RV and Trailer owners will love this! So easy to install!

Подписаться 536 тыс.

Просмотров 206 тыс.

0% 0

DuraVolt Solar Chargers
amzn.to/2E8V1XR
My source for RV and towing equipment!
www.etrailer.com?etam=a0001
RV and Trailer
*Goodyear Endurance Tires 15":
www.etrailer.c...
*Goodyear Endurance Tires 16":
www.etrailer.c...
*RV Suspension Upgrade (travel trailer, Cargo Trailer):
www.etrailer.c...
*RV Suspension Upgrade (Fifth Wheel):
www.etrailer.c...
*Lippert Smart Jack:
www.etrailer.c...
*LevelUp Auto Leveling System:
www.etrailer.c...
*2 5/16 Trailer Coupler Lock:
www.etrailer.c...
*Equalizer Weight Distribution Hitch:
www.etrailer.c...
*B&W Companion Fifth Wheel Hitch:
www.etrailer.c...
*B&W Tow and Stow Hitch:
www.etrailer.c...
*E Track Cargo Management: www.etrailer.c...
*Sewer Hose: www.etrailer.c...
*Cut off Valve: www.etrailer.c...
*Hose Support: www.etrailer.c...
*Water Hose: www.etrailer.c...
*Water Pressure Regulator: www.etrailer.c...
*6000 Watt Generator Kit: www.etrailer.c...
*3200 Watt Inverter Generator: www.etrailer.c...
*2000 Watt Inverter Generator: www.etrailer.c...
*30amp to 50amp Power Cord: www.etrailer.c...
*LED RV Replacement Taillights:
www.etrailer.c...
*Fifth Wheel G Rated 16" Tires: www.etrailer.c...
*Fastway ALBM Hitch: www.etrailer.c...
*RV Camera: www.etrailer.c...
*Trailer Alignment Helper: www.etrailer.c...
*Folding wall mounted table: www.etrailer.c...
*Trailer Rims: www.etrailer.c...
*RV Steps: www.etrailer.c...
*BlueOx Hitches: www.etrailer.c...
*A frame Bike Mount: www.etrailer.c...
*Lippert Cord Reel: www.etrailer.c...
Truck Upgrades
*Airlift 5000 Ultimate Airbags: www.etrailer.c...
*Airlift WirelessAir Kit: www.etrailer.c...
*Access Toolbox Bed Cover: www.etrailer.c...
*Bed Mat Covers: www.etrailer.c...
Channel Sponsors
Visit Road Armor: www.roadarmor.com
Visit etrailer.com: www.etrailer.com
I would also like to thank all my subscribers who give me a reasons to make these videos in the first place.
Feel free to join my Facebook page: bigtruckbigrv
Music by: Autonautix
Music by: Bensound Disclaimer: Big Truck Big RV (BTBRV) is a RU-vid Channel that may provide personal suggestions and recommendations on various topics, but you should do your own research. This channel for entertainment purposes only. This channel participants in the Amazon Services LLC Associates Program, with earn fees by linking to Amazon.com and affiliated sites. Sponsored items may be in this video. Always research multiple sources before making a purchasing decision. As an Amazon Associate I earn from qualifying purchases.

Авто/Мото

Опубликовано:

27 авг 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 181

@joshreed7908 5 лет назад

I once fell off a 50 ft ladder... good thing I was on the first step lol.

@dalek.6171 5 лет назад

Even better the ladder wasn't upside down !....was it?

@austinnipper6460 4 года назад

@@dalek.6171 As long as the ladder wasn't on the edge of a lower roof or held up by a rigged up platform then you'll be fine.

@turdboman 4 месяца назад

🤣

@stevenmorris3181 5 лет назад

With a 7-0 trailer you can bring a rack up from the frame and install the real thing with no roof or wall penetration. All wires travel inside the rack and penetrate the floor. Doing it now.

@ThunderCat19D 3 года назад

Every time I hear someone else say ... It's italian " fragile " it makes me smile

@dgc7321 5 лет назад

I'm an Occupational Health & Safety Officer in BC, Canada, and although your friend is right about the ladder, here in British Columbia, he has to be higher than 10ft. or higher before Fall Protection is required.

@wildcatoutdoors 5 лет назад

6ft osha in u.s.

