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08-24-2015, 09:25 PM
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#1
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Junior Member
Join Date: Jul 2015
Location: Scottsville
Posts: 5
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Solar battery charger question
Does anyone use a solar charger to keep their battery charged in storage? We just purchased a 2008 jayco jayfeather 197 and had to replace the battery because it had been in storage. I was thinking of using this charger from harbor freight but wanted to see what others thought. This is the charger,
http://http://www.harborfreight.com/...ger-68692.html
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08-24-2015, 10:30 PM
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#2
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Senior Member
Join Date: Apr 2014
Location: Boise
Posts: 201
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My thoughts,... (but didn't check link)
If your Trailer has the stock batteries and all you are needing is something to keep the batteries charged between uses then a small solar battery maintainer is sufficient. If you looking for something to charge the batteries during the day while camping that is something else, especially if you have an expanded battery bank.
__________________
TV: 2013 F350, Lariat, 4x4, CC, LB, 6.7L Powerstroke
FW: 2013 Jayco Eagle Premier 361 REQS
Additions: Onan 5500W LP Generator, Surge Guard TS,
.......Roof Satellite Dish, Vent Covers, Bedroom Vent Fan,
.......Rear Reciever, 12V DC Outlets (6), 320W Solar & Controller,
.......4 Lifeline AGM Batteries (600 Ah @ 12V),
.......Stereo Upgraded, Interior Speaker Upgrade, Amp
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08-25-2015, 11:06 AM
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#3
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Member
Join Date: Sep 2013
Location: Newmarket, ON Canada
Posts: 74
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Yes - this year I bought a Coleman solar panel and controller from Canadian Tire:
Coleman 40W Folding Solar Panel | Canadian Tire
It was on sale, and works great. I just put the panel on the roof of the trailer when I store it and the battery is always at 100%
Before it would die in a couple of weeks.
Well worth it and would be useful for dry camping too.
__________________
Doug
Newmarket,ON Canada
-2013 F150 4x2 SuperCab 3.5EB
-2011 Jay Flight 22FB (SOLD)
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08-25-2015, 12:18 PM
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#4
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Site Team
Join Date: Nov 2012
Location: Clearwater, FL area
Posts: 5,196
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Don't waste your money on a 1.5 watt solar charger. If you store the TT in a cold winter area, 1.5 watts will not be enough as the sun is not out for that long each day, cloudy days...... Understand that this can only be used on a FULLY charged battery.
Don
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08-25-2015, 12:27 PM
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#5
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Senior Member
Join Date: Aug 2014
Location: Wheatfield
Posts: 1,091
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This year we installed a Renogy 100 watt solar system - it was the particular model offered as an RV charger.
I must say it was one of the best investments I ever made. We boondock 100% and had to run the generator ~4 hours each day. This year the genny has not been run once, not even on cold days when the furnace ran all night.
The battery is fully charged by about 10 AM. On cloudy days with no sun at all, it takes till about noon.
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08-25-2015, 04:23 PM
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#6
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Senior Member
Join Date: May 2014
Location: Eatonton
Posts: 305
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We purchased an inexpensive solar system from Harbor Freight and it works great, The 45watt kit runs about $150.00.
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08-25-2015, 08:46 PM
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#7
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Junior Member
Join Date: Jul 2015
Location: Scottsville
Posts: 5
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Thanks for all of the advice. I do live in a cold climate but the cost for the charger is minimal so I think I will try it. I will be using it to maintain a fully charged battery. I will post how it turns out.
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08-25-2015, 10:17 PM
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#8
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Senior Member
Join Date: Jan 2013
Location: Twin Falls
Posts: 930
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I did the same thing, I think mine is 15 watts, works great, I mounted it on top of my propane hard cover, wired directly to the batteries, keeps it at 100% always while in storage, but one thing I do each time I take it back to the storage is I remove the fuse from the batteries leading to the trailer, that way I'm not fighting the parasitic battery drain, really simple and costs absolutely nothing
__________________
2011 Dodge Ram 2500 Cummins
2012 Starcraft Autumn Ridge 297 BHS
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08-26-2015, 08:49 AM
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#9
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Senior Member
Join Date: Aug 2014
Location: Wheatfield
Posts: 1,091
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Quote:
Originally Posted by Jtoocheap
Thanks for all of the advice. I do live in a cold climate but the cost for the charger is minimal so I think I will try it. I will be using it to maintain a fully charged battery. I will post how it turns out.
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Don't forget, this qualifies for a solar energy tax credit. Thus, you can get a much better unit for the same price as a cheap one.
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08-26-2015, 09:30 PM
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#10
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Junior Member
Join Date: Jul 2015
Location: Scottsville
Posts: 5
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Wow. Did not know that. Thanks.
