rvupgradestore.com Composet Products Fridge Defend
RV Life Magazine RV Park Reviews RV Trip Wizard

Author Topic: solar to charge one battery...what n where to buy  (Read 849 times)

tanglemoose

  • ---
  • Posts: 316
solar to charge one battery...what n where to buy
« on: June 29, 2018, 02:33:27 PM »
We have 150 watts on roof of our rv...  love it. Have friend who does a little camping.. only one battery, wants to charge battery for lights and run fridge ... nothing else. What small setup would you recommend... and where to buy...  do any box stores carry.. would like to just go get.. live in Billings, mt. Don't want to go to the RV place...

Ideas... suggestions..
 Thanks
Donna and Mark
and our Golden Lexie
New 2017 TT Keystone Cougar  Same model... but NEW Features!
2015 Keystone Cougar 1/2 Ton Series, 21rbswe, 26'
2013 Toyota Tundra
Living in Cold Montana Country.....

Frank B

  • ---
  • Posts: 1081
Re: solar to charge one battery...what n where to buy
« Reply #1 on: June 29, 2018, 03:48:27 PM »
Your best bet may be to just phone around if you want to get something from the box stores.


If you don't mind waiting a week, Amazon is likely your best bet. Look for some of the Renogy kits. They seem to have a good name, and they come in varying sizes. For a single battery, a kit with a 100 watt panel may be all that is needed.  With that said, however, an energy audit is the only way to know for sure. You have to figure out how much power the fridge electronics and lights consume in a day. The solar system has to match or exceed that.
Linux:  Free, open, elegant.
06 GMC 3500 Duramax crew/long pulling 2010 Arctic Fox 30U with 1700 lb Reese Titan Class 5.
1.2 kw solar

AStravelers

  • ---
  • Posts: 1093
  • Part time travelers, 4-8 months each year.
Re: solar to charge one battery...what n where to buy
« Reply #2 on: July 01, 2018, 03:53:15 PM »
The elect/propane fridge only pulls about 0.2-0.3 amp when the propane burner is not lit. About 0.4-0.5 amp when cooling. So don't worry about the fridge. 

Go to Amazon and order a 100-120watt solar panel.  Buy some #10 stranded wire to run from the solar panel.  After the sun comes up prop the solar panel up facing the sun and attach the wires to the battery for a few hours.

Consider swapping out your 12V light bulbs for LED bulbs.  The incandescent bulbs pull about 1.2-1.5 amp per bulb. Many light fixtures have 2 bulbs.  12V florescent light fixtures pull about 3 amps.  LED bulbs pull about 0.2-0.3amp per bulb. 
Al & Sharon
2006 Winnebago Journey 36G
2009 Chevy Colorado 4X4

http://downtheroadaroundthebend.blogspot.com/

Gwbeech

  • Guest
Re: solar to charge one battery...what n where to buy
« Reply #3 on: July 01, 2018, 07:20:18 PM »
Go to harbor freight.com they have a 100 watt solar panel kit with
the hookups to charge a single battery for 199.99.

DanteMc

  • ---
  • Posts: 15
Re: solar to charge one battery...what n where to buy
« Reply #4 on: July 01, 2018, 11:56:53 PM »
Don't go too cheap on LED bulbs.  I bought a bunch last year and the individual LED's on the bulbs started burning up and off-gassing a super heavy smell that was giving me a headache after a few minutes of exposure.  I bought replacement fixtures.  Going to try and install them this weekend.
---
1995 Travelmaster Montego 280XS

Gary RV_Wizard

  • Forum Staff
  • ---
  • *
  • Posts: 65121
  • RVer Emeritus
Re: solar to charge one battery...what n where to buy
« Reply #5 on: July 02, 2018, 11:03:36 AM »
Hard to imagine what in an Led could be "off-gassing"  - there is no gas involved in an Led light.  Guess they were overheating and melting whatever backer they were mounted on?  An Led bulb is a miniature circuit board and some of the el cheapo ones have limited voltage regulation that does not cope well with the fairly broad range of 12v power in an RV, where "12v" is often anywhere from 11.0v-14.4v.
Gary
--------------
Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL

HappyWanderer

  • ---
  • Posts: 2100
Re: solar to charge one battery...what n where to buy
« Reply #6 on: July 02, 2018, 02:20:51 PM »
Go to harbor freight.com they have a 100 watt solar panel kit with
the hookups to charge a single battery for 199.99.

No, don't go to Harbor Freight. That 100 watt kit is four heavy 25 watt panels that you'll need to carry around.

For the same price, or less, you can get a single 100 watt panel and controller from Amazon.
WARNING: This post may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive harm.

DanKearney

  • ---
  • Posts: 66
  • 2000 Gulf Steam Cavalier 19' Class C
Re: solar to charge one battery...what n where to buy
« Reply #7 on: July 02, 2018, 02:34:14 PM »
I am very happy with this unit I purchased through Amazon.com.  Fold's suticase-style, 120watts, two panels.  Only cost me $165.00.

https://www.amazon.com/gp/product/B01M4NH9ES/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1

Cheers,

Dan K.
« Last Edit: July 02, 2018, 02:36:18 PM by DanKearney »
Black Hawk, Colorado

Oldgator73

  • ---
  • Posts: 935
Re: solar to charge one battery...what n where to buy
« Reply #8 on: July 14, 2018, 10:00:13 PM »
I have a Harbor Freight 45 watt system. It kept my battery charged this past week while camping at Shenandoah SP. Fridge ran off gas and only used LEDís, water pump and small DC fan. The problem with this solar system is itís heavy and bulky. Will be looking at a 120-200 watt suitcase model for future trips.
Retired Air Force
2016 Winnie Drop
2016 Nissan Frontier
1952 Wife

rlpeeler

  • ---
  • Posts: 9
Re: solar to charge one battery...what n where to buy
« Reply #9 on: July 21, 2018, 01:31:35 PM »
I am very happy with this unit I purchased through Amazon.com.  Fold's suticase-style, 120watts, two panels.  Only cost me $165.00.

https://www.amazon.com/gp/product/B01M4NH9ES/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1

Cheers,

Dan K.

WOW, only $165?  You got a great deal  That same item is now $235.
 
Randy L. Peeler
Kentucky Colonel
US Navy Submarine Veteran
Crestview, FL (mailbox only)
23' Travel Trailer; GMC Envoy
Yamaha V-Star 1100 Custom