@mike1340hd 5 лет назад

4' in CA

@ropetrick6289 5 лет назад

I fell off the 3 step of the ladder doing work my my fifth wheel and broke my heel off. It went back into the right place but I had to be non weight bearing for 3 months to my left foot. I believe in good ladder placement now.

@todddunn945 5 лет назад

I have several comments. First, wiring the panel directly to the battery will pull the panel operating voltage down to the battery voltage. A 50 watt nominal 12 volt panel actually operates at at about 18.5 volts in full sun where it will produce 2.7 amps. Connecting it directly to the battery will pull the voltage down to around 13 volts max, so the power you will get out will never be more than 13v x 2.7a = 35 watts. Second, a 50 watt panel is too big to directly connect to a less than 100 amp-hr battery like you have (looks like a GRP 24). The panel will NOT self regulate no matter what the manufacturer says. In a sunny place like Texas that panel WILL overcharge your battery in the summer. The only possible saving grace is that applying the panel directly to the roof like that will cause the panel to run very hot. That will decrease its output dramatically AND will greatly reduce the panel's life relative to a mount with air flow under the panel to keep it cool. You made a big deal about preventing leaks, but didn't use any sealant on the wire mounting screws you put into the side of the trailer. You could have bought a high quality monocrystalline rigid 50 watt panel, an MPPT controller, mounting brackets and some 3M VHB tape or eternabond tape and made a much better install for under $200.

@jmqrsq 3 года назад

Would you mind helping someone do what you mentioned at the bottom of your comment? Materials list maybe?

@todddunn945 3 года назад

@@jmqrsq I can make some suggestions if you give me the specifics of what you want to do.

@chicothesavage 3 года назад

Would that 50 watt panel be able to charge stuff like Dewalt batteries , run compressor ect ??

@todddunn945 3 года назад

@@chicothesavage ha, ha, ha. Of course the answer is yes IF the panel is connected to a big enough battery bank and has a big enough inverter. It just might take a LONG time to recharge the battery bank after running the compressor. The DeWalt batteries not so much (say an hour or so of full sun for a 2 amp battery, but you will still need an inverter.

@Dino_Daniel 3 года назад

What would be a good setup to run a stereo and lights for a few hours at a time. Maybe a little more power in case I need to charge power tools. Also running a vent fan too.

@Tsiri09 3 года назад

That 50 watt panel isn't shown on Amazon any more, but they do have many other duravolt products. 50 watts can be used for so many things!

@ARepublicIfYouCanKeepIt 5 лет назад

...or, for less than half the cost ($159 all-in), you can get a comparable solar panel (12VDC, 50W, flexible) and a capable MPPT charge controller (lead acid chemistry). The wiring is just as simple, yet you have so many additional options for expansion, etc. As for this installation, a) a waterproof entry gland is cheap insurance against leaks, b) the Dicor lap sealant is way over kill, and c) the efficiency of these cells will be comprised as they heat up for to lack of air flow underneath them. Still not requiring roof penetrations, I'd affix low profile aluminum channel to the roof, then mount flexible panels to a thin rigid plastic substrate and the substrate to the channel; all with VHB tape. The channel allows air flow under panel(s), minimizing efficiency reductions from panel heating. A length-wise orientation would minimize wind resistance, but could induce some lift during transit, while a width-wise orientation would result in slightly more wind resistance without lift. In short, affixing any solar panel directly to a structure without adequate air flow will reduce their efficiency while simultaneously shortening their life.

@mferrarorace 2 года назад

This guy has no idea what he is doing. Glad you wrote this, saved me from typing.

@charlieporch3181 5 лет назад

All flat panels need to be cooled. You should have it mount on brackets. All can be installed with 3M products.

@tonyfisher4113 6 месяцев назад

Lap sealant absolutely needed.

@ek9772 5 лет назад

“...drip loop.” Amazing how many people skip this one. A quick, clean, and hopefully long lasting installation using a minimum of parts and tools.

@lorddraguil 5 лет назад

first time I've seen a reservoir constructed with a solar panel and silicone

@liers99 2 года назад

This particular panel is no longer available. They still offer a panel with the same performance but doesn’t have the 3m backing. It mounts with screws

@jamestherealsirfishalotbuc9253 5 лет назад

someone give this man a Klondike bar, and perhaps some real tips on solar as well...

