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 > Solar suitcase problem

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Katdaddy

Petal, MS USA

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Joined: 08/25/2003

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Posted: 09/29/20 03:04pm Link  |  Quote  |  Print  |  Notify Moderator

I bought a 130w solar suitcase a couple months back. I comes with a cheap CMTD A2410 controller. I've hooked it up only three times. The first two times all was well. Today I hooked it up to my boat batteries and it has gone haywire. I was going to check the on and off parameters to make sure they were where I wanted. The readings for the parameters are way to high, reading 29 - 30 volts. Cannot set below 29 and the display still has a readout after I disconnect the batteries. I'm assuming this controller is toast. My problem is that we are leaving on trip that I bought this thing for in less than two weeks.
Can I reset this thing or do I need to buy a new controller? If I need to buy recommendations please.
As always, thanks for your help.


Little by little, one travels far - J.R.R. Tolkien
There ain't no surer way to find out whether you like people or hate them than to travel with them. - Mark Twain

doughere

Mooresville NC

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Posted: 09/29/20 03:18pm Link  |  Quote  |  Print  |  Notify Moderator

I believe that controller is 12/24 volt. Did you hook up the battery side first? Most dual voltagr controllers determine their operation from the battery hookup. Values you mentioned sound like it thinks its a 24 volt system

BFL13

Victoria, BC

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Posted: 09/29/20 03:25pm Link  |  Quote  |  Print  |  Notify Moderator

Katdaddy wrote:

I bought a 130w solar suitcase a couple months back. I comes with a cheap CMTD A2410 controller. I've hooked it up only three times. The first two times all was well. Today I hooked it up to my boat batteries and it has gone haywire. I was going to check the on and off parameters to make sure they were where I wanted. The readings for the parameters are way to high, reading 29 - 30 volts. Cannot set below 29 and the display still has a readout after I disconnect the batteries. I'm assuming this controller is toast. My problem is that we are leaving on trip that I bought this thing for in less than two weeks.
Can I reset this thing or do I need to buy a new controller? If I need to buy recommendations please.
As always, thanks for your help.


First question is if the boat is 24v, did you let the controller see the 24v before you connected the controller to the array?

Could be other issues, but start there for now.

https://www.dropbox.com/s/3utx0h3wjnztwm........TD-10A-Solar-Charger-DUAL-USB-6.pdf?dl=0


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pianotuna

Regina, SK, Canada

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Posted: 09/29/20 04:02pm Link  |  Quote  |  Print  |  Notify Moderator

most solar controllers do not "like" input from solar without first connecting to the battery bank.

give the controller a "rest". Then short out the input, follow that by shorting out the output. Next connect the controller to the battery bank. Then connect to the solar panels.

I hope the controller was not fried.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Katdaddy

Petal, MS USA

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Posted: 09/29/20 04:16pm Link  |  Quote  |  Print  |  Notify Moderator

I just ran back outside to give it a go and that did it. Hooked the batteries up first and everything is back to normal. My boat system is 12 volt, so I don't know why it read 24 volt.
Again thanks so much for your help. The knowledge on this forum is just amazing.

* This post was edited 09/29/20 04:33pm by Katdaddy *

Lwiddis

Camping near Pearsonville, CA

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Posted: 09/29/20 04:40pm Link  |  Quote  |  Print  |  Notify Moderator

Buy a good controller. Install it in the RV. Connect your portable solar panels to the controller. Or you can wait until the cheapo fails.


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)


Katdaddy

Petal, MS USA

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Posted: 09/29/20 07:23pm Link  |  Quote  |  Print  |  Notify Moderator

Lwiddis wrote:

Buy a good controller. Install it in the RV. Connect your portable solar panels to the controller. Or you can wait until the cheapo fails.


Copy that. Recommendations on a good controller, please.

Lwiddis

Camping near Pearsonville, CA

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Posted: 09/29/20 07:41pm Link  |  Quote  |  Print  |  Notify Moderator

I’m a WindyNation fan. I have two of their controllers. A thirty amp MPPT and a weatherproof ten amp that is used with a 30 watt panel ...placed on top of my RV cover when in storage.

https://www.windynation.com/charge-controllers

Katdaddy

Petal, MS USA

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Posted: 09/29/20 09:18pm Link  |  Quote  |  Print  |  Notify Moderator

Lwiddis wrote:

I’m a WindyNation fan. I have two of their controllers. A thirty amp MPPT and a weatherproof ten amp that is used with a 30 watt panel ...placed on top of my RV cover when in storage.

https://www.windynation.com/charge-controllers

Thanks for the recommendation.

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