battery charger
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Brian Kelly
(Brik9876)
battery charger on 04/15/2013 20:13:33 MDT Print View

So I just bought my wife a ipad mini to read with on our trips. I figured since we will be bringing it anyways i will also use it as a gps back up if for some reason we get lost. Not to get off track but are there people who just use there phones or ipads as gps device? Well my question is what do you all use to charge your device? Most of the places i will be backpacking with her is heavily wooded so im not sure a solar charger will work unless you guys know of one that works very well in heavily wooded areas?

Bob Gross
(--B.G.--) - F

Locale: Silicon Valley
Re: battery charger on 04/15/2013 20:27:09 MDT Print View

If solar panels are not practical, then use a "brick" battery. These are either rechargeable lithium batteries or else lithium primary batteries. You get one that is big enough that it will support recharging of the iPad for X number of times for one trip.

--B.G.--

Brian Kelly
(Brik9876)
Re: Re: battery charger on 04/15/2013 20:45:47 MDT Print View

Bob Do you have experience with one you can recommend? i figure when she goes we will be gone at most 4-5days but usually 3 days 2 nights

Mark Verber
(verber) - MLife

Locale: San Francisco Bay Area
Re: Re: battery charger on 04/15/2013 20:49:29 MDT Print View

Three options: First option is power off device when not using and conserve the batteries so they last until the next town. This is what I typically do for my iPhone. Second option as BG noted are the brick lithium supplemental batteries. They recharge via USB. They come in a wide variety of weights / capacities. The final option are devices that hold AA batteries and offer USB power out. You can use disposal batteries or rechargeable. Some models use two AA, some uses 4 AA. I have been using a 4 AA system (with solar charger) from Goal Zero.

--Mark

Brian Kelly
(Brik9876)
Re: Re: Re: battery charger on 04/15/2013 20:52:42 MDT Print View

thanks guys for the replies everyone on this forum is so helpful. Ill look at goal zero now.

K P
(Schado6) - MLife
Another Option on 04/15/2013 20:53:55 MDT Print View

Ran across this the other day. Have not tried it but peaked my interest and bookmarked it:

http://www.thepowerpot.com/about-the-powerpot

Bob Gross
(--B.G.--) - F

Locale: Silicon Valley
Re: Re: Re: battery charger on 04/15/2013 20:54:52 MDT Print View

Geez, first you have to figure out what your device load will be. You have to figure the load wattage, and how many hours per day, how many days, etc. If you don't have those numbers, then stop right there. Lots of batteries like this are sold on Amazon.com

Thirty years ago the problem was that I was carrying some film camera equipment up to Mount Everest Base Camp in Nepal. I knew that I would find no electricity except for what I could carry in batteries. Back then, I used a large gel cell lead-acid battery that was about the size of a building brick, and I had only two sets of batteries for the primary camera. So, each few days I swapped sets between the camera and the brick.

--B.G.--

Nick Gatel
(ngatel) - MLife

Locale: Southern California
Re: battery charger on 04/15/2013 20:55:10 MDT Print View

"...unless you guys know of one that works very well in heavily wooded areas?"

Right :)

The battery capacity of the mini ipad is 4490 mAh, more than 3 times that of an iPhone 4. Going to need a big brick to recharge it just once.

IMO, this kind of a device is not practical for the lightweight backpacker, if it needs to be recharged in the wilderness (this is BPL).

For some thoughts, you might find this article I wrote interesting. Solar for Backpacking?. It has some info on recharging using a battery pack. Not a technical piece, and BG will probably find errors in it:)

Nathan Watts
(7sport) - MLife
Re: Re: Re: battery charger on 04/15/2013 20:56:17 MDT Print View

I sometimes bring a Mophie 4000 mAh battery brick with me. It has USB output so it can charge many of my electronic devices (phone, watch, steripen, headlamp, camera)

Bob Gross
(--B.G.--) - F

Locale: Silicon Valley
Re: Re: Re: battery charger on 04/15/2013 20:59:43 MDT Print View

"Goal Zero"

Strangely enough, I just purchased my first Goal Zero solar panel on Friday. It is only for portable use. I have a 75-watt panel up on the south side of the house. Nick and some of us have learned to appreciate solar energy. However, there are still many places to go where solar isn't practical.

More importantly, you should not need to be burning battery power for every modern device known to man. I thought a backpack trip was good for getting away from the trappings of civilization.