@ilyamitrofanov641 5 лет назад

Such a big roof can potentially produce so much energy! The question is where to store and use it not to mention the price. Just a thought)) Maybe trailers will have electric motor-generators in the future with the function of recuperative braking...

@akbychoice 5 лет назад

Ilya Mitrofanov then the Gooberment will tax you

@thecat6062 5 лет назад

It's not the falling, it's the landing...

@Loxodrom3 5 лет назад

dude... I broke my leg from a seven foot fall. Thank you for doing it the right way ;-)

@robshaw4965 2 года назад

Now that it’s been a little time, how is the panel working?

@herb7877 5 лет назад

GREAT idea on the drip loop. This is not meant as a backhanded compliment or snide remarks; but I spent 2 years on & off researching Solar prior to the installation on my tt last year. I was going to go the flexible panel route (and not the cheap ones) until almost everyone who had a year prior had major failures. A lot of them documented on You Tube. This was regardless of supplier. A local solar supplier quit stocking them about a month prior to me trying to place an order from him. He had had too many customers return them with failures. I ended with a small (glass) system to tide me over hoping quality & technology will catch up. I’ll be real curious to see a follow up in about 6-12 months on yours. I wonder if the price of these is representative of a “cure” with the problems they use to have ? And no charge controller ? Although you’ll be lucky to average more than about 1-2 amps per hour, how do you prevent over charging?

@rrf482012 3 года назад

Well here is the million dollar question........how is it performing after over a year??

@Erin-Thor 5 лет назад

I was always told that bracket mounted solar was MUCH better (superior) than surface or flush mount solar panels. The reason was cooling, the heat has to go somewhere. If there’s a gap between the panel and the roof, the heat has a place to go - No gap, the heat transfers to your vehicle through the roof. Also that if there is any flexion in the lightweight flexible panels, it’s all still glass. The solar cells crack, that cell on the panel is toast, and gradually over time as more and more cells crack, you lose output. This doesn’t happen as often on framed, raised solar panels. Is this true or false?

@MYCHANNELWITHMYSTUFF 5 лет назад

true

@halledwardb 11 месяцев назад

We have 2400 W of flat mounted panels, and I can say they work just as well for solar as they do as heat reflectors. Keep some space.

@Erin-Thor 11 месяцев назад

@@halledwardb - No space means you are transferring the heat to your roof.

@halledwardb 11 месяцев назад

@@Erin-Thor Don't think so. We have measured this stuff and lived with it for 4 years, so theres that.

@Erin-Thor 11 месяцев назад

@@halledwardb - The heat goes somewhere… 😳

@2000talon 11 месяцев назад

I sprained my ankle coming down a ladder 10 ft away from where i sprained my ankle bad 10 years before!!

@ricwestdoesitwork 5 лет назад

Great video of solar panel install. Thanks for sharing JD.

@maurice-ericrancourt5764 2 года назад

Very nice thanks for sharing

@loganp7043 5 лет назад

Absolutely love all of my Dewalt tools I was thinking about getting that Dewalt fan

@darrelranf8060 Месяц назад

Would be nice to see what you did with the wire after the drip edge. Kind of dropped the ball at that point and didn’t explain how the wires got back out to the battery.

@WDWRLD 5 лет назад

Should have drilled through the roof, then sealed the hole with 3M 5200. It will never come off crack or leak and will outlast that trailer. The hole shoild have also been within a 1/4 of where wire exited the panel and completely cover the wire with 5200. The way you have it one tree limb rubbing the rail will destroy that wire. Also, is that wire fused at the battery?

@tommyodonovan3883 3 года назад

I fellow co-worker&friend fell from a ladder 20' he didn't tie off the bottom or someone to hold the ladder, it was on ice and he neglected to deploy his ladder cleats. He broke both legs and one wrist, a real fuk'n horror show.

@groundzero. 5 лет назад

why run the cable to the inside just to come back out? should of ran outside down the front in a chase way to protect it. way easier and quicker. way over priced!

@thetraveler5798 5 лет назад

Cool gadgets and inventions, again very practical.🌟🌟👍👍👍🌟🌟

@stevenmorris3181 5 лет назад

I guess if the panel goes bad you can always glue a new one on top

@rucksackransack 5 лет назад

Bwa-ha-ha-ha-ha...

