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Home > Archive > Alternative Power sources > October 2005 > Battery Charger
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| I am looking to buy a ready made solar battery charger. I have an
opportunity to buy a 20 watt flexible panel, sans controller, that puts out
1.2 amps for $249 (US). Sam's Club carries a 45 watt unit (3 amps),on-line,
that sells for $392 and change (US). Ideally I would like something in the
6-10 amp range but haven't seen one. Anyone have links to such a charger?
Is the one at Sam's Club a good deal? What about the flexible panel, is
that a good price?
Thanks for any help.
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| Steve Spence 2005-10-14, 10:21 am |
| Newby wrote:
> I am looking to buy a ready made solar battery charger. I have an
> opportunity to buy a 20 watt flexible panel, sans controller, that puts out
> 1.2 amps for $249 (US). Sam's Club carries a 45 watt unit (3 amps),on-line,
> that sells for $392 and change (US). Ideally I would like something in the
> 6-10 amp range but haven't seen one. Anyone have links to such a charger?
> Is the one at Sam's Club a good deal? What about the flexible panel, is
> that a good price?
>
> Thanks for any help.
you want a 160 watt panel with a charge controller.
http://www.backwoodssolar.com
--
Steve Spence
Dir., Green Trust, http://www.green-trust.org
Contributing Editor, http://www.off-grid.net
http://www.rebelwolf.com/essn.html
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| Derek Broughton 2005-10-14, 10:21 am |
| Newby wrote:
> I am looking to buy a ready made solar battery charger. I have an
> opportunity to buy a 20 watt flexible panel, sans controller, that puts
> out 1.2 amps for $249 (US). Sam's Club carries a 45 watt unit (3
> amps),on-line,
> that sells for $392 and change (US). Ideally I would like something in
> the
> 6-10 amp range but haven't seen one. Anyone have links to such a charger?
> Is the one at Sam's Club a good deal? What about the flexible panel, is
> that a good price?
>
For 20W, it might be OK, but in the 100W range you should expect to pay
around $400-$450 for a rigid panel, and less than $100 for a decent charge
controller.
--
derek
| |
| dold@XReXXBatte.usenet.us.com 2005-10-14, 12:21 pm |
| In alt.solar.photovoltaic Derek Broughton <news@pointerstop.ca> wrote:
[color=darkred]
You definitely want a charge controller. Batteries didn't last very long
before I added a $35 ICP controller. I see it online at Amazon. Search
icp "7 amp charge controller"
--
---
Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8,-122.5
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| JoeSixPack 2005-10-16, 5:21 pm |
|
"Newby" <nobody@nowhere.net> wrote in message
news:1129291106_2431@spool6-east.superfeed.net...
>I am looking to buy a ready made solar battery charger. I have an
> opportunity to buy a 20 watt flexible panel, sans controller, that puts
> out
> 1.2 amps for $249 (US). Sam's Club carries a 45 watt unit (3
> amps),on-line,
> that sells for $392 and change (US). Ideally I would like something in
> the
> 6-10 amp range but haven't seen one. Anyone have links to such a charger?
> Is the one at Sam's Club a good deal? What about the flexible panel, is
> that a good price?
>
You could search the electronics hobbyist sites for plans and build yourself
one for a few bucks, but I'd rather buy something off the shelf for a few
bucks more.
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| RF Dude 2005-10-16, 7:21 pm |
| GOOGLE: "solar controller" and you will get a good selection.
If you have a 100 AHr battery or larger, your charge rate is C/100 for the
solar panel you indicate. That is a very safe charge level... considered
trickle charge really. Depending on your load, you might not even need a
charge controller.
| |
| JoeSixPack 2005-10-16, 8:21 pm |
|
"RF Dude" <post@thisnewsgroup.com> wrote in message
news:t0A4f.4920$ns3.137241@news20.bellglobal.com...
> GOOGLE: "solar controller" and you will get a good selection.
>
> If you have a 100 AHr battery or larger, your charge rate is C/100 for the
> solar panel you indicate. That is a very safe charge level... considered
> trickle charge really. Depending on your load, you might not even need a
> charge controller.
>
>
Not sufficient for daily use, unless your battery depletion by daily usage
is much lower than that. Depletion rate should be factored into your
equation.
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