Battery eye doesn't measure battery capacity. It only shows designed capacity, "encoded" via resistor.

Personally, I suppose that this capacity gain is true. I wonder, if it can make creating dual-batteries cheaper - maybe it's possible to buy them locally, without shipping costs (despite stating "free shipping", of course shipping is already bundled in price) from china?

I wonder, if it's also thicker than previous BL-5J. It would be funny, as many external companies changed batteries to "thinner", due to idiotic "compatibility" reasons.

/Estel