Update: More units added - coupon extended
A very good price on this Foldable Solar Panel that ships from Banggood's AU warehouse.
To get price in title:
Note: Title prices include GST & Shipping. Approximated AUD price, based on today's MasterCard rates, paying in USD
Referee gets $2 in coupons. Referrer gets 10% off (if referee spends over US$10)
Got it thanks. DC output will be super useful for charging my lithium batteries.
Hope you'll be using a charge controller so you don't over charge your batteries as 19v is higher than the recommended 14.4v
Of course. Certainly good advice for anyone else considering the same.
My current panels are 90W so I'll see how this compares.
New to these panels, any recommendations on the charge controller? Links?
@Cptkirk93: I have this one which is not the cheapest, but is MPPT and one of the best quality controllers on the cheaper end of the scale.
https://www.springers.com.au/shop/product/scc010015050r-vict…
you can just use connect the alligator clips to a lithium battery (in a battery box) without a solar controller?
I have both straight lithium batteries and the ones inside the "portable power stations".
New to this world and looking at upping my camping game. What batteries do you use? From a google something like River 2 looks good?
Straight would be up to 23.6v. Really need a solar charge controller to charge lithium batteries properly. If you connect straight to your batteries and they don't have a BMS it might catch on fire at 23.6v. if it does have a BMS then it would probably shut down due to over voltage
I've seen in the Q&A that "the product USB-C PD3.0 output: 19V/3A, 12V/5A, 9V/2A, 5V/2A, USB QC3.0 output: 5V/3.4 A, USB output: 5V/2A." So it seems we can use one of the USB-C outputs to charge batteries and phones, can't we?
@GreenRomeo: Sure will charge your phones at 5v via USB or maybe a laptop at 19v. As for batteries, there's different battery chemistries that may need different charging voltages and protocols eg constant voltage/current, float/tricky charge.
It will not get that high, open circuit voltage may be that high but as soon as you hook up a load voltage will drop to well below 20v.
@lgacb08: Yes there will be a voltage drop when you first connect it but when the battery fills up it will try to reach the open voltage of the solar panel and overcharge. Overcharging lithium batteries if what causes then you heat up and catch on fire. I personally would not charge a lithium battery without a charge controller and BMS
Easy to fit Anderson plug on this ?
I've never bought anything off Banggood - where is the description section on their webpage? Trying to find specs / more info on the item. Also if someone is able to help - I'm trying to work out if this will charge up a Dometic PLB40, which I have and powers a camping fridge of mine for almost a couple of days. I currently dont have any other way of topping the battery up, other than mains power. I'd just like to know if 100W is going to be high enough to do anything. Thanks in advance.
this is 2 panels, OP is 3, I dunno how fast it would charge but the more the better ???
To produce more power it has to be larger surface or more cell count.
Not sure how OP found this coupon which only works on the 100w only
First time heard about this, but seems really good value from a quick comparison with other sites. Hope it will be useful one day. Thanks OP!
Can these go directly on a 12 volt Large 4wd Car Battery Full time charging. . Is anything there to stop over charge. Any info or link appreciaated
You need a solar charge controller between the panel and your battery. The charge controller needs to be configured to suit your battery type.
can someone please tell me what all things you can charge with this? I've started camping lately and would love to add this to my camping tools but wonder what all it can power? Can I charge my laptop with this?
You need to see what the power requirements of your laptop are.
To get a clue, check the "output" measurements of your power-adapter.
Assuming you have a 12v battery bank and a 240v inverter, then yes. This wont power your laptop directly… Everything via battery/battery box with inverter.
won't laptops that charge via USB PD work directly?
As per product description:
USB-C PD3.0 Output 19V/3A, 12V/5A, 9V/2A, 5V/2A
I guess so but if the panel is shaded or cloud cover is variable or someone stands in front of your panel, it may cause your charger/laptop charge circuit to switch on and off frequently?
If I have 2 65w laptop plugged off of this, can they both be charged?
My friends and I were thinking LAN party while camping, especially with the steam deck and rog ally.
can they both be charged?
It also depends on how cloudy the day is.
What's the point of camping then. Enjoy the great outdoors, take a break from technology. Come back refreshed ready to slay the hordes of hell in Diablo
Because we're all adults who barely have time to gather as a larger group.
It doesn't stop us from enjoying the great out door nonetheless lol.
Genuine question, can this charge a Tesla 3? Thinking of buying one and living in it due to the rental crisis.
Genuine question…
…charge a Tesla 3
o_O
back of the napkin calc, a base model 3 would take around 8 days to charge from 0-100%
In all honesty though probably 2-3 weeks due to environmental factors.
Off by a factor of 10, i'm pretty sure. 100w = 1kWh per day if we're extraordinarily generous, for a 60kWh pack that's 60 days straight, double it if we're more reasonable.
That's more like delusionally generous….
Given that the notional effective solar hours in australia varies from about 7 hours down to not much in winter in southern regions,
and that most consumer solar panels have an oriental power rating perhaps 2 or 3 times more than measured reality…
and that a 19v solar panel can't charge anything at a higher voltage (such as a tesla battery pack) meaning you'd need a solar controller, and either an inverter and charger or a buckboost charger, with significant energy losses….
In reality you'd be taking much more than 1 year to charge the thing.
Finally…. a meaningful question!
Of course it can charge your tesla, with an appropriate buckboost charger. My back of the envelope calculations are that one of these in winter will charge your tesla in approximately 2.37 years.
In response to numerous other questions..
In the case of charging laptops at a LAN party while camping, sure you can charge 2 laptops with it if you use a solar controller/charger/inverter depending on the input voltage of your charger. It might keep those laptops and other gear adequately charged if you spend a lot of your camping time drinking alcohol/ imbibing other substances and recovering from the effects, and only occasionally doing the LAN thingey.
