Batteroo Boost

They also claim that a built-in reverse polarity protection mechanism eliminates dangers of inserting a battery into the Batteriser the wrong way.

TechnologyCatalyst suggested that the device could be useful "if Batteriser was honest about its product", not to prolong battery life but to stabilise voltage over its lifetime.

[9] PC World's Jon Phillips demoed the Batteroo Boost operating on batteries in an Apple Inc. keyboard that he claimed were dead.

The 'power meter' on the computer's screen showed the batteries as being dead without the Batteroo Boost, and as having 100% power remaining with the Batteriser.

[10] Brian Dipert at EDN called into question the strain on the keyboard being caused by the 'power meter,' and suggested that this test might not be representative of the Batteroo Boost's effectiveness in other applications.

The bloggers involved suspect that either a click farm in Vietnam was engaged to disrepute those attacking Batteroo Boost, or a single computer with many fake or stolen YouTube accounts utilized proxied IP addresses to cover its tracks.

The lawsuit said that "... despite advertisements, solicitation, and pre-orders, Batteroo has not delivered a single Batteriser product to a consumer in the ordinary course of business."

Voltage of an AA alkaline battery during constant-current discharge at 100mA. Energy extracted from the battery is proportional to the area under the graph:
energy extracted before V =1.3V
energy extracted from V =1.3V until V =1.1V
energy not yet extracted in battery when V =1.1V