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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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keyboard_arrow_downtheonug
273
Dec 20, 2018
Once again the picture is the most expensive model at $94.99 (29.99 + 65.00) while the price shown of $29.99 is for the budget model. C'mon MD, cut that crap out, these Trumpian tactics are unacceptable.
shard_inc
214
May 31, 2016
I wish it cut through steel that quickly. But, not a bike theif. It would take far too long, and be far too loud for that type of work. It, because of its size, is a perfect fine detail tool. Blowing my current cutoff tool out of the water. When the job requires something larger than the Dremel, but not so big it's time to shop out the full size tools. I'm sure it will eventually come out in the US market, I've just seen it in action, and it's one beautiful, purpose built handheld tool. And I refuse to support the super jacked up price listings there now from SE Asia. Knowing conversion rates, that is beyond unreasonable markup.
HanHyoJoo
23
May 31, 2016
shard_incyou actually checked the prices here in my region, :( sad eh haha, everything here is just full blown expensive :( literally everything, I think a lot of Massdrop fans actually come from my region haha, Amazon is like some sort of godlike market we can't touch :(. Makita doesn't have offerings for you? Trust me, I seen bike thief vids nobody gives a damn about what happens to bicycles.
MrDragon
11
May 5, 2018
This is the Third time I have seen this item on Massdrop. Every time including this time the largest solar charger is sold out by the time I see it. If each time you post this drop you run out of the 20W units maybe you should arrange for more of those or just have a drop for the 20W units.
ozedude
Jul 9, 2018
Somehow i doubt it would charge enough to make anyone a happy camper, especially hiker. A gimmick to me unless someone can prove otherwise.
waywardson
95
Dec 17, 2018
ozedudeI have seen solar panels on a few cycle touring setups, long hours riding in the sun means most of your equipment is charged by the time you get to camp. I'm considering either solar or a dynamo for my set up.
(Edited)
wesinator
18
Jun 10, 2015
Why would you get this panel when you can get a smaller 20 watt for half the price on amazon?
Anzial
1494
Jun 11, 2015
psynapzYou can actually find battery packs with 2A input. The problem with cheap solar panels is lower efficiency - 15% or less, while this pack is claimed to have 19% efficient panels which is the highest on the market right now. Cheap ones also will last not as long as this one, if you intend to keep it for a few years anyways. Efficiency is important because you can get more juice with less light. Those 20W panels for $50 will be nowhere close to 20W in real conditions for 99% of the time (not unless you live in Sahara that is :) )
BTW, it doesn't really matter where it's made, the components still come from China ;)
BTW, it doesn't really matter where it's made, the components still come from China ;)
Icass
6
May 5, 2017
Is it 13 oz. or is it 2 lbs? There seems to be a discrepancy in the posting and that is a big difference.
Icass
6
May 6, 2017
Thanks. Adding a full 2 lbs to my backpack would not be reasonable. I might consider 13 oz.
HauceSauce
4
Jul 22, 2017
IcassAre you being forced to put it in your backpack? Do you need help? Respond with safe word, "chupacabra," if you need help and we'll send the authorities. Oh, oops, this isn't the ultralight community.
MateFrio
21
Jun 9, 2015
Anker, Power Jack, ALLPOWERS and a few others do 14w or better setups like this for around $50.00. Add a battery pack for under $30 that has better capacity as well for an overall better set-up in my opinion for around $80 shipped if you have prime.
TRexSr
132
May 1, 2018
Ok so I've read some older comments and I'm going to summarize my question as this: 14W with 1 quick charge battery or 20W with 2 quick charge batteries, all with pass through charging and in a nifty designed case that is the solar panels. Is this really worth the money for the complete package? It seems so to me but I'm still new to this type of innovation. I'm slowly but surely moving into rechargeable batteries and I am meeting a solar power company rep in 2 days to see if I can afford to get into solar powered energy (despite Nev. Energy having a nasty monopoly on energy here in Vegas). I have a charger I bought from IKEA that's just under 11,000mah but it's slooooow (I expected it but didnt realize just how slow since it's been some time since I used a battery to charge a device)). The IKEA battery was around $15 and I figure it's good enough to power up a device overnight (namely my son's ipad) or as a real emergency need BUT I have wanted to upgrade my older solar panel battery kit which is probably circa 2014 and I haven't even used it yet; it's an emergency use situation. LOL...So what is the consensus on this drop or at the very least, the company and items? Thanks!
