Solar Powered Battery Charger with Meter Charges 2 D - C - AA - AAA Batteries
|Price:||$29.00 + $4.99 shipping|
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Top Customer Reviews
I mostly tested it with AA and AAA batteries and they held their charges fine. But not knowing whether the batteries are fully charged is a bit of a pain, requiring you to get a separate battery tester. Fortunately these are cheap. [...]
Given the price of this item, even if you throw in the price of a battery tester, I'd say it's worth having. Get around the problem of inconsistent sunny days by having several extra rechargeable batteries you can use while waiting for a prime day. Just make sure you have a plug-in model as backup in case you really need a quick charge. I haven't used mine since I got this unit, so it seems to be practical for every day use.
We have been very happy with the unit. It is well constructed and sturdy, and will hold up to standard use. In other words, the plastic is industrial grade, much more sturdy your average Chinese battery operated toy.
Even when using the battery braces AAA and AA cells tend to pop out if you over handle the charger. If you snap the unit shut this could dislodge one of the cells enough to prevent any charging. Thus, you could waste all day waiting for the charge which never happens.
9 hours of full sunlight reportedly charges a 1500 mA D cell. But a good rechargable D cell holds at least 4 amps or more. The reported charge times for the cells is based on a minimalist cell. Unless you are a hobbiest who gets a kick out of "free energy" (and who doesn't) this probably would not serve the camping enthusiast well if you are charging anything more than two AA's a day.
Charging Primary Cells - ATTEMPT AT YOUR OWN RISK! Risk of leaking, injury or fire.
In researching information on batteries I read it IS possible to recharge SOME primary alkaline cells. Results vary depending on the battery make, depleted state and charging at LOW current. In full sunlight this unit averages 80 mA per cell, so I thought - "Why not."
Keep in mind I did this fully understanding I may destroy the unit due to corrosion or fire from leaking or exploding cells. If you hear a battery "pop", it exploded.
I tested two Radio Shack AAA gold Alkalines which date back at least 5 years. Slightly better make than the cells they have today. They measured about 0.9 volts and pretty much stopped working. 0.Read more ›
I found it was tough to get some of the batteries to stay in place - especially the AAA batteries. They slip out really easily. Which is only a problem because sometimes the charger needs to be tilted in order to get the right sun. If the batteries aren't held in well, they pop out of place.
Additionally, the charge is consistently weak. I live in California and am able to put this in a place where it gets full sun all day long (according to it's built in meter, it was getting full sun) but that didn't seem to help. We'd pull a battery out of the charger and be able to use it for hours or days instead of weeks. It would work in a pinch or for camping or for dedicated off the grid usage. But in a fast moving household where batteries are needed in lots of stuff, it's just not practical for all the time use. I still use it from time to time but I wish it charged more consistently.
Also, today, Saturday, April 18, less than 60 hrs after I ordered, I received also the solar batteries. I am very happy with my Solar Charger and the delivery service; I will recommend it to all of my neighbors and friends.
Thank you Amazon for providing great products and reliable shipping services. T.A.
Most Recent Customer Reviews
Good to have for long power outages or zombie apocalypse, but it does take a long time to charge batteries. Read morePublished 5 months ago by Gone kayaking
Works great. Now if I loose power for a long time I can charge my batteries with the Sun.Published 6 months ago by Dale F. Long
It is OK. I thought batteries are included. There is another one cheaper than this. It can charges only two batteries for different sizes.Published 12 months ago by sunsup jeong
I have not figured it out and I am sorry I bought it. This is Ohio and not enough sun yet....it is winter and the sun is not accessible like it is in AZ or CAPublished on January 3, 2014 by Joyce Major
I quit buying regular batteries last year. I started buying rechargables. Using this model I was able to charge AA on a cloudy day in just a few hours. Read morePublished on December 15, 2012 by mac mckay