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

It's a fact of life that batteries wear out. Whether you're using your camera in the field, your remote control at home, or your flashlight on a camping trip, you'll want to have some extras on hand. Browse the top-ranked list of replacements batteries below along with associated reviews and opinions.

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  1. Panasonic - eneloop Charger and 4 AAA Batteries Kit - White - Front_Zoom
    Top comment

    "Replacement batteries...I thought you could only charge AAA , but you can charge AA also. Came with 4 AAA batteries ....Battery charger...Hopefully, the batteries will last a while. Haven't used them yet."

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    Product Description

    Enjoy long battery life and high performance with this Panasonic AAA eneloop battery pack and charger set. Four rechargeable, Ni-MH AAA batteries come ready to use with their individual charger. The batteries in this Panasonic eneloop AAA battery pack and charger set reduce self-discharge and work for up to 2,100 charges.
    See all Rechargeable Batteries
    Top comment

    "Replacement batteries...I thought you could only charge AAA , but you can charge AA also. Came with 4 AAA batteries ....Battery charger...Hopefully, the batteries will last a while. Haven't used them yet."

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    Product Description

    Enjoy long battery life and high performance with this Panasonic AAA eneloop battery pack and charger set. Four rechargeable, Ni-MH AAA batteries come ready to use with their individual charger. The batteries in this Panasonic eneloop AAA battery pack and charger set reduce self-discharge and work for up to 2,100 charges.
    See all Rechargeable Batteries
    See all Rechargeable Batteries
  2. Best Buy essentials™ - AAA Batteries (8-Pack) - Alt_View_Zoom_11
    Top comment

    "They're batteries. Simply put!...Good replacement! I also like the minimal amount of packaging. ...Replacement Batteries...Happy with the batteries. They are used to replace expired batteries in the computer mouse. "

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    Product Description

    They’re just batteries – until your remote control is dead. The Best Buy essentials BE-BAAA8PK AAA Batteries (8-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 8 alkaline AAA batteries, ensuring you have enough to power your device. Safe and environmentally friendly, they are also mercury- and cadmium-free. They deliver a long-lasting and reliable charge with a 1,300 mAh capacity and 1.5 V of power, ensuring your toys, remote controls, cameras and other electronics are ready to go. Keep your favorite electronics powered with alkaline batteries backed by Best Buy.
    See all Alkaline Batteries
    Top comment

    "They're batteries. Simply put!...Good replacement! I also like the minimal amount of packaging. ...Replacement Batteries...Happy with the batteries. They are used to replace expired batteries in the computer mouse. "

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    Product Description

    They’re just batteries – until your remote control is dead. The Best Buy essentials BE-BAAA8PK AAA Batteries (8-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 8 alkaline AAA batteries, ensuring you have enough to power your device. Safe and environmentally friendly, they are also mercury- and cadmium-free. They deliver a long-lasting and reliable charge with a 1,300 mAh capacity and 1.5 V of power, ensuring your toys, remote controls, cameras and other electronics are ready to go. Keep your favorite electronics powered with alkaline batteries backed by Best Buy.
    See all Alkaline Batteries
    See all Alkaline Batteries
  3. Best Buy essentials™ - 9 V Batteries (4-Pack) - Front_Zoom
    Top comment

    "Batteries for replacement in Smoke Detectors...Purchased these for replacing batteries in smoke alarms. They were less than 1/2 the name brand. ...It's a battery...These are a good replacement for a 9 volt battery."

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    Product Description

    They’re just batteries – until your electronics are powerless. The Best Buy essentials BE-B9V4PK 9 V Batteries (4-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 4 alkaline 9 V batteries, ensuring you always have backups when you need them. Safe and environmentally friendly, they are also mercury- and cadmium-free. They deliver a long-lasting and reliable charge with a 500 mAh capacity and 9 V of power, ensuring your remote controls, alarms and other electronics are ready to go. Be prepared for the next time you need power with alkaline batteries Backed by Best Buy.
    See all Alkaline Batteries
    Top comment

    "Batteries for replacement in Smoke Detectors...Purchased these for replacing batteries in smoke alarms. They were less than 1/2 the name brand. ...It's a battery...These are a good replacement for a 9 volt battery."

