- Size (LWH): 3.25 inches, 5.5 inches, 1.4 inches
- Weight: 4.16 ounces
PowerFilm AA Foldable Solar Charger
|Price:||$88.49 & FREE Shipping. Details|
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- Eco-friendly solar powered battery charger
- Charges 2 or 4 AA batteries
- Folds up compactly to fit into a pocket
- Weighs less than 4 AA batteries
- Durable and convenient
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Top Customer Reviews
The whole thing folds up into a package slightly larger than the 4 cell battery compartment. It weighs about as much as the batteries. With 4 x AA batteries installed it weighs about 8 ounces. It has arrangements for hanging it from a pack by lanyards, so you can charge on the go while you hike. This, combined with the light weight and small size make it an ideal source of electricity for back country backpacking.
Be aware that it only charges AA batteries. You can't plug in your laptop or your blackberry...or even AAA batteries, so plan accordingly. Mine charges AA batteries very quickly. They say that 4 hours of fairly bright sunlight will fully charge 2 AA batteries and 8 hours is supposed to charge 4 AA fully. Since I don't ever run my batteries down that low, I can't vouch for these times, but it will top off a partially drained battery in about an hour. Even on a cloudy day, it can top off 2 batteries in less than 2 hours. That is comparable to any AC charger I have ever used.
It uses a thin film photovoltaic array, so it's flexible. This is both good and bad. The thin film is much cheaper, less prone to crush damage and folds up smaller, but it's probably only good for about 5 years use, roughly 1/4 of the life span of more expensive cells. This time limit only applies to the time actually spent in the sun.Read more ›
I used this charger on Oct. 24 on a sunny day in central Illinois, on a pair of partially discharged NiMh 2400 maH batteries that read 1.2 volts. The charger brought them up to 1.36 volts quickly and showed them as fully charged. Impressed, I decided to purposely discharge a pair of AAs by running them in an incandescent flashlight. One battery read 0 volts and the other was at 1.0 volts and the filament of the bulb was just barely showing a red glow when I put them in the charger. The charger accurately diagnosed them as very low and started recharging them in a trickle mode. One trip to Walmart later, (1-2 hours total charge time) and both batteries were right at 1.36 V. I also ran a separate 4-pack of partially discharged batteries and they were charged fully in 1 hour.
Based on this small experience sample, I am very happy with this product, as it surpassed the charging times on the box on a sunny day, even in late fall, with the sun very low in the sky at mid-day.
I also feel the build quality of the product is high, based on first impressions only.
This charger is also very small, folding up into a box smaller and thinner than I expected. It also comes with a 4-pack of the excellent low-discharge Sanyo Eneloop batteries, which are a $8-10 dollar value.
It also has grommets to make it easy to use string or cord to affix it to a backpack or tie it down in windy conditions. I am planning on making a set of copper wire supports that can be used like tent stakes to hold this charger in place on flat ground or to prop it up to get true perpendicularity to the sun to maximize the energy capture.
In summary, I love this charger and highly recommend it.
I was hopeful for this solar charger would be able to charge AA batteries. On the positive side, this charger did appear to have some ability to charge certain AA batteries with a significant charge. The panels and nylon material appear well made. Overall, this is a very lightweight and compact set up. In addition, there are two red LED lights that indicate a full-charge with a constant on, charging with a single blink, and indicates an empty charger or low battery with a quick two-blink sequence.
Unfortunately, the charger did not work with a lot of my Sanyo Eneloop LSD, Energizer NiMH, and Duracell NiMH. I tried troubleshooting by using both newer and older batteries, charging two batteries at a time versus four at a time, using the three different brands mentioned, using the solar charger during peak hours in direct sun and also indirect sunlight, charging for two-days in a row to ensure enough charge time, and switching between any of the four AA slots on the charger. Most of the batteries would result in a quick two-blink (empty charger or low battery) no matter the arrangement or length of time in the charger.
Of the batteries that were accepted by the charger (couple of Eneloops and four of my Energizer NiMH AA batteries), those batteries never fully charged. I tried leaving the batteries in for two days of sunlight, but it made no difference.Read more ›
Most Recent Customer Reviews
I find it too long to recharge batters it is in the direct sun for three day before it recharges batteriesPublished on May 5, 2014 by Michael Q.uinn CPA MBA
Works great for charging AA's in the wilderness, even when it's cloudy. We spent a month in Alaska and used it to charge batteries (Eneloop) for our camera. Read morePublished on April 8, 2014 by tom
This worked the first time I used it - and not since. Refuses to charge- just fast blinking red incessantly. Tried different batteries but same results.Published on April 6, 2014 by Corey
This thing is so cool and it works well I'm not just saying that after taking it out of the box. Ive had this thing for nearly a year now and have used it a lot on everything from... Read morePublished on August 19, 2013 by FURBAG
I own the powerfilm that charges two batteries and it works great and I have a ritelite usb led computer light that I plug into its usb port giving me light for many hours. Read morePublished on June 27, 2013 by reviewer
5 stars all the way! I use this to power my electronics when I am hiking in the back country. It charges batteries pretty darn fast, is lightweight, and also fairly flexible so I... Read morePublished on May 10, 2013 by Forrest Moistner
Does what it says, Charges Batteries relatively quick (as long as you have full sun)for something that folds up small and is light weight. Read morePublished on January 27, 2012 by R Gibbons
Does a good job charging AA batteries for power outages in Florida due to storms. Much faster charging than old solar charger I donated. Read morePublished on June 9, 2011 by joe
I am truly amazed. This is one of the fastest solar AA battery chargers I've ever owned. There are 2 charging indicator lights on the back of the battery compartment, so you can... Read morePublished on April 12, 2011 by NutWrench