ISSUE OP has described the batteries as rechargeable, but an OzBargain member (thanks BamZero) has noted the FAQ for the product, says it is NOT rechargeable
How To use Aquacell batteries? Twist, Dunk and done!
Have you met Aquacell? Special batteries that have to be activated by submerging in water before use. And the power runs out, you put it in water, and recharged???!
Watch the video at YouTube!
Product Features:
Water activated, just need ordinary water to start working
Do not start to produce power until water is added, aquacell batteries have an infinite shelf life
Aquacell uses recycled plastic instead of steel and replaces most other heavy metals
Eco and environmental friendly
Battery type: AA
Power: 1.5V
Net weight: 30 g / 1.06 oz
Size: 50 x 14 x 14 mm / 1.97 x 0.55 x 0.55 inch
How many times can you 'recharge' this?
Isn't this simply an almost DIY electrochemical cell you make in highschool labs. Using lemon and nails?