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08-27-2015, 11:56 AM
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#11
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Senior Member
Join Date: Jun 2015
Location: Bay Area
Posts: 765
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Please could you help me to understand the best route to go forward:
- I will order a new White Hawk soon
- I am planning to buy AGM batteries and put them inside the trailer or in a cargo compartment in the back to kill the tongue weight and to have them in more secure place (would appreciate comments if this is a bad idea)
- many campgrounds where I will be going will not have hookups, so I would need a solar panel or generator to recharge batteries
- we do not watch TV, so I assume we will not use a lot of the electricity
- however, we have a toddler and I am not sure whether from time to time we would not need to run the air con - then we would need a generator
I am planning to start with the solar panel and check whether the generator is really needed. What kind of size I should be looking at? White Hawks are "solar ready" - does it make things easier? If I move the batteries from the front to the back of the trailer, does it make any difference?
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08-27-2015, 12:36 PM
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#12
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Senior Member
Join Date: Sep 2014
Location: Tupper Lake
Posts: 218
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X2 Jipsmjim. My Renogy 100 watt solar system was literally the best investment for my TT I ever made.
__________________
As long as everything is the way I want I'm totally flexible.
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08-27-2015, 01:01 PM
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#13
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Senior Member
Join Date: May 2015
Location: Campbell Hall
Posts: 2,835
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Quote:
Originally Posted by bono
Please could you help me to understand the best route to go forward:
- I will order a new White Hawk soon
- I am planning to buy AGM batteries and put them inside the trailer or in a cargo compartment in the back to kill the tongue weight and to have them in more secure place (would appreciate comments if this is a bad idea)
- many campgrounds where I will be going will not have hookups, so I would need a solar panel or generator to recharge batteries
- we do not watch TV, so I assume we will not use a lot of the electricity
- however, we have a toddler and I am not sure whether from time to time we would not need to run the air con - then we would need a generator
I am planning to start with the solar panel and check whether the generator is really needed. What kind of size I should be looking at? White Hawks are "solar ready" - does it make things easier? If I move the batteries from the front to the back of the trailer, does it make any difference?
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Save the bux and stay away from the AGM batteries. Flooded cell deep cycle batteries are a must if you are going to be camping without plugging the RV into the grid.
You'll also need at least 3KW of genset to run an air conditioner.
__________________
TT 2015 19RD "TheJayco"
TV 2003 F-350 "Montblanc" - Housebroken chore truck
Sitting in The Cheap Seats.
And proud of it!
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08-27-2015, 01:06 PM
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#14
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Senior Member
Join Date: Aug 2014
Location: Wheatfield
Posts: 1,091
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Quote:
Originally Posted by bono
Please could you help me to understand the best route to go forward:
- I will order a new White Hawk soon
- I am planning to buy AGM batteries and put them inside the trailer or in a cargo compartment in the back to kill the tongue weight and to have them in more secure place (would appreciate comments if this is a bad idea)
- many campgrounds where I will be going will not have hookups, so I would need a solar panel or generator to recharge batteries
- we do not watch TV, so I assume we will not use a lot of the electricity
- however, we have a toddler and I am not sure whether from time to time we would not need to run the air con - then we would need a generator
I am planning to start with the solar panel and check whether the generator is really needed. What kind of size I should be looking at? White Hawks are "solar ready" - does it make things easier? If I move the batteries from the front to the back of the trailer, does it make any difference?
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If you run air or a microwave, you need a generator. We DO use a TV after dark, but ours is a 12 V so we don't need a genny for that. Since the solar keeps the 12 v charged our genny hardly ever gets used, but we would still not be without it .
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08-27-2015, 01:14 PM
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#15
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Senior Member
Join Date: Jun 2015
Location: Bay Area
Posts: 765
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@mike837go - I thought AGM are deep cycle batteries. Not taking the costs into consideration, what are benefits of having flooded cell deep cycle batteries over AGM?
@gypsmjim - I understand that I need genny to run microwave. I can survive without this. The only concern I have is whether I would need to run air con for the toddler. We will see.
100 watt solar system is enough to recharge the batteries?
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08-27-2015, 01:21 PM
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#16
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Site Team
Join Date: Nov 2012
Location: Clearwater, FL area
Posts: 5,196
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I guess we need a little more information...
- Are you only going to be using 12 volt things in the TT?
- Are you going to be purchasing an inverter (converts 12VDC to 110VAC so the doodler can watch cartoons on a rainy day(s))?
- How long are your stays at CG's that do not have hookups?
- Do you have LED's installed in the TT?
- How much power do you need?
As for the batteries, keep them where you currently have the cable that connects your batteries to your TT's charge controller. AGM's are nice but do you really need them? If you are going to put them in the storage compartment, then yes they would be a good choice. They cost a lot more... Deep cycle flooded batteries are cheaper and work just as well. Adding another 30-50 pounds should not be an issue on the tongue weight.
