I decided I wanted to have the option to be entirely self sufficient with my battery power should there be an emergency. Apart from stocking up on hundreds of batteries, I thought it would be better to look at solar chargers.
With their lower voltage, I assumed an AA solar charger would have a relatively easy job and should be quite reliable. After looking at various options I settled on a compact and versatile unit that charges 2 AAs and can also be used to charge usb devices:
http://www.7dayshop.com/catalog/prod...ucts_id=108418
Maybe I got a faulty one, but the solar charging is useless. According to their specifications, given good light the batteries should be full after a few days. After two weeks sitting on a very sunny windowsill, I took out the two batteries and ran a top up charge on my BC-700 to see how much charge they had accrued during the two weeks, the results were shocking. Of the two batteries, one had been charged to have 1400mAh, and the other one 150mAh, yes, only 1 5 0 mAh!
Has anyone got one of these and got a better result, or used a solar charger that works?
With their lower voltage, I assumed an AA solar charger would have a relatively easy job and should be quite reliable. After looking at various options I settled on a compact and versatile unit that charges 2 AAs and can also be used to charge usb devices:
http://www.7dayshop.com/catalog/prod...ucts_id=108418
Maybe I got a faulty one, but the solar charging is useless. According to their specifications, given good light the batteries should be full after a few days. After two weeks sitting on a very sunny windowsill, I took out the two batteries and ran a top up charge on my BC-700 to see how much charge they had accrued during the two weeks, the results were shocking. Of the two batteries, one had been charged to have 1400mAh, and the other one 150mAh, yes, only 1 5 0 mAh!
Has anyone got one of these and got a better result, or used a solar charger that works?
