31504Re: Charging camera batteries at Resupply points? - & communications devices...?
- Jun 13, 2013I've had problems trying to charge devices directly from a solar panel while on the trail. The variations in current caused by shady conditions have caused software issues with several devices. I always charge from the battery pack with the panel unplugged. When I have a group with a lot of devices also carry a second battery pack.
--- In firstname.lastname@example.org, "john_friend" <yahoo@...> wrote:
> I've been figuring 100 pics a day for myself with my Fuji X-E1 which
> should go 3 days on a battery if I'm careful not to be looking through
> them a lot on the camera LCD. I take fewer pictures on long hard days
> and I'm really tired and more when we have more time to mess around. I
> haven't actually done this long a hike before so the 100/day is just a
> guess, but it's what I've averaged on three shorter trips in the last
> few summers so that's where my guess comes from.
> The solar chargers I was considering are the Nomad 7
> <http://www.goalzero.com/shop/p/11/Nomad-7-Solar-Panel/3:4/> by
> GoalZero and the Sundance Solar
> <http://store.sundancesolar.com/sochforliion.html> . For your multiple
> gadgets, if you could charge them via USB, it would probably work well
> to charge the GoalZero power pack from the solar charger during the day
> and then charge a few gadgets from the power pack in the evening/night.
> For battery chargers, I got a charger from Wasabi Power
> ie=UTF8&psc=1> for my Fuji X-E1 that has both 110V and 12V input. I
> figured I could use the 12V output from the solar panel with the 12V
> input of the Wasabi charger. Wasabi makes chargers for many different
> types of batteries. But, if you have multiple types of batteries to
> charge, that could get impractical to have so many separate 12V
> If you can't charge via USB from the GoalZero powerpack, then you
> probably are just better off taking multiple batteries. You can put
> charged spares in resupply packages and you can even ship the used ones
> back home from most of the resupply points to keep the weight carrying
> of dead batteries to a minimum.
> I think I'm quickly coming to the conclusion that I should buy a bunch
> of spare batteries and put them in resupply packages (one in Tuolumne,
> two in Red's Meadow and three in MTR) and plan on carrying 1-2
> additional at all time for the uncertainty (so I'd be carrying 2-5
> batteries depending upon the segment). I can probably include a small
> flat rate USPS box in each resupply in order to send the used batteries
> home (just to save a little weight and not have to throw them away).
> For an extra fee of $10, you can even send out a package from MTR.
> Tuolumne has a post office that we're picking up our resupply from so
> we can send out extra from there easily enough. I don't know for sure
> about Red's Meadow, but it seems likely you can find a place to mail a
> package close by or perhaps they will do it from you from Red's Meadow
> for a small fee.
> I understand the wilderness ethic question about electronic devices.
> I'm not personally even bringing my cell phone, but I do love to take
> pictures and this should be one of the better picture taking adventures.
> I also like to put together a photo journal at the end of the trip to
> share with family. I did something like that after doing Mt. Whitney
> and Half Dome and I enjoyed putting it together and my family loved it.
> So, it seems worth it to me to figure out how to keep the camera
> powered. We're also bringing an emergency device (probably the SPOT 2)
> to both let friends/family know we're OK and in case of emergency, but I
> don't think this will need to be charged as long as we don't use it in
> track/broadcast mode.
> Your Bushnell Mini Solar Roll
> 887_pmd_google_pla> looks pretty small to do much serious charging to
> you should make sure it will really produce the capacity you want.
> Remember, if you're trying to charge on the go while hiking, you will
> both be in the trees/shade part of the time and probably not have the
> solar panel at the ideal angle most of the time.
> The PowerMonkey
> olar-battery-charger> looks pretty convenient, but also looks like it
> has pretty small solar panel. I think you'll want something larger than
> that unless you're just charging a single device and slowly doing it
> every day.
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