Solar vs generator.. do you park your TT at CG's under trees (shade)? If so do not expect to get the rated output of the solar panel. Add a cloudy day or 2 and your batteries will never reach 90% charge. Depending on the Ah ratings of the batteries you purchase and how far you drain them each night (12VDC is the recommened lowest level you should discharge your batteries - 50% rule), you will have to match that with amount of SOLAR that will recharge them in 4-5 hours of sun the next day. Oh, and your batteries may be rated at 220Ah, but you can only use 50% of that or 110Ah (50% rule).
If you decide to add an inverter in the future so the little one can watch Tv, you need to mount that inverter AS CLOSE TO THE BATTERY as possible.
If you mount the batteries at the rear of the TT, you will need to run the proper size cables to the TT's control center.
Solar ready on most TT's means that at the battery they installed a SOLAR industry plug so you can plug in portable panels to it.
Good Luck,
Don
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08-27-2015, 01:21 PM
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#17
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Senior Member
Join Date: May 2015
Location: Campbell Hall
Posts: 2,835
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Quote:
Originally Posted by bono
@mike837go - I thought AGM are deep cycle batteries. Not taking the costs into consideration, what are benefits of having flooded cell deep cycle batteries over AGM?
@gypsmjim - I understand that I need genny to run microwave. I can survive without this. The only concern I have is whether I would need to run air con for the toddler. We will see.
100 watt solar system is enough to recharge the batteries?
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Absorbed Glass Mat batteries are incredibly solid. You can mount them in any position and vibrate them. And they will still function. But they are NOT deep cycle. They are very thin 'plates' wrapped with fiberglass and just enough electrolyte to function. No vents no spill. They are a starter battery. Short discharge and then recharge immediately.
But, you need thick plates with lots of electrolyte to store lots of electricity. And get it back several times. Deep discharges destroys batteries. So, go with battery that will take that kind of abuse.
__________________
TT 2015 19RD "TheJayco"
TV 2003 F-350 "Montblanc" - Housebroken chore truck
Sitting in The Cheap Seats.
And proud of it!
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08-27-2015, 01:24 PM
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#18
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Senior Member
Join Date: Sep 2014
Location: Tupper Lake
Posts: 218
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Bono,
My 100 watt solar works well on sunny says and keeps both batteries fully charged even when we watch TV at night. On cloudy days I start loosing recharging capacity however. I have to respectfully disagree with Mike837go. My Honda EU2000 runs my air-conditioner even with a 100 foot extension cord. However, I don't turn on anything else that would draw a lot of power like the wife's vacuum. It tripped when I tried to use both.
__________________
As long as everything is the way I want I'm totally flexible.
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08-27-2015, 01:36 PM
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#19
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Senior Member
Join Date: Jun 2015
Location: Bay Area
Posts: 765
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Thank you Guys! It all makes a lot of sense.
@Mustang65 – re 12 volt things in the TT: I do not know yet. I think the inverter will be a good thing to be able to recharge the phone, etc. If I install inverter, how does it work – I will have one dedicated socket for 110 V?
As far as LED as concerned – I believe new White Hawks have LEDs. Usually, we will be going for weekend trips, 2-3 days, with probably 2-3 longer trips per year. I am not sure about the tree, etc. now. However, we are in California, so there is usually a lot of sun.
@mike837go – thanks, I thought AGMs are deep cycle. Looks like this is not the best option for me.
@ tawoo – one EU2000 is running your air con? Is this 13.5 btu or 15 btu air con?
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08-27-2015, 01:53 PM
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#20
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Senior Member
Join Date: Sep 2013
Location: South Texas
Posts: 7,206
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Quote:
Originally Posted by mike837go
Absorbed Glass Mat batteries are incredibly solid. You can mount them in any position and vibrate them. And they will still function. But they are NOT deep cycle. They are very thin 'plates' wrapped with fiberglass and just enough electrolyte to function. No vents no spill. They are a starter battery. Short discharge and then recharge immediately.
But, you need thick plates with lots of electrolyte to store lots of electricity. And get it back several times. Deep discharges destroys batteries. So, go with battery that will take that kind of abuse.
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Trojan makes several AGMs designated as "12V Deep Cycle".
Battery | Trojan Battery Company
Their Reliant T1275 AGM has 150 AH, but at well north of $300? Maybe not the best option for those of us with a budget.
Their cost is the ONLY thing keeping me from putting an AGM on my trailer. I just can't swallow that price when I don't boondock... I did put an AGM starting battery in DW's X-Terra, and I absolutely LOVE it.
__________________
-2018 Greyhawk 29MV
-2020 Jeep Wrangler Unlimited (JLU) (Primary Toad)
-1994 Jeep Wrangler YJ (Secondary Toad)
-2014 Jay Flight 28BHBE & Ram 2500 6.4L CC 4x4 (sold)
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