@bradscottbutler 3 года назад

The link for the Dura volt panel does not work. Not finding this item.

@dalehefferman 5 лет назад

Very pricey for 50 watts

@gregg5574 5 лет назад

I agree Would never pay that much for a solar panel kit And it does not even come with a charge controller to prevent over charging

@randybryant9936 5 лет назад

Cool upgrade

@dedalliance1 5 лет назад

Should turn that cargo trailer into a Camper, that would be fun.

@mikedoherty5180 4 года назад

good job Mr. Fire Fighter!!

@mattwillman6406 10 месяцев назад

Impressive

@Brandon-yp2wy 5 лет назад

Have you seen the dewalt 20v max powerstation? It's basically a power inverter that runs off 4 dewalt 20v or 60v batteries. I can also be used as a 4 port charger. If you have a lot of dewalt tools, you might like that

@BigTruckBigRV 5 лет назад

That's cool! I'll have to check it out... (Means I'll likely get one)

@Brandon-yp2wy 5 лет назад

@@BigTruckBigRV Haha nice JD! Here's a video on the powerstation. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-WKqCMYEbdaY.html I have to warn you though, the video might make you want to buy the dewalt toughsystem boxes too lol.

@fyredyver 2 года назад

Darned firefighters! 😂😅🤣

@cdayejr 3 года назад

I don’t care about all the other stupid people making negative comments thank you for sharing I have one question and it’s simply what do you use the battery for on the front of the trailer just curious?

@josea5949 5 лет назад

Why not mount it towards the front of the roof and run the wire straight down to the battery? Maybe even loosen the screws on the diamond plate trim and tuck them under that?

@whitenas 5 лет назад

$350! Insanely overpriced. If they sold them for $150 they would sell 10x the amount. However price aside I do like it.

@pepecorleone9021 5 лет назад

Most traditional glass aluminum frame panels have a 20-25 year guarantee and will continue functioning well after this.. I guarantee you these flexible panels will be shot in a fraction of that time, UV rays will completely degrade whatever clear plastic theyre using over the cells.

@stacyreid5077 5 лет назад

Harbor Freight has 150 watt panel they put on sale for $150-200

@KuyaBradford 4 месяца назад

That little solar panel thing seems pretty cool! How did you wire it from the top to the battery? I know you described it, but how did you actually route it? Inside I assume? Did you use more wire holders?

@wallyjordan5060 5 лет назад

Great idea for cargo trailer purposes. I wonder what the response from the manufacturer would be concerning potential customers who have read alot of bad reviews and seen lots of videos where direct contact solar panel mountings have failed and/or had performance issues due to mounting the panel directly to surfaces.

@rulerbrexbear1239 3 года назад

Hey is the link not working for anyone else or just me?

@repairvehicle 5 лет назад

Awesome information.

@richardmain8059 5 лет назад

Just a thought I had, the wire routed under and coming out under the leading edge of the trailer, hope the edge is not sharp, thinking of the wire insulation wear, rubbing as you bounce rolling down the road, also is there an inline fuse?

@pepperman9 4 года назад

Who else shook their head through most of this? If only he would have told us the same thing 5 times for every step, we might have understood it better. Did he say he made sure to put a drip loop on the wire that was attached to the panel which had 3M adhesive on the entire back? I think I missed that.

@guidoftc8304 2 года назад

Hey u didn't show it working or how much voltage it giving to battery

@woodrow1037 5 лет назад

I have several friends that are retired firefighters. The hose jockeys are all the same.

@MYCHANNELWITHMYSTUFF 5 лет назад

Wow that's crazy expensive for only 50 watts. you can get a Renogy 100w panel for $119

@SamCarleton 3 года назад

Your product link doesn't work anymore, any chance you can update it?

@scottjohnson943 5 лет назад

Shouldn’t you have a charge controller between your solar and the battery?

@BigTruckBigRV 5 лет назад

Manufacturer claims it's not needed, but I am adding one anyways.

@ceciliapetrowsky2572 5 лет назад

What is the purpose of the battery if it’s a cargo trailer?

@x3dominator28 5 лет назад

Cecilia Petrowsky Mine uses the 12v deep cycle battery to both power my led lights inside, and my brake away kit for the trailer brakes. I also have a power jack on the tongue that uses the battery.

