Search
Notices
Electronics, Lighting, & Gadgets HRM, GPS, MP3, HID. Whether it's got an acronym or not, here's where you'll find discussions on all sorts of tools, toys and gadgets.

Solar charger

Thread Tools
 
Search this Thread
 
Old 07-05-17 | 04:37 PM
  #1  
Thread Starter
Junior Member
 
Joined: Jun 2017
Posts: 15
Likes: 0
Solar charger

I am interested in a small solar charger, that mounts to the handlebars.
It will be used for charging phone/ipod or other small electronic devices.

Thanks!
lbrown13 is offline  
Reply
Old 07-09-17 | 02:06 PM
  #2  
Senior Member
20 Anniversary
 
Joined: Oct 2005
Posts: 1,191
Likes: 150
https://www.voltaicsystems.com/solar...icycle-touring
BikeLite is offline  
Reply
Old 07-09-17 | 06:15 PM
  #3  
Senior Member
15 Anniversary
 
Joined: Jul 2008
Posts: 6,431
Likes: 44
From: Minneapolis, MN
I don't think there's anything solar that's small enough to fit on the handlebars that would provide anywhere near enough juice to charge a modern phone.

If you're just out riding for the day, the best solution is an external battery with a usb port. They sell a bazillion of them on amazon that provide enough power to ride all day.

For touring where you don't have electric, a hub dynamo is the most likely to work well and consistently. They also sell larger solar panels that you can put on the back of your bike that I've heard of working.
PaulRivers is offline  
Reply
Old 07-09-17 | 06:32 PM
  #4  
Senior Member
10 Anniversary
 
Joined: Jun 2015
Posts: 1,936
Likes: 1,155
From: Down Under

Bikes: A steel framed 26" off road tourer from a manufacturer who thinks they are cool. Giant Anthem. Trek 720 Multiroad pub bike. 10 kids bikes all under 20". Assorted waifs and unfinished projects.

I've never met anyone touring who has successfully used solar to keep up with modern smart phones, they generally tend to use it to delay the inevitable, they still need to plug in sometimes (not saying you can't do it, just that I haven't met them). In order to get enough charge the panels need to be quite large as the robust panels are generally amorphous silicon, which is much less efficient. Then there is the security risk, solar panels are pretty attractive to thieves.
Hub dynamos will keep up with a smart phone in conjunction with something like a Forumslader that maximises output, for most touring but will struggle if the phone is doing something high drain, like being a WiFi hotspot.
Trevtassie is offline  
Reply
Old 07-17-17 | 07:46 AM
  #5  
Senior Member
 
Joined: Jul 2013
Posts: 3,498
Likes: 646
From: Toronto

Bikes: Sekine 1979 ten speed racer

I'm intrigued with solar chargers either for camping, travelling or cycling. But realistically, they are impractical. They are heavy so for camping it's better to carry spare dry cells and battery packs- how long are you gone for anyways? For travelling, you'll find and electrical outlet in your hotel room.
If you leave your solar panel out unattended, it'll get stolen.

For cycling, carry spares or get to a coffee shop.
Daniel4 is offline  
Reply
Old 07-17-17 | 08:14 PM
  #6  
Senior Member
 
Joined: Dec 2005
Posts: 3,249
Likes: 0
From: Reisterstown, MD
I haven't used it for cycling, at least yet but I have had success camping. The last two years I used a goal zero Venture 30 and nomad solar panel at my sons Cub scout camp Venture 30 Solar Recharging Kit | | Goal Zero

4 days total. I made it without needing to plug in. I kept the panel clipped to my daypack. Granted this isn't like hiking, as the scouts had lots of activity stations throughout the day, so it would be easy to leave my pack in the sun while these sessions were running. I would imagine on the back of the bike it would get pretty good sun as well. The venture 30 can charge my iphone about 2.5 times and it recharged in about a day of good sun. 2 years in a row I never had to plug my phone into an outlet to charge.
derath is offline  
Reply
Old 07-18-17 | 03:32 AM
  #7  
Tokwan's Avatar
Senior Member
 
Joined: Feb 2015
Posts: 265
Likes: 0
From: Penang, Malaysia

Bikes: Giant/HARO/ Exitway

i am looking for an alternative solution to charge my phone when i go bike camping too.
Tokwan is offline  
Reply
Old 09-06-17 | 01:21 PM
  #8  
Junior Member
 
Joined: Jun 2017
Posts: 15
Likes: 0
was wondering if you found any solar panels that worked for your handlebars?
Danballa is offline  
Reply
Old 09-06-17 | 01:34 PM
  #9  
Skipjacks's Avatar
Senior Member
 
Joined: Aug 2017
Posts: 2,114
Likes: 239
From: Mid Atlantic / USA

Bikes: 2017 Specialized Crosstrail / 2013 Trek Crossrip Elite

Originally Posted by Danballa
was wondering if you found any solar panels that worked for your handlebars?
There are none that will fit on handlebars and charge a phone.

I have a 3 panel solar charger that's about 7 inches by 10 inches per panel. So it's fairly big when unfolded.

If I leave it in the direct sun at high noon with clear line of sight to the sun, it will charge a modern smart phone at the rate of about 1% per every 5 minutes. That's the peak efficiency, the best it works.

It's too big to mount to a bike. And even if I could mount it, it won't stay aimed directly at the sun as I ride, lowering it's efficiency even more.