TRexSr
132
May 3, 2018
I recall some saying they got a bad panel pk so I would hope a decent warranty remedies that situation. All of them have the same output more or less but it does seem the 14 and 20W versions harnesses more light which should translate to more efficient/rapid charging. It is somewhat ambiguous that the 14W is rated to charge their 10k mah battery in and around 5hrs but the 20W says "2 batteries" around 5 hours. Can’t be sure of that because 6W differemcee doesn’t seem like a lot to have 1 panel charge 2 batteries in the same time that a 14W panel does for 1 battery. I bet you can charge a battery and device at the same time efficiently if you want to go that route. Still, if you get a good panel, MD seems like a sweet price compared to Amazon and more so from the manufacturer‘s sight. I want to get in on this but current budget needs are slapping me straight. Ugh...
FireMike
16
Jul 15, 2018
TRexSrKeep in mind that the 20 watt panels are a little bigger than the panels of the 14 watt models. I’m not an engineer, but it may help charge the second power cell in the same amount of time as the 14 watt model.
bpchristensen
172
Oct 5, 2018
FWIW, I use a Goal Zero Nomad 7 (2-panel 7 watt) charger on hunting and backpacking trips. I pair it with a Belkin 6,600 Mah battery pack and combined they weigh 718g or with the GoalZero Guide 10 pack and combined they weigh 600g . That is only slightly less than the 14w panel and 10,000 Mah battery in this drop, which represents a significant boost in both charging speed and capacity (if the specs are to be believed). If I didn’t have the Goal Zero already I’d be seriously considering this 14w bundle. Very handy for recharging headlamp, Earthmate, and smartphone while on trips lasting more than a couple days. One nice thing about the "Guide 10" battery pack/charger versus a typical "battery pack" like the ones on this drop is that it holds 4 AAA or AA batteries (3,200 mah or 8,000 mah respectively). The Guide 10 can then be used as a traditional "juice pack" like the ones included in this drop (albeit with less capacity), OR you can pull the batteries out to power a device such as a flashlight or headlamp and then pop another set of batteries in to be charged while you're away from base camp.
ONE IMPORTANT THING TO NOTE: Everyone gets hung up on charge times with solar panels. One disadvantage of these Sunjack solar panels is that the charging output is limited to a pair of USB ports. By design, USB ports are limited to 5 volts and ~2 amps each (max output ~10 watts). This means that if you are using the 20w panel to charge a single device, you have more panel than you need, since the total panel output is ~20w, but you are limited to using ~10w of that output. Obviously having a 20w panel will ensure that you're getting 10w of output in less than ideal conditions (assuming that the panels are all feeding the charge controller rather than 1/2 of them being wired separately to each of the USB ports). Charging a phone directly from a solar panel often doesn't work well because if the phone detects a voltage or current fluctuation outside a pre-determined range, it will shut off charging. I experienced this recently with my iPhone Xs and a solar panel. Solar panels are usually better used to charge an auxiliary battery, which is then used to power devices.
