Portable Energizer Max Power Bank Has 25 Percent Lower Charge Capacity Than Advertised, Class Action Claims

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A proposed class action lawsuit alleges Energizer Brands has misled consumers by falsely claiming that its Max Power Bank portable charger will deliver 10,000 milliampere hours (mAh).

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The 10-page lawsuit says that the portable charger’s mAh is estimated based on an average voltage of 3.7 volts, even though numerous devices that the product might be used to charge—iPhones, for example—operate on five volts. If the Energizer product is charging a five-volt electronic device, the power bank’s charge capacity is necessarily reduced to compensate for the conversion to a higher voltage, the suit relays.

In such cases, the product’s charge capacity is between only 6,000 and 6,600 mAh—more than 25 percent lower than advertised, the case claims.

Products with 10,000 mAh charge capacities are capable of fully charging a smartphone at least three times, the filing says. However, as the complaint tells it, Energizer’s power bank cannot even charge a smartphone twice.

Like other reasonable consumers, the Illinois-based plaintiff bought the portable charger with the expectation that it would deliver 10,000 mAh as represented on the product’s label, the suit says. The man would not have paid as much for the power bank, or purchased the product at all, had he known it had a significantly lower charging capacity than advertised, the case states.

The lawsuit looks to represent anyone in Illinois, Utah, North Dakota, Kansas, Mississippi, Arkansas, Alaska, Wyoming and South Carolina who purchased the Energizer-brand Max Power Bank product during the applicable statute of limitations period.

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