No you can't connect a solar panel direct to any modest sized battery of any type permanently to charge it, unless the solar panel is any bigger than an A4ish size, and the battery is tesla sized (and of a lesser voltage than the solar panel output)
No you can't connect this solar panel directly to any battery temporarily to charge it, without careful skilled monitoring with a multimeter…. without running the risk of cooking the battery.
All the things you could charge with the solar panel? Keeping in mind the above limitations, the list goes from A to Z. The correct question is all the things you can maintain charged with the solar panel while using them. That restricts the list to about 1/100 th of the A to Z list. Perhaps your rechargeable headband torch… perhaps your walkman. (do they still exist in the wild?)
It's easyish to fit anderson plugs to anything with wires.
What is the point of this then? Why can't I have something like this charge my portable power bank?
can this charge a Tesla 3?
Yes! Just make sure to buy enough (6 to 24) and connect them in series or parallel to suit the level of charging you need.
$78.99 on catch.com.au, still a good price at Banggood. Not sure about the quality though.
How do people get these coupons on bangood? Is it randomly advertised on products you've look at.
I just had a look at the banggood ad …. got a bit of amusement.
Note the bit in red in the solar panel specifications!
"Note: The 100W marked on this device is the result of open circuit voltage * short circuit current, that is,
the instantaneous output power of the solar panel (23.6 Voc*3.93 Isc), not working voltage * working current."
(Voc - voltage open circuit.. is the maximum voltage panels produce WITHOUT ANY LOAD APPLIED). It's relevant to other equipment circuitry voltage limitations, but not a factor in power output.
That's as close as you could expect a marketer to admit the 100W rating is bullshit.
For the curious… power output is voltage (V) x current (A)
Any "genuine" solar panel has a Vmp (voltage at maximum power output) figure on specifications. When I say "genuine" I mean marketed to buyers who need meaningful data about the panel to assess suitability for a purpose.
An analogy would be marketing an old VW bug as being capable of travelling at 170 kph going up a 20% road gradient, on the justification that the maximum rpm the engine can do (in neutral valve bouncing) is say 5,000 rpm… and that the gearing is such that top gear at 5,000 rpm equates to 170kph.
I agree that the advertised power rating is likely not reliable based on many factors such as weather, angle, temperature, etc. To find out, get one and test out (easiest with a power bank with meters) and see the actual power it can produce. Hopefully expect around 80w on good sunlight and middays.
The advertised power rating is not at all reliable based on their own admissions as @rooster7777 pointed out. The things you mention reduce output after that fact Expect nothing. Maybe be happy if you get half of what they advertise in ideal conditions.
It's sadly normal for folding solar panels to have 2x - 3x exaggerated power rating, so you can't really blame the seller, it's true for western brands too.
Fixed panels are usually more reasonably rated, and as a guestimate this one would likely get a rating of 70W if it was a fixed panel.
Probably looking at 50W-65W real world peak power in good summer conditions, depending where you are in Aus.
But this is guestimates on the assumption that the Voc and Isc ratings are actually accurate, and I wouldn't want to bet on it.
Yeah, I've learnt this the hard way. You get what you pay for.
This panel? More like 35w max when warm.
It'll depend on the charge controller, one reviewer says the voltage is low (~15.5v under load).
I've got a garbage one like that. Waste of a decent mppt controller, space and weight.
This isn't some amazing bargain, just typical watts for your $ for cheapo folding panels.
I foresee a bunch of disappointed buyers commenting here in a few weeks.
Yeah, this mat only got 3 panels on it, I have a proper rated sunpower 120w mat with 6 so hypothetical scenario you can pump 60w out of it but real world figure probably only 50w under very optimal situation and using best charge controller. But this one has only 18v so most mppt solar charge controller won't even work so you'll have to contend with pwm which will further reduce efficiency.
is it possible to run two of these in parallel? e.g. combined 200W into a BMS.
Not without a charge controller, voltage too high for BMS
Thanks, ordered one. Not sure what I'll do but should find something useful. It cost me $60.59 through paypal.
Any cheap power station for this?
I currently have my eye on getting a lifepo4 120ah battery from kings and this dcdc charger https://www.4wdsupacentre.com.au/kings-25a-dcdc-charger.html
Does anybody know if this panel would work with this type of charge controller?
Read the comments before you buy
This would make a good hiking /bike packing/ touring pannel to charge your phone and power bank, but would really not do much for bigger camping trips for most.
If someone bought this and in a few weeks wants to sell it rather than collect space pm me.
As others have noted the 100W rating is fake. The three panels are the physical size of 25W panels, so 75W.
However that's if they use quality cells, which these won't be. I'd be expecting 60W or so at best. Perhaps less.
The specs listed for the USB-C output vary too.
Also the price is also nothing special and the supposed discount is fake. The same model is available on eBay for $64 without a discount.
https://www.ebay.com.au/itm/19V-100W-Folding-Solar-Panel-Mon…
Impulse buy, should have read comments first!
what generators can you hook this up to?
Attempted to purchase, and got message saying the coupon can only be used 100 times. (Then came back to read the comments and was glad it didn't work.)
I find than old car and motorbike batteries work fine for storage if you're only using them to charge phones , iPads ect or combine with an inverter for another power point .
Inverters can be had on eBay for a quarter of what you pay at J-car/RTM (1000w Powertech) or get low power 12v cig alligator clips adaptor at jcar $14 .
It seems no one has questioned the real power this panel will produce. From one of reviewer says 65w max, I would say just expect half the advertised power, 50w in reality.
Agree, coupon expired.
Update: More units added - coupon extended
Thankyou. Just grabbed one!