--B.G.--

Brian Kelly
(Brik9876)
Re: Re: Re: Re: battery charger on 04/15/2013 21:16:42 MDT Print View

Bg i agree with you but this is only for when my wife goes. Now she isnt into the out doors as much as me and isnt it better to get someone involved more into the outdoors such as backpacking even though at night she will use an ipad as a e reader better than her sitting at home watching tv or on comp? This is probably all my fault for not being more specific. I actually got a degree in electrical engineering from the university of pittsburgh( i know not the best school but not the worst) my point was to find a companies that were trust worthy or good quality etc etc in this area. I pointed out about the heavily wooded area bc i know when i bring her the solar panels are not the most reliable.

Brian Kelly
(Brik9876)
Re: Re: Re: Re: Re: battery charger on 04/15/2013 21:19:38 MDT Print View

i alos found the device load comment kind of funny for the ipod and since i was having a bad day thanks for that it made me laugh

Nick Gatel
(ngatel) - MLife

Locale: Southern California
Re: Re: Re: Re: Re: battery charger on 04/15/2013 21:24:53 MDT Print View

" isnt it better to get someone involved more into the outdoors such as backpacking even though at night she will use an ipad as a e reader better than her sitting at home watching tv or on comp?"

My wife will not go backpacking -- refuses to sleep on the ground, and I haven't tried to get her involved. That being said, our tent trailer has 250 Watts of solar, so we could power all kinds of electrical conveniences; but we don't.

Think about it... Alone in the wilderness with just your wife. I am SURE you could find something much more fun to do with your wife than an iPad.

Hint, hint; wink, wink :-)

Brian Kelly
(Brik9876)
Re: Re: Re: Re: Re: Re: battery charger on 04/15/2013 21:27:41 MDT Print View

lol nick
You bring up a very good point haha. I think i like the way you think but i have to "sell" it to her and this is the selling point.

Nick Gatel
(ngatel) - MLife

Locale: Southern California
Re: Re: Re: Re: Re: Re: Re: battery charger on 04/15/2013 21:35:00 MDT Print View

Okay,

Bring it to let her read. But it is her's, so you can't use it. If she reads a couple hours per day it will probably last 4 or 5 days. GPS use will probably use a lot of juice. Also, is it cellular equipped? Need that function for GPS (I think).

Brian Kelly
(Brik9876)
Re: Re: Re: Re: Re: Re: Re: Re: battery charger on 04/15/2013 21:44:24 MDT Print View

yeah it is cellular and you are right the gps is part of the 3/4g chipset.

Mike W
(rcmike) - MLife

Locale: California
Iphone and charging on 04/15/2013 22:48:02 MDT Print View

I just took my iPhone on a 5 day trip through the Grand Canyon. Because I really wanted to test out the capabilities of solar, I used a Goal Zero Nomad 7 solar panel and Guide 10 charger. I'd use the phone during the day for photos (several apps including camera, panorama, and video), topo maps with GPS, some reading and occasionally, some music or a video while going to sleep to drown out the river noise or wind. I conserved battery by enabling the SIM PIN. By locking the SIM, it prevents the phone from searching for a cell network but still let's me use the GPS. I would still turn airplane mode back on when done to make sure GPS wasn't running in the background unnecessarily. During the day, the solar panel would charge the Guide 10 battery pack in 2-4 hours (southwest desert sun is awesome) while it was on my pack. I would charge my phone from the Guide 10 at night when going to sleep. Because the Guide 10 charges AA and AAA batteries, I also have the ability of dropping in a charged cell for my headlamp or anything else I might have. I considered buying a lighter rechargeable battery pack that could charge my phone 2-3 times but I already had the solar solution with essentially unlimited power.

Nick Gatel
(ngatel) - MLife

Locale: Southern California
Re: Iphone and charging on 04/15/2013 22:54:34 MDT Print View

An... But most people don't regularly hike in the desert,

Nelson Sherry
(nsherry61)

Locale: Mid-Willamette Valley
Re: Re: Re: Re: Re: Re: Re: battery charger on 04/15/2013 23:20:51 MDT Print View

Sell it to her with the ipad, but make sure she's got her copy of 50 Shades on the ipad to read.

Brian Kelly
(Brik9876)
Re: Re: Re: Re: Re: Re: Re: Re: battery charger on 04/16/2013 06:42:51 MDT Print View

lol good idea.