posted: Mon Jul 12, 2010 8:34 am Post subject: Another battery maintainer/charger question |
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Ed,
The little maintainer should be dead silent. I suspect the step down
transformer inside the unit is bad. I would try to return it to the store
for an exchange or send it back to the manuf. They should be good about
replacing it.
The float voltage should be approx. 13.1 to 13.4 volts. There are probably
internal adjustments "if" you can pop the case. However, if the transformer
is faulty/vibrates at 60/120 Hz. then it needs to be swapped with a good
one.
David
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