There are many situations a smartphone is perfect for: entertainment on public transport, music while walking, constant email updates and even a quick gaming session in a particularity slow lecture (not that I’d do that of cause). One thing it’s probably not designed for in camping.
The first consideration when taking my smartphone of choice (the HTC Desire) camping was how to keep it going for the whole 4 nights. With a normal phone this would be no problem at all. You might have to dim the screen and use it a bit less for texting but most features phones will last no problem. Only at a push though can you make a phone like the Desire last around 2 days.
I went through the process of making sure I used as little power as possible. I turned off anything that wasn’t needed including WiFi (obviously, I was in a field anyway), GPS (sometimes turned on when out and about to find where we’d got lost at this time) and dimming the screen to the lowest setting. I also made sure to turn of syncing (no email/facebook/twitter sync at all) and tried to minimise the number of running services using a task killer (yes I know, this is bad). Overall this might give me a day and a half under low usage. At this point cell standby was the single biggest batter drain, so at night I turned the phone to airplane mode. I didn’t turn it off completely because I don’t own a watch (and don’t really wish to) so my phone is the only way I tell the time in the morning.
This might have given me just enough power to keep the phone going for the full 4 night, however I came up with a better plan.
I brought a cheap car kit from Mobile Fun. It cost me less than £20 and included a very nice and extremely adjustable holder which is now a permanent fixture in my car. It also, crucially, had a car charger which plugs into the cigarette lighter and at the other end just plugs straight in the phone. You can get other car chargers which instead of having the wire to the phone permanently fixed just have a USB socket to change any gadget you can think of. For me though, the cheap one in the car kit worked fine.
Will this I could then use the phone pretty much as normal, just with all the settings set of minimal power. With a fully functioning smartphone I used it as a satnav system, found local restaurants and attractions, found directions and prices to park and rides in Bath and Bristol and use it as a camera.
To me a smartphone is a great tool while camping, however battery life is a major issue. Hopefully we get phones that can last 4 days (or maybe even a week) soon. As power requirements go down and battery technology improves it can only get better.