Charging mobile devices on tour

Cycle-touring, Expeditions, Adventures, Major cycle routes NOT LeJoG (see other special board)
DaveyDave
Posts: 48
Joined: 13 Jul 2008, 6:40pm

Charging mobile devices on tour

Postby DaveyDave » 29 May 2010, 9:17pm

Hi All,
I am looking at how I can charge my mobile phone whilst touring. I've found a couple of items, which seem to have very mixed reviews. I wondered whether anyone on this forum had experience which either of these in UK-like weather conditions (ie. unguaranteed sunlight).

PowerMonkey Explorer:
http://www.amazon.co.uk/Powermonkey-Exp ... 758&sr=1-1

And, the Freeloader Solar Charger
http://www.amazon.co.uk/Freeloader-SC80 ... B000ODRNDA

I guess another option might be to have some form of AA battery to USB converter to use AA batteries to charge your phone??.

Any ideas?.

Ta,
Dave

Nutsey
Posts: 1270
Joined: 19 Apr 2010, 3:31pm

Re: Charging mobile devices on tour

Postby Nutsey » 29 May 2010, 9:26pm

I'm also interested in this. New fangled internet phones only have a few days life in them, and i'm just not flinstone enough to use paper maps to know where i am. My girlfriend is already mad at me about leaving her to "play with my bike" away from her for more than 2 days, so she must phoned frequently to be informed that i'm alive, and to tell me the must-know celeb gossip etc

User avatar
rbrian
Posts: 816
Joined: 4 Mar 2009, 7:43pm
Location: Aberdeen

Re: Charging mobile devices on tour

Postby rbrian » 29 May 2010, 9:33pm

I think the best solution is charging off a hub dynamo. There are commercial products which should work well, like the dahon reecharge for around £100. This has been discussed recently, I can't remember who it was, maybe here, maybe on another forum, built one with bits from Maplin for about £5.
Cynic? No, an optimist tempered by experience.

User avatar
ConRAD
Posts: 547
Joined: 20 May 2010, 10:55am

Re: Charging mobile devices on tour

Postby ConRAD » 29 May 2010, 10:49pm

rbrian wrote:... dahon reecharge for around £100 .....

I' not so sure that dahon is already available :shock:
However, in the meantime, I've adopted the below solution ... perhaps someone might be interested !!!

SYSTEM COMPOSITION:
  • Hub Dynamo: SON20R
  • Headlight: SON Edelux (nominal 2.4W)
  • Taillight: B&M D-Toplight XS-Plus (nominal 0.6W)
  • Converter: B&M E-Werk
  • GPS: Garmin 60CSx (nominal 0.5W)
  • Rims: 28"
Everything tested and working at the same time, WITH NO BATTERIES, at... slightly over 14 km/h :idea: :idea: :idea:
Last edited by ConRAD on 30 May 2010, 6:41pm, edited 1 time in total.
Image

sbseven
Posts: 70
Joined: 21 Jan 2010, 12:51am

Re: Charging mobile devices on tour

Postby sbseven » 29 May 2010, 10:52pm

It may depend how long you're going to be away from an electricity socket...

If you're not going to have access to electricity for more than a week, I agree that the dynamo charging option is a good option. Another couple of commerical products are the PedalPower+ Universal Cable and the Busch & Muller E-Werk. A DIY option can be found here: http://yacf.co.uk/forum/index.php?topic ... #msg118648

You may get a solar option to work in a sunny climate, but as you've already read, you'll probably get mixed results elsewhere.

If you're only away from an electricity socket for a few days then a high capacity Lithum Ion battery is a good bet. Something like the 6400mAh U2O iWalk will charge a phone several times over.

Or just use a cheap and simple AA cell emergency phone charger if it's just for the odd phone top-up.

Shaun

User avatar
Cunobelin
Posts: 8864
Joined: 6 Feb 2007, 7:22pm

Re: Charging mobile devices on tour

Postby Cunobelin » 30 May 2010, 8:49am

I use a "MIni Gorilla" from the Power Monkey stable.

This with a four way hub eliminates all my other chargers (and the mains pack for the Netbook).

go4it
Posts: 46
Joined: 15 Jul 2009, 9:58pm

Re: Charging mobile devices on tour

Postby go4it » 30 May 2010, 4:05pm

You can pick up a FreeLoader at Halfords for a Tenner! Just got one , not got around to using Yet

User avatar
frank9755
Posts: 872
Joined: 11 Oct 2008, 10:38am
Location: London

Re: Charging mobile devices on tour

Postby frank9755 » 30 May 2010, 6:00pm

I use the Power Monkey.

