I spent a few days doing some oddball testing, including charging and discharging the battery pack out in the yard and on the hood of my car, with a couple of mp3 players, a droid phone, a usb-charging camera, a kindle and a droid tablet. Seemed to do well, lots of power.
When I got to basecamp at 7200' I pulled out the Nomad7 and did a quick refresh charge on the Guide10 in case a storm came in and I needed a few days worth of power.
I had put some 2mm nylon cord in the little loops (previous to this trip) to make this easier.
Here it is with the mountains behind in cloud - even then the charge light was on.
After the Guide10 was full I recharged my mp3 player with my audio books on it after listening to it on the plane. Wanted it full in case there was a storm and we were tent-bound for a few days.
Busy base camp on Denali.
Here it's on the tent at the camp below Kahiltna Pass at about 10,000' on Denali, charging a guide's iPod. I had a lot of positive input from a lot of climbers and guides on this trip. For one thing, I discovered that many thought it was "Goal Oh" so I fixed that ;) We hauled about 140 lb of gear each on these sleds and in backpacks. Light weight and durability are key features here.
Later, when I was brought down being sick, one of the kind volunteers asked if he could charge his iPod Classic while waiting for the plane, so I let him hook it up resting on my duffelbag.
- light, easy to travel
- worked good in the type of light here (thin clouds to blazing blue sky)
- angle not extremely important
- durable, handled packing well
- plenty of power over the week - no worries about it if I'd stayed the whole three weeks
- very reasonable price for what you get
- the thin plastic face can scratch - when it's open please be careful
- be sure the usb/charger plug is on tight and dry
- use the velcro pocket for your device/battery pack - don't let it hang by the cord
One wild thought - the Nomad7 was the perfect size to protect my Kindle in the bags/packs while traveling.