Hi! I'm an old disabled guy scraping by on a barely adequate monthly fixed income, so I have to mind my pennies and rely almost entirely on hand-me-downs for my computers and electronics.
A while back, through FreeCycle Seattle, I was given a little (512 MB) MP3 player that uses a single AAA battery. I've been using NiMH batteries which I charge in a little charger I got at the drug store. I carry a spare rechargeable battery with me, but the NiMH batteries don't seem to hold a charge very well, so by the time I need to put it into the player, it's lost most of it's charge.
I looked around the web for a solution to this problem and I found this Metaefficient article dated November 13, 2009:
According to this article, the best rechargeable batteries are hybrid Nickel-Metal Hydride (Ni-MH) cells such as the eneloop by Sanyo or the E8GE 1000.
Does that still hold true nearly a year later?
I also would like to replace my charger with one of the newer "smart" chargers because I suspect that my older batteries are no longer taking a full charge and I also suspect that my bargain sale drug store charger could be overcharging my batteries and wasting electricity by continuing to keep charging them even after they are fully charged.
Based on that article I cited above, here's what I think I need in a charger:
Doesn't catch on fire
Can "recondition" or "renew" old batteries
Stops charging when battery is fully charged.
Can charge single batteries one at a time
Charges mixed battery sizes
Charges mixed battery types including hybrid Ni-MH.
Uncomplicated, intuitive, easy to use interface (I suffer from disabling cognitive impairment, memory loss and poor eyesight)
I'd be grateful for recommendations. Price is a factor, but at my age I figure this will be the last charger I ever buy, and I want one that is well built, so in this case I think it makes sense to pay for a good one.