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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > Solar Charge Controller question

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Twistedlarch

Cottage Grove, OR.

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Posted: 03/21/20 09:16am Link  |  Quote  |  Print  |  Notify Moderator

Here's my set up:
2018 Coachman Viking 17BHS 21'
Dual 6v batteries

Solar panels:
2 Nature Power 100 watt Polycrystalline panels
Tolerance: 3%
Voltage at Pmax(Vmp) 18.0V
Current at Pmax(Imp) 5.65A
Open circuit voltage(Isc) 21.6V
Short circuit voltage(Isc) 5.74A
Max system voltage 600VDC
Protection class Class A


I'm looking for a decent yet budget minded (Under $100) Solar Charge Controller to run my system.


Thank you!
Brian

Lwiddis

Kern County, CA

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Posted: 03/21/20 09:21am Link  |  Quote  |  Print  |  Notify Moderator

Try WindyNation. A number of controllers under $100. I have two...one for floating when in storage and an MPPT.


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, 300 watts solar-parallel & MPPT, Trojan T-125s. TALL pole for flags. Prefer USFS, COE, BLM, NPS, TVA, USF&WS, state & county camps. Bicyclist! 14 year Army vet - 11B40 then 11A - (MOS 1542 & 1560)


jdc1

Rescue, Ca

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Posted: 03/21/20 09:36am Link  |  Quote  |  Print  |  Notify Moderator

https://www.amazon.com/b/ref=DEX_NR_Covid?node=9433645011&pd_rd_w=YQLam&pf_rd_p=8ba1fd08-7860-44d7-b85e-7ca4028710d8&pf_rd_r=E67ZFDXT7ENHYZ181VEW&pd_rd_r=08f4818a-763a-4b36-80a4-a74e508c7f48&pd_rd_wg=FzCAv

Twistedlarch

Cottage Grove, OR.

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Posted: 03/21/20 09:41am Link  |  Quote  |  Print  |  Notify Moderator

jdc1 wrote:

https://www.amazon.com/b/ref=DEX_NR_Covid?node=9433645011&pd_rd_w=YQLam&pf_rd_p=8ba1fd08-7860-44d7-b85e-7ca4028710d8&pf_rd_r=E67ZFDXT7ENHYZ181VEW&pd_rd_r=08f4818a-763a-4b36-80a4-a74e508c7f48&pd_rd_wg=FzCAv



This link takes me to Amazon but doesn't show anything.

Twistedlarch

Cottage Grove, OR.

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Posted: 03/21/20 09:46am Link  |  Quote  |  Print  |  Notify Moderator

This is one I'm looking at, but being a newbie to solar I would like to get a 2nd opinion, or other suggestions before I make a purchase.

Rich Solar 30 amp charge controller


Thanks
Brian

jdc1

Rescue, Ca

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Posted: 03/21/20 09:50am Link  |  Quote  |  Print  |  Notify Moderator

Renogy makes top notch 12v charge controllers. It's just a matter of how fancy you want to get.

dieseltruckdriver

Black Hills of SD

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Posted: 03/21/20 09:59am Link  |  Quote  |  Print  |  Notify Moderator

Watch this video, it will help you decide. I have a Renogy Wanderer and 320 watts on the roof of my 5er right now, and it works flawlessly. I am looking at changing and keeping the Wanderer for a spare.

Solar Charge Controller Buyers Guide.


2000 F-250 7.3 Powerstroke
2018 Arctic Fox 27-5L


Twistedlarch

Cottage Grove, OR.

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Posted: 03/21/20 10:08am Link  |  Quote  |  Print  |  Notify Moderator

I'm confused with what I need, PWT or MPPT?

bob_nestor

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Posted: 03/21/20 10:26am Link  |  Quote  |  Print  |  Notify Moderator

Twistedlarch wrote:

I'm confused with what I need, PWT or MPPT?


Either will work, but a PWM one will be less expensive. The MPPT controllers can generally extract a bit more solar energy, but in a solar setup found in most RVs that advantage will probably be negligible and not worth the extra cost.

Ava

Vancouver Island. BC Canada

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Posted: 03/21/20 10:29am Link  |  Quote  |  Print  |  Notify Moderator

I have a basic pwt controller from amazon that works fine for me. I have two panels with 120 watts total, charging 2 6v batteries with no problems.

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