Interestingly, the battery pack(s) included in the 14w and 20w panels are compatible with QC3.0 charging, which charges at higher voltages and therefore charge much more quickly. However the solar panels don't support QC3.0 output, and no QC3.0 charger is included, so unless you have one, you'll be limited to old-school 5vx2.4a charging from a wall mount USB charger. Assuming 70% efficiency, that will mean about 6-7 hours to fully charge one of these from completely empty to completely full. With the 20w solar panel, you're probably looking at >a full day to charge from completely empty unless you are in the Arizona desert in mid-summer. :-)
ONE IMPORTANT THING TO NOTE: Everyone gets hung up on charge times with solar panels. One disadvantage of these Sunjack solar panels is that the charging output is limited to a pair of USB ports. By design, USB ports are limited to 5 volts and ~2 amps each (max output ~10 watts). This means that if you are using the 20w panel to charge a single device, you have more panel than you need, since the total panel output is ~20w, but you are limited to using ~10w of that output. Obviously having a 20w panel will ensure that you're getting 10w of output in less than ideal conditions (assuming that the panels are all feeding the charge controller rather than 1/2 of them being wired separately to each of the USB ports). Charging a phone directly from a solar panel often doesn't work well because if the phone detects a voltage or current fluctuation outside a pre-determined range, it will shut off charging. I experienced this recently with my iPhone Xs and a solar panel. Solar panels are usually better used to charge an auxiliary battery, which is then used to power devices.
Interestingly, the battery pack(s) included in the 14w and 20w panels are compatible with QC3.0 charging, which charges at higher voltages and therefore charge much more quickly. However the solar panels don't support QC3.0 output, and no QC3.0 charger is included, so unless you have one, you'll be limited to old-school 5vx2.4a charging from a wall mount USB charger. Assuming 70% efficiency, that will mean about 6-7 hours to fully charge one of these from completely empty to completely full. With the 20w solar panel, you're probably looking at >a full day to charge from completely empty unless you are in the Arizona desert in mid-summer. :-)
shard_inc
214
May 31, 2016
Who has any history with the SunJack company? I haven't heard of them, or seen them covered in the many "best portable solar panels" articles out there. Personally, I know the 21W Anker portable solar panel is up there among the best. It's a few dollars cheaper currently on Amazon, and would probably be worth looking at if you're im the market and contemplating this unit.
Link - http://www.amazon.com/Anker-2-Port-Charger-PowerPort-iPhone/dp/B012YUJJM8
Link - http://www.amazon.com/Anker-2-Port-Charger-PowerPort-iPhone/dp/B012YUJJM8
HanHyoJoo
23
May 31, 2016
shard_incI think they are used in the Military, and base on my own opinion on pics and videos I seen, their panels are very well constructed and looks more rugged than the usual Anker and similar offerings. I think if you are talking about companies who are really experts on panels, I think gomadic / Instapark looks good. Their offerings are pretty rugged too
You can consider panels from EasyAcc ( I am considering these too) http://www.amazon.com/s/ref=nb_sb_noss?url=srs%3D6807741011%26search-alias%3Dspecialty-aps&field-keywords=solar+28w , but if u look closely and compare pics, I feel they came out of the same factory as Anker and similar offerings. And again my personal opinion after reading some reviews, it would be better to charge from the panel to a battery pack, rather than to a phone directly, I ain't no electrical expert, but I feel phone charging is quirky sometimes even off wall outlets, that's why I feel sunjack insists selling their batteries with their panels I guess (but on amazon I spotted them selling their panels only finally). People with bad reviews are often those who charge directly to their devices.
. just my 2cents if I am wrong please correct me
DarrinW
32
Jun 13, 2016
shard_incI purchased the 14w version last year (June 2015) and have been happy with the results. It is used primarily on a sailboat during coastal cruises to keep GPS batteries and phones charged. I have also used it on extended backpacking trips for my GPS and camera batteries. I got in on this drop too so I could upgrade to the 20w version that will be devoted to use on the boat with a couple of extra batteries. At some point I will install traditional solar panels on the boat but I like the ease of use of the sun jack and it doesn't get in the way or require any extra attention. I just place it on the deck while we are underway and wait for the battery to charge....... easy peasy.
Anakey
69
May 28, 2016
Is there a way to offer this without the battery to then enable international users to be able to purchase just the solar pannel itself?
shard_inc
214
May 31, 2016
AnakeyGreat question. I had some similar questions about this device. You may want to see if the Anker 21w solar panel fits your needs. It's battery free, allowing you to use whichever battery you have.
HanHyoJoo
23
May 31, 2016
Anakeythere is actually on Amazon, I just saw it, it think its a much better deal to just buy the panels
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