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SunJack Solar Charger + Powerbank
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SunJack Solar Charger + Powerbank
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Product Description
Take advantage of the sunshine and power up while backpacking with the 5-watt SunJack solar charger and powerbank. The 10,000mAh high-capacity powerbank charges smartphones and tablets several times over Read More
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Customer Reviews
4.4
(26 reviews)
5star(20)
4star(2)
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keyboard_arrow_downJWC120
28
Jul 19, 2018
checkVerified Buyer
Outstanding item, I got mine with two batteries and I use it constantly On the dash of my vehicle to keep items charged for day hikes, as well as on my kayak for boating trips and my tent on camping trips, its kept my camera, phone, GPS, headlamp and flash light charged as well as running lights at night, as well as charging an electric cigarette lighter that SunJack also offers! Mine has worked from day one without problem and I have even gone direct to SunJack for other products they offer.
Sfcoffee
2
Apr 13, 2019
checkVerified Buyer
funny that someone returned it because the package said the battery was 800 mah. The battery says it’s 1000 mah . 14 watt works great makes power in the shade
timli001
0
Apr 13, 2020
checkVerified Buyer
It works quite well.
Its a nice power bank and I have had no problems charging the batteries. Its a bit heavy to carry but its good to use when you're not near a power source to charge your battery.
Recommends this product? Yes
rac_sword2
15
Jul 11, 2018
checkVerified Buyer
The only thing I don't like is the batteries being held in that pouch get pretty hot already, even more so when in the sun. If it included some kind of foldable leg for the pouch so that it could allow air to go under when placed on a surface. Maybe a sort of heat dissipation separator between the batteries and the back of the panel. Either way, I dont know how they could make it better and it does everything it says it does. I got the 20W one fyi and already used it during scout summer camp and cub scouts camp. You try charging a portable battery fan without a plug :).
ShawnRufus
47
Nov 25, 2018
rac_sword2Be careful with those batteries. They are lithium polymer, manufacturers are getting away from them bc they r known to catch fire and explode. Buy a lithium ion battery pack they last longer and r safer.
mwheinz
7
Jul 3, 2018
checkVerified Buyer
It's a solid battery pack, but the solar charger is ineffective.
BReid6
4
Aug 24, 2018
checkVerified Buyer
I'm not sure what's going on with my power bank but it will NOT charge and play my small bluetooth speaker I bring into work. The charging was so weak on the battery that the speaker died. Changing it to a regular plug in charger let me play and charge at the same time. I haven't had any problems with charging my phone but dont expect this to charge much from the sun or power anything more than a cell phone. (Low Wattage model. Should have opted for the better wattage? Doubt it would work though.)
The speaker issue really is a bummer and the sole reason I got the battery because plugging my bluetooth speaker into an outlet is really difficult as I work construction and I'm always on the move.
Also, I charged this bank in direct sunlight and it did NOT charge to full capacity. 6 hours in direct overhead sunlight did nothing.
Save your money and get an Anker power bank on amazon or something else. Something that actually WORKS.
The speaker issue really is a bummer and the sole reason I got the battery because plugging my bluetooth speaker into an outlet is really difficult as I work construction and I'm always on the move.
Also, I charged this bank in direct sunlight and it did NOT charge to full capacity. 6 hours in direct overhead sunlight did nothing.
Save your money and get an Anker power bank on amazon or something else. Something that actually WORKS.
bpchristensen
172
Oct 8, 2018
BReid6Are you trying to run a BT speaker directly from the 5w panel, or are you using a battery (which comes with the 14w and 20w panels). What is the power draw of your speaker? This is a straightforward math problem - if the speaker draws more power than the panel provides, then the battery will not charge and will eventually be depleted. (Think of trying to fill a bathtub at a slow trickle while the water runs out the drain)
If you're trying to run the speaker straight from a 5w panel, then the problem is not that it “doesn’t work” but that you’re trying to use it for something that it was not designed. Chances are that your BT speaker requires more power to operate than the 5w panel is capable of producing (less than 1 amp at 5v). Does that BT speaker have a battery?
What BT speaker are you using?
What BT speaker are you using?
Wonkwonk
54
Jul 13, 2018
checkVerified Buyer
Solar panel straight up doesn't work. I let it sit in the sun for 4 days and it didn‘t Charge at all. Plugged into the wall it does charge. As a battery pack it is over sized and under powered. Don’t buy this. I got the 5w version,
bpchristensen
172
Oct 8, 2018
WonkwonkSo I'm guessing that you have the 14 watt panel and the battery pack that comes with it (claimed at 10,000 Mah). Based on the information provided, I'm not sure what the max charge rate is to the pack. The specs list 2 separate USB ports rated at 5 volts/2.4 amps each (this is the normal max for most USB ports). Assuming perfect efficiency, either one of those ports will generate about 12watts of power in full sun. The 10,000 mah power pack also delivers its power at 5v (since it is USB), so it stores about 10 amps x 5 volts = 50 watts of stored power. So assuming 100 % efficiency and a perfect conversion AND perfect sunlight, you would expect it to take at least 5 hours. But since things are not perfectly efficient, AND smart rechargeable systems slow the voltage down as it nears full charge (therefore the last 10% take about 30% of the time), a realistic goal would probably be about 8 hours for a full charge.
Was this your expectation, or did you expect it to charge in an hour or two like the way a wall charger does?
By the way, its getting late, and I'm beat so if I got any of my math wrong, I hope someone will correct me. But this is the sort of thing with solar panels that a lot of people have unrealistic expectations about...
Was this your expectation, or did you expect it to charge in an hour or two like the way a wall charger does?
By the way, its getting late, and I'm beat so if I got any of my math wrong, I hope someone will correct me. But this is the sort of thing with solar panels that a lot of people have unrealistic expectations about...
Bigcountry
8
Jul 4, 2018
checkVerified Buyer
I hate it... I used it 3 times and now won't charge...I guess I'm going to go back to power banks and be done with it... Very displeased
Syrihl
15
Jan 30, 2021
checkVerified Buyer
Tested a couple of times. Seems to charge included battery packs well enough in full sun. Time will tell how durable it is.
Recommends this product? Yes
Renfield
0
Jan 27, 2019
checkVerified Buyer
I used this once when the power went out and it charged the phone to about 70% in an hour which is better than I had expected. It also must have arrived charged because it was a cloudy day when I used it. I'd definately recommend it.
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