Double AA Rechargeable USB Battery – 4 Pack
These are 1450mAh batteries that are rechargeable via standard USB port.
This is the better way digital devices should be designed. I am not a fan of, for example, my portable speaker going south because the device can no longer hold a charge. I’d much rather have my portable speaker take batteries which I can replace, than my device going dead and I have to throw it away.
As I type this, the four pack of double AA batteries are going for $35. So just under $10 per battery.
The company claims they will take 500 charges. Assuming they have over stated that statistic, even at 250 charges… it’s a smart move.
They also claim the AA battery will last 2 to 3 times longer than a normal battery. Probably a direct link to the 1.2V NiMH nickel metal hydride cell technology.