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    Product Description

    They’re just batteries – until your electronics are powerless. The Best Buy essentials BE-B9V4PK 9 V Batteries (4-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 4 alkaline 9 V batteries, ensuring you always have backups when you need them. Safe and environmentally friendly, they are also mercury- and cadmium-free. They deliver a long-lasting and reliable charge with a 500 mAh capacity and 9 V of power, ensuring your remote controls, alarms and other electronics are ready to go. Be prepared for the next time you need power with alkaline batteries Backed by Best Buy.
    See all Alkaline Batteries
    See all Alkaline Batteries
  4. Best Buy essentials™ - CR123 Batteries (6-Pack) - Alt_View_Zoom_11
    Top comment

    "Just as good as brand batteries...Currently using as flashlight replacement battery...BB battery...Reasonable price for security system battery replacements."

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    Product Description

    They’re just batteries – until your keyless entry is dead. The Best Buy essentials BE-B1236PK CR123 Batteries (6-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 6 lithium CR123 batteries, providing you with enough backups for when you need them. They deliver a reliable charge with a 1,400 mAh capacity and 3 V of power, ensuring your keyless entries, glucometers, games and other compatible electronics are ready to go. Be prepared for the next time you need power with batteries Backed by Best Buy.
    See all Alkaline Batteries
    Top comment

    "Just as good as brand batteries...Currently using as flashlight replacement battery...BB battery...Reasonable price for security system battery replacements."

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    Product Description

    They’re just batteries – until your keyless entry is dead. The Best Buy essentials BE-B1236PK CR123 Batteries (6-Pack) deliver consistent power to a wide variety of compatible toys and electronics. This pack contains 6 lithium CR123 batteries, providing you with enough backups for when you need them. They deliver a reliable charge with a 1,400 mAh capacity and 3 V of power, ensuring your keyless entries, glucometers, games and other compatible electronics are ready to go. Be prepared for the next time you need power with batteries Backed by Best Buy.
    See all Alkaline Batteries
    See all Alkaline Batteries
  5. Insta360 - Rechargeable Lithium Polymer Battery for X3 Action Camera - Front_Zoom
    Top comment

    "Back up battery...Extra batteries always come in hand with action cameras...Great extra batteries ....I bought 2 extra batteries for the insta 360 x3. Battery tends to die fast but easy fix just but more battery lol"

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    Product Description

    Insta360 X3 Rechargeable Lithium Polymer Battery for use as a spare or replacement battery for X3. Has 1800mAh capacity to keep your X3 powered.
    See all Action Camera Batteries & Chargers
    Top comment

    "Back up battery...Extra batteries always come in hand with action cameras...Great extra batteries ....I bought 2 extra batteries for the insta 360 x3. Battery tends to die fast but easy fix just but more battery lol"

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    Product Description

    Insta360 X3 Rechargeable Lithium Polymer Battery for use as a spare or replacement battery for X3. Has 1800mAh capacity to keep your X3 powered.
    See all Action Camera Batteries & Chargers
    See all Action Camera Batteries & Chargers
  6. APC - Back-UPS Pro 1050VA Tower UPS - Black - Front_Zoom
    Top comment

    "My APC 1500VA model stopped working after 10 years and several battery replacements. It was huge and weighed a ton so difficult to maneuver. ...They are solid and have good value. It's easy to get replacement batteries when you need them."

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    Product Description

    High Performance Computer and Electronics UPS for Premium Power Protection
    See all Battery Backup (UPS)
    Top comment

    "My APC 1500VA model stopped working after 10 years and several battery replacements. It was huge and weighed a ton so difficult to maneuver. ...They are solid and have good value. It's easy to get replacement batteries when you need them."