@brunner2136 5 лет назад

Nice!

@Gunfighter25.5 5 лет назад

Suggest you get a headset to hold your camera so you can use both hands.

@robhammons1536 5 лет назад

Dang. $368.75 for that solar panel. Please review items that normal people can afford.

@myleshansel7950 5 лет назад

I love his video's but I'm with ya, a lot of stuff us normal broke people can't afford

@101perspective 5 лет назад

Yeah, the thin panels are way too expensive. And this one seems to be on the high end of that even. The really crazy part is that their life expectancy is just a fraction of that of the normal panels.

@thegan9143 5 лет назад

Check this video out. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-3-sc4rlV93g.html 6.2 Amps 12v is 70+watts for $100 AU. Not sure you can get them but it does illustrate that there are some good and cheap ones out there.

@stacyreid5077 5 лет назад

I know Harbor Freight has 150 watt panels that they put on sale for $150-$200 all the time I have a smaller 10watt that use on my horse trailer that got from there years ago that I paid about $40 for it which if you don't use up the battery every day it does good.

@101perspective 5 лет назад

@@stacyreid5077 I got my panel from Windynation. A 100watt panel there costs about $100. For the flexible ones it is like $120. I put my panel on the roof of my van about 4 years ago. It's still working great.

@Nighthawk368 5 лет назад

If you're paying more than $1.50 per watt, your getting ripped off.

@jake3705 5 лет назад

He probably got it for free. If you go to the amazon link the first picture is of his channel and the review.

@loveourplanetadventures7306 4 года назад

They have come down on price now..I payed a dollar a watt on my 160 watt panel after summer. Just hit the right time. Did a removable solar system bungee system.check it out...ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-DlPbqiNRy0Y.html

@TimothyDanielIsaiah Год назад

I really like this! I’m needing help from anyone who can give advice. Would this set up run lighting and computer and phone charging stations full time?

@MRHEAT20 5 лет назад

Great review and it looks like a great product and super easy to install - thanks

@everythingyouknowis 5 лет назад

Isn’t a solar charge controller needed also?

@davidwatson4116 5 лет назад

Needed yes....absolutely required no...smart to have it yes. check out the reply from @John Coloe

@S8BB 5 лет назад

Very cool. Thank you for showing these products and how to install them. Some really useful ideas here

@josualewis5354 5 лет назад

You should move your battery into the trailer so it cant get stolen

@sprucegoose1016 5 лет назад

Great product 👌 You get what you pay for 😎

@dennismassie3552 5 лет назад

👋🏻FLORIDA ☀️🌴🇺🇸

@2-old-Forthischet 5 лет назад

Just a thought but why not keep everything a 3M installation? I use and trust 3M 5200 to seal all of my below waterline intrusions on my boat. It is considered a permanent fix.

@vrich3733 5 лет назад

Be mindful of low hanging branches on the road. That will rip that wire right off the side and destroy it.

@jokerbobcatfish7981 5 лет назад

Lol they misspelled Reversible <a href="#" class="seekto" data-time="213">3:33</a>

@fritzduval 5 лет назад

I would have the battery inside the trailer to prevent theft and a cleaner look. Looks bad on the tongue frame. FYI

@armslength2618 5 лет назад

What's the maximum snow depth that panel would still work under?

@EveryDayPreppersUSA 4 года назад

Just found your channel and have been watching some of your great videos. I have just acquired a 2019 6x12 Cargo and looking to first add a battery to the exterior. I didn't see a link to your Battery Box nor your battery; Can you post a link? I have an Anvil trailer and dont know if I have room for a Battery but I will not know until I get the measurements for the plastic battery box. I do like your oversize box, that would allow for storage of a few extra items.

@kennethterrell1167 4 года назад

Good panels cost about $1 per watt,

@MetaView7 5 лет назад

those panel's performance degrades quickly with heat.

@michaeldierks3708 5 лет назад

I’m guessing one of your next upgrades will be a power tongue jack?

@BigTruckBigRV 5 лет назад

Maaaaaybeeee

@richardtaylor9798 3 года назад

FF buddy camera shy and didn’t want to buy ice cream for his crew? “Dude! I saw you on RU-vid I like rocky road”. Had that said to me a time or two.

