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Best Buy customers often prefer the following products when searching for smartphone extended battery.

If you're a smartphone user, you've probably experienced the frustration of your phone running out of juice just when you need it most. Fortunately, there are plenty of options for extending your battery life. Browse the top-ranked list of smartphone extended batteries below along with associated reviews and opinions.

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  1. Dantona - Lithium-Ion Battery for Apple iPhone 6s - Front_Zoom
    Top comment

    "This battery works as expected and holds a charge longer than the cheaper version that was also available on the Best Buy website, so I’ve extended the useable life of the phone by a few years, by which time it will probably not accept any more updates, and with have to be replaced anyway."

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    Product Description

    This replacement 3.8 Volt 1715mAh Lithium Ion battery fits the Apple A1633 Cellular Phone and meets or exceeds original manufacturer specifications.
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    Top comment

    "This battery works as expected and holds a charge longer than the cheaper version that was also available on the Best Buy website, so I’ve extended the useable life of the phone by a few years, by which time it will probably not accept any more updates, and with have to be replaced anyway."

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    Product Description

    This replacement 3.8 Volt 1715mAh Lithium Ion battery fits the Apple A1633 Cellular Phone and meets or exceeds original manufacturer specifications.
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    Your price for this item is $18.99
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  2. UltraLast - Lithium Battery for Samsung Galaxy Note 4 - Front_Zoom
    Top comment

    "Good battery, bought this product to extend my phone life till the Note 9 arrives."

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    Product Description

    Place calls, send texts and browse the Internet for longer with this UltraLast lithium-ion replacement battery. Compatible with the Samsung Galaxy Note 4, this battery delivers the power you need to use all your phone's apps. With its rechargeable design, this UltraLast lithium-ion replacement battery keeps your device ready for use wherever life takes you.
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    Top comment

    "Good battery, bought this product to extend my phone life till the Note 9 arrives."

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    Product Description

    Place calls, send texts and browse the Internet for longer with this UltraLast lithium-ion replacement battery. Compatible with the Samsung Galaxy Note 4, this battery delivers the power you need to use all your phone's apps. With its rechargeable design, this UltraLast lithium-ion replacement battery keeps your device ready for use wherever life takes you.
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    Your price for this item is $23.99
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  3. UltraLast - Lithium-Ion Battery for Select Samsung Cell Phones - Front_Zoom

    Product Description

    Keep your compatible Samsung cell phone charged with this Ultralast CEL-I9500NF rechargeable battery, which delivers up to 3.8V of power. The lithium-ion battery offers overload protection to help ensure the safety of your device.
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    Product Description

    Keep your compatible Samsung cell phone charged with this Ultralast CEL-I9500NF rechargeable battery, which delivers up to 3.8V of power. The lithium-ion battery offers overload protection to help ensure the safety of your device.
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    Your price for this item is $24.99
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  4. Dantona - Lithium-Polymer Battery for Apple iPhone 6s - Front_Zoom

    Product Description

    This replacement 3.8 Volt 2750mAh Lithium Polymer battery fits the Apple A1634 Cellular Phone and meets or exceeds original manufacturer specifications.
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    Product Description

    This replacement 3.8 Volt 2750mAh Lithium Polymer battery fits the Apple A1634 Cellular Phone and meets or exceeds original manufacturer specifications.
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    Your price for this item is $15.99
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  5. UltraLast - Lithium-Ion Battery for Select Samsung Cell Phones - Front_Zoom

    Product Description

    Keep your cell phone charged throughout the day with this Ultralast CEL-I9600NF internal battery, which guards against power overload for added security. The lithium-ion battery is compatible with select Samsung cell phones and delivers 3.85V of power.
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    Product Description

    Keep your cell phone charged throughout the day with this Ultralast CEL-I9600NF internal battery, which guards against power overload for added security. The lithium-ion battery is compatible with select Samsung cell phones and delivers 3.85V of power.
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    Your price for this item is $25.99
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  6. Dantona - UltraLast Lithium-Ion Battery for Apple iPhone 6 - Front_Zoom

    Product Description

    This replacement 3.8 Volt 1800mAh Lithium Polymer battery fits the Apple iPhone 6 Cellular Phone and meets or exceeds original manufacturer specifications.
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    Product Description

    This replacement 3.8 Volt 1800mAh Lithium Polymer battery fits the Apple iPhone 6 Cellular Phone and meets or exceeds original manufacturer specifications.
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    Your price for this item is $14.99
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  7. Dantona - UltraLast Lithium-Ion Battery for Apple iPhone 6 - Front_Zoom

    Product Description

    Batteries from Dantona Industries are quality manufactured batteries.
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    Product Description

    Batteries from Dantona Industries are quality manufactured batteries.
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    Your price for this item is $18.99
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  8. UltraLast - Lithium-Ion Battery for Apple® iPhone® 5s - Front_Zoom

    Product Description

    Keep your Apple iPhone 5s running smoothly with this Ultralast CEL-IP5S lithium-ion battery, which provides a 3.8V electrical supply to your device. Overload protection ensures your phone stays safe from sudden power surges.
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    Product Description

    Keep your Apple iPhone 5s running smoothly with this Ultralast CEL-IP5S lithium-ion battery, which provides a 3.8V electrical supply to your device. Overload protection ensures your phone stays safe from sudden power surges.
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    Your price for this item is $28.99
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  9. UltraLast - Battery for Apple® iPhone® 5 - Front_Zoom

    Product Description

    Power up your Apple iPhone 5 with this Ultralast CEL-IP5 battery, which provides a 1440 mAh capacity and 3.8V of power for efficiency. Overload protection ensures your device is shielded from unexpected power surges.
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    Product Description

    Power up your Apple iPhone 5 with this Ultralast CEL-IP5 battery, which provides a 1440 mAh capacity and 3.8V of power for efficiency. Overload protection ensures your device is shielded from unexpected power surges.
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    Your price for this item is $26.99
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  10. Dantona - UltraLast Lithium-Polymer Battery for Apple iPhone 7 - Front_Zoom

    Product Description

    Refurbish your smartphone with this Ultralast lithium-polymer 3.8-volt rechargeable battery. The 1960 mAh capacity offers lasting power and reduced charging requirements. Compatibility with the Apple iPhone 7 model ensures a precise fit and proper operation. This Ultralast lithium-polymer 3.8-volt rechargeable battery comes with multiple tools for a simple, easy installation.
    See all Cell Phone Replacement Batteries

    Product Description

    Refurbish your smartphone with this Ultralast lithium-polymer 3.8-volt rechargeable battery. The 1960 mAh capacity offers lasting power and reduced charging requirements. Compatibility with the Apple iPhone 7 model ensures a precise fit and proper operation. This Ultralast lithium-polymer 3.8-volt rechargeable battery comes with multiple tools for a simple, easy installation.
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    Your price for this item is $17.99
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