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    Product Description

    High Performance Computer and Electronics UPS for Premium Power Protection
    See all Battery Backup (UPS)
    See all Battery Backup (UPS)
  7. Jasco - 3.6V NiMH Battery for Cordless Phones - Front_Zoom

    Product Description

    Extend your talk time with this GE cordless phone replacement battery. Simply compare your current battery by size, shape and connector position to determine if this powerful 3.6-volt battery is a match. Made for a variety of major-brand cordless phones, this 750 mAh GE cordless phone replacement battery keeps you in touch.
    See all Cordless Phone Batteries

    Product Description

    Extend your talk time with this GE cordless phone replacement battery. Simply compare your current battery by size, shape and connector position to determine if this powerful 3.6-volt battery is a match. Made for a variety of major-brand cordless phones, this 750 mAh GE cordless phone replacement battery keeps you in touch.
    See all Cordless Phone Batteries
    See all Cordless Phone Batteries
  8. UltraLast - Lithium-Ion Battery for Apple iPhone 8 Cell Phones - Front_Zoom
    Top comment

    "Good battery...This is a really good battery replacement for an iPhone 8. The phone now holds a charge all day. ...Good battery....Not much to say otherwise, good replacement for original Apple battery."

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    Product Description

    Keep a backup power source for your iPhone 8 in your purse or bag with this UltraLast replacement smartphone battery. The rechargeable design makes it easy to power up your device as needed, while the simple slim construction allows for easy installation. Featuring lithium-ion technology, this UltraLast replacement smartphone battery provides long-lasting use.
    See all Cell Phone Replacement Batteries
    Top comment

    "Good battery...This is a really good battery replacement for an iPhone 8. The phone now holds a charge all day. ...Good battery....Not much to say otherwise, good replacement for original Apple battery."

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    Product Description

    Keep a backup power source for your iPhone 8 in your purse or bag with this UltraLast replacement smartphone battery. The rechargeable design makes it easy to power up your device as needed, while the simple slim construction allows for easy installation. Featuring lithium-ion technology, this UltraLast replacement smartphone battery provides long-lasting use.
    See all Cell Phone Replacement Batteries
    See all Cell Phone Replacement Batteries
  9. UltraLast - CEL-IP6PLS-HC - Front_Zoom

    Model: CEL-IP6PLS-HC
    SKU: 6344518
    Top comment

    "Excelent battery replacement!...Ordered for my iPhone 6s Plus which had a battery that was at 79% health. Quick and easy replacement if you know what you are doing. ...Dantona - Lithium-Ion Battery for Apple iPhone 6s...This Dantona - Lithium-Ion Battery for Apple iPhone 6s Plus is a life saver. "

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    Product Description

    This replacement 3.82 Volt 3325mAh Lithium Ion High Capacity battery fits the Apple - iPhone 6 Plus Smart Phone and meets or exceeds original manufacturer specifications.
    See all Cell Phone Replacement Batteries
    Top comment

    "Excelent battery replacement!...Ordered for my iPhone 6s Plus which had a battery that was at 79% health. Quick and easy replacement if you know what you are doing. ...Dantona - Lithium-Ion Battery for Apple iPhone 6s...This Dantona - Lithium-Ion Battery for Apple iPhone 6s Plus is a life saver. "

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    Product Description

    This replacement 3.82 Volt 3325mAh Lithium Ion High Capacity battery fits the Apple - iPhone 6 Plus Smart Phone and meets or exceeds original manufacturer specifications.
    See all Cell Phone Replacement Batteries
    See all Cell Phone Replacement Batteries
  10. UltraLast - CEL-IP7PLS - Front_Zoom

    Model: CEL-IP7PLS
    SKU: 6344526
    Top comment

    "Overall the battery works!...Overall the battery works! Just curious and will like to know why the tools to change the battery are shown but not included! ...Good battery...Need to replace a battery and it worked perfectly."

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    Product Description

    This replacement 3.8 Volt 2900mAh Lithium Polymer battery fits the Apple iPhone 7 Plus Smart Phone and meets or exceeds original manufacturer specifications.
    See all Cell Phone Replacement Batteries
    Top comment

    "Overall the battery works!...Overall the battery works! Just curious and will like to know why the tools to change the battery are shown but not included! ...Good battery...Need to replace a battery and it worked perfectly."

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    Product Description

    This replacement 3.8 Volt 2900mAh Lithium Polymer battery fits the Apple iPhone 7 Plus Smart Phone and meets or exceeds original manufacturer specifications.
    See all Cell Phone Replacement Batteries
    See all Cell Phone Replacement Batteries
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