Uneven power
I purchased this battery to power an Asus Eee subnotebook, which runs on 9v (other Asus Eee users have had good experiences with similar DVD player batteries). The Energizer did a fine job of powering the laptop for about 50 minutes, but then the machine started having to flick back and forth between its own battery and the Energizer for power because the Energizer was no longer putting out the requisite power. According to the Energizer's own power display, it was still 3/4s full at this point, so there's no good excuse for the power diminishing.
Rating: 1 stars