Instruction: Answer the given question using the supporting document.

Input:
Question: Can this be used while camping? Or does it need a power outlet?
Document: When the power is out and you need fresh batteries, this unit may save the day for you. I have used it to recharge aaa, aa, and D cells and it works as it is claimed to work.I will order 1 more so I always have good batteries on hand before Hurricane season here in Florida.
Obvious not practical for household use. You will find this best suited for camping, or in an emergency kit. In the event of a natural disaster where your power is out, this can come in quite handy.Here is the basic information we all need to know:Battery Size  NiMH Battery Capacity  Approx. Charging Time*AAA  180mAh  2-3 Hours850mAh  6-12 HoursAA  500mAh  4-7 Hours2200mAh  15-31 HoursC  1000mAh  7-14 Hours4500mAh  31-62 HoursD  1500mAh  11-21 Hours10000mAh  69-138 Hours*Charging times will vary depending upon the brand, capacity and condition of batteries being charged as well as the amount of sunlight provided to the solar panel.So for those of you using something like8 pcs of Premium Tenergy D Size 10,000mAh High Capacity High Rate NiMH Rechargeable Batteriesto power a bright flashlisht at night, you will need to charge these for over 2 weeks to get a full charge that will last you for 1 night.
I have a bunch of high capacity battery packs and direct-charge solar panels; though pricier they do perform a lot better which makes them practical for emergency use in charging things like cell phones and lights. This unit I would say is more for everyday charging, possibly if you're going on a long camping trip and have a lot of battery powered flashlights. However, the sheer amount of time it takes to charge quantities of batteries means you'll probably need several units to do this in timely or practical fashion.Still, for the price I can't fault it too much- it does work and the build quality is sound.
Just what I was looking for... gonna get more!!! This thing is great for camping and power outages... I Love it
I bought this for my son because we keep having blackouts and are without power for days, he has used it and said it works great.
Good item to have in hurricane territory...can be used anytime during daylight...if it's cloudy it just takes longer to charge...but if the power is out and you're in the dark at night, it's a godsend...
put in batteries, placed in sunny spot as directed, in a few hours I had fully charged batteries that lasted a long time...the charger worked like it was promised to and I am very pleased with it as a result. I would recommend this for anyone that does a lot of back country camping for a great source of battery power.
This charger is great for power outage, camping or an emergency. Since it is better to charge 2 batteries at a time to ensure high strength, you should have the plug in type for everyday use. Once I found the right area to tilt and rotate to follow the sun, the power would always point to the red or highest power which was enough to use with my power hungry camera and water pic. This is good to have for back up usage.
The voltage from the solar panel isn't high enough. If you want to charge a 9V battery, the product you need isAA and 9 volt battery charger with 3, 6, 9, and 12 volt power supplyThe only thing the Crane charger's dial really indicates is current. The time shown on the dial is an estimate based on the assumption that the battery was drained until its pole potential difference was about one volt. It isn't the amount of time remaining. You still have to check the batteries from time to time with a voltmeter, until they're just over 1.4 volts each when you measure them with a voltmeter 30 minutes after taking them out of the charger.
On a recent warm (~50F) winter day, I charged a pair of AA's that I use in mySanyo Eneloop Battery Stick Booster for Iphone, Xperia Sanyo KBC-D1BSto keep my phone charged. I put the unit on my back porch, with a pencil to prop up the top so as to get a better angle of sunlight. This caused the needle on the charger to go from 2/3 to maxed out.I've since used this charger nearly every day, though on the overcast days like today, I skip using the charger because although it still charges, it's at a fraction of the normal rate.I'm very glad I bought this charger, as now I at least have battery power in an emergency, and at a great price.
Answer: I do not think it has an electrical cord but I could be wrong. I am moving and it is packed. However I charged all my rechargeable batteries before packing. I just set it out in the sun and the batteries were fully charged is a couple of hours. I do live in New Mexico where the sun is very intense. Solar anything works great here!