@Mr.Worf63 5 лет назад

$368 USD ! That’s pretty cheap considering a 20 Watt goes for $500 CND plus $12 for shipping . The 50 Watt doesn’t ship to Canada . Over $400 here .

@problemslayer3538 3 года назад

Is the DEWALT fan noisy?

@jamest.5001 5 лет назад

That isn't going to last! A few years at most. I got 150 watt panels for $145, and they are glass. With coating. And I have seen 155 watts from each of my panels, powering my offgrid house.

@marks6072 5 лет назад

Great product but too much $ for just 50Watts

@scottleggejr 5 лет назад

smile.amazon.com/dp/B07595K5QS Basically the same thing @ half the price...

@natedog51 5 лет назад

Possibly, but realize whether you are using the battery or not, as long as it's decently sunny it's providing a charge to the battery. Great for outdoor storage of a trailer and maintaining a battery that isn't on your property (i.e. no more unhooking and hauling the battery home with you for extended periods of storage)

@terrywaters6186 5 лет назад

@@natedog51 You can do the same thing with a $19 Harbor Freight solar battery maintainer.

@ARepublicIfYouCanKeepIt 5 лет назад

@@natedog51 Uses cases for which 50W isn't necessary.

@davidkern1352 5 лет назад

I like the telescoping ladder! What brand is it?

@travnat1 5 лет назад

"Indestructible solar." But its "Fragile, Handle With Care"

@ADVENTURE_HP 4 года назад

The link doesn't work anymore for the solar panel

@bradley200711 5 лет назад

wait a minute, I thought solar panels needed airflow behind them to keep cool. When they don't keep cool, they produce less power. Way less. I do not like this install.

@anishajohnson2596 3 года назад

What can the battery power? Is this option better then using an generator?

@Pilot545 5 лет назад

Looks like a great piece of equipment! Definitely gonna take a look at them.

@akbychoice 5 лет назад

Did you put a grommet in the hole where the wire penetrates the trailer wall? Curious to see how this pans out long term. I’m not familiar with solar enough to understand where power goes when the battery is fully charged.

@affordablelawnservice5091 2 года назад

Why not just run it down the outside in the front. No holes drilled??????

@stormbornrabbit1705 2 года назад

Would it be a bad idea to install Plexi over top of this solar panel?

@rikosuavesito07 3 года назад

Looks like they don't sell it anymore? Do you still have it any updates? Does it work as advertised?

@RobertKohut 5 лет назад

Nice!!

@michaeleades8935 3 года назад

Christmas story the sexy lamp fragile

@pushbroom9398 3 года назад

So how's the longevity review of this product?? Still working for u today??

@kentkurt9065 3 года назад

How do they work when it hailing on them

@nonrevhogan8938 5 лет назад

What is the battery running? If solar is just to keep battery 🔋 topped off, wouldn’t the smaller one 8-10 watts that is on the Reese keep this one topped off too. Just wondering what the need for 50 watts is. Don’t remember a video showing what you use that trailer for.

@akbychoice 5 лет назад

NonRev my thoughts as well.

@FranksBmwAdv 4 года назад

the link dont work for solar info

@mikedean8061 5 лет назад

I never heard what the battery is going to be used for. Sooo, what is purpose of installing the battery with the solar?

@jamesbeaman6337 5 лет назад

Mike, you must not have watched this channel very long LOL. Knowing JD, before long he will have 10 new accessories on this trailer drawing power.

@davemiller8085 5 лет назад

Everyone I know is dead from falling off their front porch... heaven help them if they got on a trailer ;)

@jaysahr5835 5 лет назад

Do you not have inverters that charge the battery when your on the road?

@dallanc5199 5 лет назад

Just last night a girl at my sons work fell off a 4ft ladder, hit the corner of a sink and broke several ribs. It can happen for sure. As for this kit, do you need a charge controller to prevent over charging?

@Sylvan_dB 5 лет назад

no, it is only a 32 cell panel. I strongly prefer a 36 cell panel with an inexpensive charge controller. 36 cells will do a far better job, especially on hot summer days. Even just half a volt more from a 33 cell panel gives you just that little bit of margin when heat starts dropping the output. You can get a renogy 50watt starter kit for about $120, or a 100watt kit for $150-175.