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Title: Helix XM battery replacement.
Review: Works well but the reason I bought the battery is because the battery that my Helix came with was only lasting 2 days before needing charge (using it 1.5 hours per day). This battery lasts just as long, and if fully charged and not used for three days it is almost completely discharged (This also happened with the stock battery so nothing new here). I have not tried charging the battery and taking it out of the Helix to see how long the battery last fully charged and stored. In any case it works just as the stock battery so I can't complaint too much, specially for the great price.
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