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Eton BoostBloc 4000mAh Portable Backup Battery Pack-Charger for Smart Phones (two full charges for most phones) and Other Devices (NBOBL4000B)

    Product Description


    Rechargeable USB Portable Backup Battery Pack

    A portable power Boost wherever you go

    Get a power boost! BoostTurbine4000 from Etón is a durable back-up battery with a hand turbine power generator that provides power when you need it most. For everyday or emergency use, BoostTurbine4000 enables you to charge your mobile device anytime, anywhere.

    Fast and Efficient

    Fast and efficient, in one minute the hand turbine power generator can produce enough power for about 4 minutes of talk time and a few critical texts. When fully charged, BoostTurbine4000 fully charges most smartphones twice.

    BoostTurbine4000 is made of tough but lightweight aluminum and with its sleek and elegant design it's compact enough to fit in your pocket. BoostTurbine4000 features a Micro-USB DC input to use with most smartphone chargers and a high output (2.1A) USB port for charging most mobile devices, including tablets. Press button to see LED indicator of battery charge level. BoostTurbine4000 is completely self-contained and it's all you need for an on-the-go-power solution.

    • Backup Battery pack with rechargeable 4000mAh lithium ion battery
    • Hand turbine power generator
    • Fully charges most smartphones two times when fully charged
    • Lightweight and durable aluminum body
    • USB output to charge smartphone or tablet
    • LED battery charge indicator
    • Micro-USB DC input for use with smart phone chargers (iPhone block, etc.)
    Eton Logo Boost 2000 Boost 4000 Boost 4200 Boost 8400
    Features Boost Turbine 2000 Boost Turbine 4000 Boost Turbine 4200 Boost Turbine 8400
    Battery Capacity 2000 mAh 4000 mAh 4200 mAh Lithium
    Battery Type Lithium Lithium Lithium Lithium
    Charges Tablets No Yes Yes Yes
    Emergency Crank Power Yes Yes No No
    Dual USB Output No No No No
    Size (in) 5 x 2.2 x 1 5 x 2.2 x 1 5.1 x 2.5 x 1.1 5.1 x 2.7 x 0.6
    Weight 7.0 oz 9.0 oz 5.0 oz 7.5 oz

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