It works pretty well. The solar charging is more aspirational than practical in my view. I try to plug it in when I am in a cafe, or even in the shower block in a campsite. If you can get half an hour it seems to give it a big boost.

Main advantage is that I don't have to carry other chargers.

User avatar
ConRAD
Posts: 547
Joined: 20 May 2010, 10:55am

Re: Charging mobile devices on tour

Postby ConRAD » 30 May 2010, 7:00pm

rbrian wrote:I think the best solution is charging off a hub dynamo. There are commercial products which should work well, like the dahon reecharge for around £100. This has been discussed recently, I can't remember who it was, maybe here, maybe on another forum, built one with bits from Maplin for about £5.

Most hub dynamos are not voltage limited, that's meaning you might have as much as 50Vac !!!
Item K18231A Power Supply sold by Maplin is rated as Input voltage 28Vac max.
Image

User avatar
matt2matt2002
Posts: 865
Joined: 25 Oct 2009, 7:45pm
Location: Aberdeen Scotland UK

Re: Charging mobile devices on tour

Postby matt2matt2002 » 30 May 2010, 7:42pm

Isn't there a wind up something?

I have a wind up radio and a few turns gets it going for 15+ mins.
I would have thought that some bright spark would have invented a hand held wind up charger.

Any thoughts?
2014 Scottish End2End 1 month
2015 Pamir Highway Tajikistan & Kyrgyzstan for 2 months
2016 Sri Lanka for 1 month.
2017 Herbrides Lewis Harris 2 weeks
2018 Ethiopia.5 weeks.
2018 Marrakech 2 weeks.
On a Thorn Raven/Rohloff hub.

DaveyDave
Posts: 48
Joined: 13 Jul 2008, 6:40pm

Re: Charging mobile devices on tour

Postby DaveyDave » 30 May 2010, 8:21pm

Last edited by DaveyDave on 30 May 2010, 9:11pm, edited 1 time in total.

User avatar
ConRAD
Posts: 547
Joined: 20 May 2010, 10:55am

Re: Charging mobile devices on tour

Postby ConRAD » 30 May 2010, 8:24pm

matt2matt2002 wrote:.... isn't there a wind up something?

... you're right, it's plenty of Cranking Dynamo Emergency Charger today :mrgreen:
Image

User avatar
rbrian
Posts: 816
Joined: 4 Mar 2009, 7:43pm
Location: Aberdeen

Re: Charging mobile devices on tour

Postby rbrian » 30 May 2010, 9:46pm

ConRAD wrote:
rbrian wrote:I think the best solution is charging off a hub dynamo. There are commercial products which should work well, like the dahon reecharge for around £100. This has been discussed recently, I can't remember who it was, maybe here, maybe on another forum, built one with bits from Maplin for about £5.

Most hub dynamos are not voltage limited, that's meaning you might have as much as 50Vac !!!
Item K18231A Power Supply sold by Maplin is rated as Input voltage 28Vac max.


Indeed. That's why the dahon reecharge (I haven't looked into any others as yet) uses the dynamo to charge a battery, which then charges your gadget at a steady 5v. I'm not an electrical engineer, and my eyes glazed when the discussion I've alluded to got technical, but I'm pretty sure someone said they'd done it. What better evidence can you get than misremembered hearsay?
Cynic? No, an optimist tempered by experience.

User avatar
ConRAD
Posts: 547
Joined: 20 May 2010, 10:55am

Re: Charging mobile devices on tour

Postby ConRAD » 31 May 2010, 6:06pm

rbrian wrote:... but I'm pretty sure someone said they'd done it. What better evidence can you get than misremembered hearsay?

.. I didn't want to doubt about what you said, I just wanted to warn that sometimes certain on-line devices might not be totally suitable.
That's it.
Image

gbnz
Posts: 1365
Joined: 13 Sep 2008, 10:38am

Re: Charging mobile devices on tour

Postby gbnz » 31 May 2010, 9:16pm

DaveyDave wrote:And, the Freeloader Solar Charger


The Freeloader is useful as USB chargeable battery. As a solar charger it's dire (I used it for twelve months, six months in bright blue, sub tropical skies)