Anything that will mount to the handlebars isn't going to be strong enough to actually do much.

I've yet to find a practical use for the panel I have.
Skipjacks is offline  
Reply
Old 09-06-17 | 01:52 PM
  #10  
Senior Member
 
Joined: Sep 2016
Posts: 100
Likes: 3
Originally Posted by Skipjacks
There are none that will fit on handlebars and charge a phone.

I have a 3 panel solar charger that's about 7 inches by 10 inches per panel. So it's fairly big when unfolded.

If I leave it in the direct sun at high noon with clear line of sight to the sun, it will charge a modern smart phone at the rate of about 1% per every 5 minutes. That's the peak efficiency, the best it works.

It's too big to mount to a bike. And even if I could mount it, it won't stay aimed directly at the sun as I ride, lowering it's efficiency even more.

Anything that will mount to the handlebars isn't going to be strong enough to actually do much.

I've yet to find a practical use for the panel I have.
I'm curious about a large panel that could be put on something like a cargobob trailer. it could be 16"wide and upto 36" long. Might be able to mount 60Watt on that. i've also thought about having a trailer wheel that runs a smaller gear via chain to run a generator at higher rpm and get more electricty. drag would be higher but might not be noticeable, especially if its disabled up hill.
preferdownhill is offline  
Reply
Old 09-06-17 | 06:39 PM
  #11  
adamrice's Avatar
Senior Member
15 Anniversary
 
Joined: Oct 2009
Posts: 957
Likes: 205
From: Austin TX USA

Bikes: Bob Jackson 853 Arrowhead; Felt VR30; Kinesis UK RTD; Hujsak tandem

I did tour with a small fold-up solar charger (sort of like this—I don't think the exact model is in production anymore) that mostly served to "delay the inevitable" as Trevtassie put it, although that was good enough for my purposes. I had this lashed across my panniers in back.

These days, good high-capacity USB batteries are common and inexpensive, so there's not as much need, as long as you can camp near an outlet every so often.
adamrice is offline  
Reply
Old 09-07-17 | 08:34 AM
  #12  
Banned
 
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast

Bikes: 8

Size matters in solar panels , or it will have little current output.

bring your mains plug in charger to lunch..
fietsbob is offline  
Reply
Old 09-07-17 | 08:56 AM
  #13  
Senior Member
 
Joined: Sep 2016
Posts: 100
Likes: 3
Originally Posted by fietsbob
Size matters in solar panels , or it will have little current output.

bring your mains plug in charger to lunch..

here's a 40watt that looks pretty good price/performance for touring, its about 4sq ft.
https://www.amazon.com/KINGSOLAR-Hig...+panel+folding

some of the 20watt ones look useful too for trickle charging.
preferdownhill is offline  
Reply
Old 09-07-17 | 09:32 AM
  #14  
noglider's Avatar
aka Tom Reingold
Titanium Club Membership
15 Anniversary
Community Builder
Community Influencer
 
Joined: Jan 2009
Posts: 44,167
Likes: 6,386
From: New York, NY, and High Falls, NY, USA

Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem

Originally Posted by preferdownhill
here's a 40watt that looks pretty good price/performance for touring, its about 4sq ft.
https://www.amazon.com/KINGSOLAR-Hig...+panel+folding

some of the 20watt ones look useful too for trickle charging.
That's $126 at the moment. I agree with those who say bring a battery or two. They're a lot less expensive and easier to deal with. I'm not away from power outlets for 24 hours very often. The Anker E1 costs about $17 and can charge my phone two or three times.
__________________
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog

“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author

Please email me rather than PM'ing me. Thanks.
noglider is offline  
Reply
Old 09-07-17 | 09:50 AM
  #15  
Senior Member
 
Joined: Sep 2016
Posts: 100
Likes: 3
Originally Posted by noglider
That's $126 at the moment. I agree with those who say bring a battery or two. They're a lot less expensive and easier to deal with. I'm not away from power outlets for 24 hours very often. The Anker E1 costs about $17 and can charge my phone two or three times.
how many mAh is that and how long does it take to recharge?
preferdownhill is offline  
Reply
Old 09-07-17 | 10:14 AM
  #16  
noglider's Avatar
aka Tom Reingold
Titanium Club Membership
15 Anniversary
Community Builder
Community Influencer
 
Joined: Jan 2009
Posts: 44,167
Likes: 6,386
From: New York, NY, and High Falls, NY, USA

Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem

Originally Posted by preferdownhill
how many mAh is that and how long does it take to recharge?
I think the one I have is rated at 5,200 mAh, and they now have it available in 6,700. It takes about five hours to charge.
__________________
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog

“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author

Please email me rather than PM'ing me. Thanks.
noglider is offline  
Reply
Old 09-07-17 | 01:15 PM
  #17  
Junior Member
 
Joined: Apr 2015
Posts: 4
Likes: 0
I hear the 20 watt foldable by anker is pretty good.
mofo84 is offline  
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Harhir
Electronics, Lighting, & Gadgets
17
02-07-18 03:06 PM
Buffalo Buff
Electronics, Lighting, & Gadgets
2
01-26-15 05:22 PM
woodysroad
Touring
9
04-22-13 02:07 AM
tate65
Touring
12
12-25-11 08:49 AM
dwightonabike
Touring
14
12-11-09 11:33 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.