Phone bike Charger

[Happy 2 Ride]

I have the Goal Zero Guide 10 Plus

 http://www.goalzero.com/shop/p/133/Guide-10-Plus-Battery-Pack/2:4

It works well for recharging any USB device and charges fom any USB charger.

If you buy one, make sure you get the Guide 10 PLUS. I think it has a hogher output current than the Guide 10.

[machinetwelve]

Agreed. I recently went back to using my old school garmin etrex for a gps and an old ipod for music.

Sometimes its nice to leave the gps and the music behind and just go for a ride without all the electronics. I probably do most of my rides without that stuff. It's nice to just hear the sound of gravel or dirt and not worry about how fast you're going.

[Jeff Hanson]

I would suggest ditching the idea of a on-the-bike charger and just spend $150 for a Garmin Edge 200 head unit and get much better GPS accuracy.  Or get the Edge 500 with all the bells and whistles. Those things will run 12++ hours on a charge.  Use your phone for a music player only.

Plus one on the dedicated GPS unit.  Add a speed/cadence sensor, and it will even keep your speed and distance if you lose signal in the woods.

And, if you're riding out in the woods solo, your phone will be your lifeline after a crash or other emergency.  I make sure my phone is fully charged and in a crash safe place (not on a handle bar mount).  Using it as a GPS/music player/do-it-all and draining your battery could be bad juju if you get hurt 15 miles out on a trail. 

[keithzim]

My friend has this for his iphone it look just like a case but it has a battery built in. When u charge it the battery and the case both charge then it will use the power from the case first. He said his phone last for days on one charge. Im sure they got stuff like this for more phones.

http://m.bestbuy.com/m/e/product/detail.jsp?skuId=1776227&pid=1218290445719&ev=prodView#product-overview-open

[Hop Head]

I have know problem tracking an entire day of riding or snowboarding with motionX on my IPhone 4 but I generally do not listen to music while doing so & the iPhone seems to have a much better battery than most Android devices.  Earbuds & headphones in particular draw a lot of power.  On a recent ski trip both my friend I ran motionX on our iPhone 4's but he listened to music & I didn't.  His battery would last maybe 3 hrs.  Mine went 7-8 hrs and I still had 1/3 battery left.  If your headphones have an inline volume control,  try turning it all the way up and then adjust the volume on your phone down to a lower level.  You should see a noticeable difference in battery life.

[Benflow]

I was going to say too.. the other benefit of the dedicated Garmin is the accuracy of the GPS.  ... The Garmins, which are the best in the business, still have trouble getting accurate tracking for MTBs because of the twists and turns and especially when the leaf canopy grows in.   While the Garmin is pretty accurate, the tracks I get off my iPhone are borderline awful.  Zoomed out they look pretty good, but if you overlay them in Google Earth and zoom in, you'll see the track is way off. Your speed and distance is a rough estimate at best.  I have found the iPhone to be suitable to track skiing as your path is (in general) much straighter and there is no canopy of trees (unless you're tree skiing of course).   

[fluffypanda]

root your phone