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Home > Archive > Alternative Power sources > November 2005 > AGMs plus charger or charge controller?
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AGMs plus charger or charge controller?
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| William P.N. Smith 2005-11-19, 4:21 pm |
| I've got a weather station, VHF radio repeater, and fixed-cell phone
interface that I need to move from a weather station tower to a house.
I've currently got a couple of 20W panels (one direct to the battery,
one with a charge controller) feeding a pair of golf cart batteries
with HydroCaps, and except for the quality of the available batteries,
I'm pretty happy with the results.
Now that the batteries are going to be inside, in a closet, I'd like
to convert over to around 100 amp-hours of 12V AGM battery, with
either a 120V maintenance charger or 40-ish watts of solar panel with
a charge controller.
Does anyone have any reccomendations for batteries, 120V chargers, or
charge controllers?
Thanks!
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| Solar Flare 2005-11-19, 7:21 pm |
| Sounds like a troll to me.
"William P.N. Smith" <news05@compusmiths.com> wrote in
message
news:n8vun11gvkleut5a0k31pkagv71fjflepl@4ax.com...
> I've got a weather station, VHF radio repeater, and
fixed-cell phone
> interface that I need to move from a weather station
tower to a house.
>
> I've currently got a couple of 20W panels (one direct
to the battery,
> one with a charge controller) feeding a pair of golf
cart batteries
> with HydroCaps, and except for the quality of the
available batteries,
> I'm pretty happy with the results.
>
> Now that the batteries are going to be inside, in a
closet, I'd like
> to convert over to around 100 amp-hours of 12V AGM
battery, with
> either a 120V maintenance charger or 40-ish watts of
solar panel with
> a charge controller.
>
> Does anyone have any reccomendations for batteries,
120V chargers, or
> charge controllers?
>
> Thanks!
| |
| George Ghio 2005-11-19, 7:21 pm |
| ROT - 1 panel for every 100Ah of battery capacity(The panel being ~60
Watts).
I like the Plasmatronics PL series Regulators, Landline has one he feels
is better. Perhaps he can help.
Almost any good quality gells will work. Keep in mind that the reg must
be set for gell cells. Improper charging at higher than recomended
voltage will cause a seriously shortened life for gells.
Buy as local as you can and ask for spec sheets and written warranty on
batteries as shipping can cost.
William P.N. Smith wrote:
> I've got a weather station, VHF radio repeater, and fixed-cell phone
> interface that I need to move from a weather station tower to a house.
>
> I've currently got a couple of 20W panels (one direct to the battery,
> one with a charge controller) feeding a pair of golf cart batteries
> with HydroCaps, and except for the quality of the available batteries,
> I'm pretty happy with the results.
>
> Now that the batteries are going to be inside, in a closet, I'd like
> to convert over to around 100 amp-hours of 12V AGM battery, with
> either a 120V maintenance charger or 40-ish watts of solar panel with
> a charge controller.
>
> Does anyone have any reccomendations for batteries, 120V chargers, or
> charge controllers?
>
> Thanks!
| |
| Vaughn 2005-11-19, 8:21 pm |
|
"William P.N. Smith" <news05@compusmiths.com> wrote in message
news:n8vun11gvkleut5a0k31pkagv71fjflepl@4ax.com...
>
> Does anyone have any reccomendations for batteries, 120V chargers, or
> charge controllers?
If you are going to go with 120V charging, take a look at these people's
chargers: http://batterytender.com/
I use several of them and never have had an issue. For AGMs, talk to your local
UPS guy.
Vaughn
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| William P.N. Smith 2005-11-20, 12:21 am |
| "Vaughn" <vaughnsimonHATESSPAM@att.fake.net> wrote:
> If you are going to go with 120V charging, take a look at these people's
>chargers: http://batterytender.com/
I was hoping for something with at least temperature compensation...
>I use several of them and never have had an issue. For AGMs, talk to your local
>UPS guy.
There is no local UPS guy, I was hoping the NG had some
reccomendations.
Thanks!
| |
| Solar Flare 2005-11-20, 12:21 pm |
| Looks like a troll post to me.
"William P.N. Smith" <news05@compusmiths.com> wrote in
message
news:vjpvn1tv53t9ahjphggrk7kk1b5lgrmqqc@4ax.com...
> "Vaughn" <vaughnsimonHATESSPAM@att.fake.net> wrote:
a look at these people's[color=darkred]
>
> I was hoping for something with at least temperature
compensation...
>
For AGMs, talk to your local[color=darkred]
>
> There is no local UPS guy, I was hoping the NG had
some
> reccomendations.
>
> Thanks!
| |
| Vaughn 2005-11-20, 12:21 pm |
|
"William P.N. Smith" <news05@compusmiths.com> wrote in message
news:vjpvn1tv53t9ahjphggrk7kk1b5lgrmqqc@4ax.com...
> "Vaughn" <vaughnsimonHATESSPAM@att.fake.net> wrote:
>
> I was hoping for something with at least temperature compensation...
It is "in there", but there is no external sensor. I guess they assume that
the charger and battery will be in the same general area. From their FAQ:
"The temperature compensation ratio employed by the Deltran Battery Tender Plus
battery chargers is approximately minus 3.67 millivolts per battery cell per
degree Centigrade of temperature rise above 25 °C. Stated another way, the
output voltage of the Deltran Battery Tender Plus battery charger will drop
0.022 volts, or 22 millivolts, for every degree Centigrade temperature rise,
when it is connected to a 12-volt battery.
In the event that the temperature would rise enough so that the Deltran Battery
Tender Plus battery charger voltage output drops below the what would be
considered a normal operating voltage for a 12 volt battery, then the Deltran
Battery Tender Plus battery charger automatically disconnects itself from the
battery via an internal solid state mechanism, affording an extra measure of
safety in a very high temperature environment. "
Vaughn
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| Daniel Armstrong 2005-11-25, 9:21 pm |
| > Almost any good quality gells will work. Keep in mind that the reg must be
> set for gell cells. Improper charging at higher than recomended voltage
> will cause a seriously shortened life for gells.
>
> Buy as local as you can and ask for spec sheets and written warranty on
> batteries as shipping can cost.
Ummmmm.... Gel cell batteries are NOT the same thing as AGM batteries.
Gel cells have gelled electrolyte hence the name.
AGM are absorbed glass mat which have spun fiberglass sponges that are
~95% saturated with standard liguid electrolyte. This includes the Exide
Select Orbital (preferred) and Johnson Controls Optima (OK) spiral wound
plate batteries.
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