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Best Buy customers often prefer the following products when searching for laptop batteries reviews.

The laptop battery is a key component of your laptop. It powers the laptop's basic functions, such as turning it on and keeping it running while it's asleep or in suspend mode. If you're looking for a replacement battery for your laptop, we've got you covered. Browse the top-ranked list of laptop batteries below along with associated reviews and opinions.

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  1. DENAQ - Lithium-Ion Battery for Select ASUS Laptops - Front_Zoom
    Top comment

    "This battery has worked great for me so far, It doesnt last as long as the original battery that came with the laptop, but works very well. ...My Asus Laptop is 5 years old and the battery life is quite low. ...Good substitue for the original battery....Excellent Battery"

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    Product Description

    Fuel your ASUS laptop with this DENAQ NM-A32-K55 battery, which features a rechargeable design with overload protection for long-term use. Lithium-ion chemistry and 10.8V of power produce a reliable charge.
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    Top comment

    "This battery has worked great for me so far, It doesnt last as long as the original battery that came with the laptop, but works very well. ...My Asus Laptop is 5 years old and the battery life is quite low. ...Good substitue for the original battery....Excellent Battery"

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    Product Description

    Fuel your ASUS laptop with this DENAQ NM-A32-K55 battery, which features a rechargeable design with overload protection for long-term use. Lithium-ion chemistry and 10.8V of power produce a reliable charge.
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    See all Laptop Batteries
  2. DENAQ - Lithium-Ion Battery for Select Dell Laptops - Front_Zoom
    Top comment

    "Fits older laptops...The laptop was abput 15 years old and hard to find a battery pack for. ...Battery...Battery is good (a bit expensive). Only holds a decent amount of charge. "

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    Product Description

    Fuel your compatible Dell laptop with this DENAQ NM-MR90Y lithium-ion battery, which features 11.1V of power and a 5200 mAh capacity for a sustained charge. Overload protection promotes safe use.
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    Top comment

    "Fits older laptops...The laptop was abput 15 years old and hard to find a battery pack for. ...Battery...Battery is good (a bit expensive). Only holds a decent amount of charge. "

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    Product Description

    Fuel your compatible Dell laptop with this DENAQ NM-MR90Y lithium-ion battery, which features 11.1V of power and a 5200 mAh capacity for a sustained charge. Overload protection promotes safe use.
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    See all Laptop Batteries
  3. DENAQ - 6-Cell Lithium-Ion Battery for HP Envy dv4 and dv6 Laptops - Front_Zoom
    Top comment

    "Battery...Had to order one took a little bit to get here but works ok battery life is so so...Nice battery for the price...The battery is a good non hp replacement for ho laptops. "

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    Product Description

    Lengthen the time you can use your HP laptop with this DENAQ replacement battery. It's compatible with several computer models for use with multiple devices.
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    Top comment

    "Battery...Had to order one took a little bit to get here but works ok battery life is so so...Nice battery for the price...The battery is a good non hp replacement for ho laptops. "

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    Product Description

    Lengthen the time you can use your HP laptop with this DENAQ replacement battery. It's compatible with several computer models for use with multiple devices.
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    See all Laptop Batteries
  4. DENAQ - 6-Cell Lithium-Ion Battery for Select HP Laptops - Front_Zoom
    Top comment

    "This battery has performed excellent. It charges up quickly and holds a charge for long time....Battery for HP Laptop...It wiil be good to replacethe current battery of my HP Laptop"

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    Product Description

    Power your HP laptop with this DENAQ NM-MU06055-6 6-cell lithium-ion battery that provides 10.8V and features a 4400 mAh capacity to keep your device ready for use. Built-in protection helps prevent overcharging.
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    Top comment

    "This battery has performed excellent. It charges up quickly and holds a charge for long time....Battery for HP Laptop...It wiil be good to replacethe current battery of my HP Laptop"

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    Product Description

    Power your HP laptop with this DENAQ NM-MU06055-6 6-cell lithium-ion battery that provides 10.8V and features a 4400 mAh capacity to keep your device ready for use. Built-in protection helps prevent overcharging.
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    See all Laptop Batteries
  5. DENAQ - Lithium-Ion Battery for Select HP Laptops - Front_Zoom
    Top comment

    "Laptop battery...Works like new. Best aftermarket battery I have ever purchased for anything. I am getting 4 hours and even more out of a full charge."

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    Product Description

    Fire up your HP laptop with this DENAQ NM-633733-321 lithium-ion battery, which features 11.1V of power for a reliable charge. Overload protection ensures safe power for your device.
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    Top comment

    "Laptop battery...Works like new. Best aftermarket battery I have ever purchased for anything. I am getting 4 hours and even more out of a full charge."

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    Product Description

    Fire up your HP laptop with this DENAQ NM-633733-321 lithium-ion battery, which features 11.1V of power for a reliable charge. Overload protection ensures safe power for your device.
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    See all Laptop Batteries
  6. DENAQ - 6-Cell Lithium-Polymer Battery for Apple® MacBook® Pro 13.3" Laptops - Front_Zoom
    Top comment

    "Once the backing is off, there's no way to remove the battery. Have purchased batteries before and they ALWAYS come with both tools. ...Works okay, feel as if it doesn’t hold a charge as well as the original battery. Also needs a better way to get the old battery out and new one in"

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    Product Description

    Use this DENAQ battery as a backup power source for your Apple laptop. Its 4400 mAh capacity provides plenty of charge, and its six Li-Po cells offer durability.
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    Top comment

    "Once the backing is off, there's no way to remove the battery. Have purchased batteries before and they ALWAYS come with both tools. ...Works okay, feel as if it doesn’t hold a charge as well as the original battery. Also needs a better way to get the old battery out and new one in"

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    Product Description

    Use this DENAQ battery as a backup power source for your Apple laptop. Its 4400 mAh capacity provides plenty of charge, and its six Li-Po cells offer durability.
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    See all Laptop Batteries
  7. DENAQ - Lithium-Ion Battery for Select Samsung Laptops - Front_Zoom
    Top comment

    "Great battery...Our Samsung is about 7yrs old.Works great for our older laptop....Battery great for laptop...So far the battery is working as expected and I am very pleased."

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    Product Description

    Fuel your compatible Samsung laptop with this DENAQ NM-PB9NC5B lithium-ion battery, which features 11.1V of power and a 4400 mAh capacity for a long-lasting charge. Overload protection promotes safe use.
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    Top comment

    "Great battery...Our Samsung is about 7yrs old.Works great for our older laptop....Battery great for laptop...So far the battery is working as expected and I am very pleased."

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    Product Description

    Fuel your compatible Samsung laptop with this DENAQ NM-PB9NC5B lithium-ion battery, which features 11.1V of power and a 4400 mAh capacity for a long-lasting charge. Overload protection promotes safe use.
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    See all Laptop Batteries
  8. DENAQ - Lithium-Ion Battery for Select ASUS Laptops - Front_Zoom
    Top comment

    "The battery works fine....The computer that this battery is for was bought at a Best Buy almost 10 years ago, the only problem is that it is only 10.8 V, the battery in it before was 11.4. ...Perfect Replacement Battery...The previous replacement from another vendor was inconsistent in performance. This battery works perfectly and I am surprised a replacement was still available for such an old Laptop."

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    Product Description

    Continue to power your ASUS laptop with this DENAQ NM-A32-F82 battery, which feature lithium-ion chemistry and 10.8V of power for reliable recharging. The rechargeable design with overload protection ensures long-term use.
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    Top comment

    "The battery works fine....The computer that this battery is for was bought at a Best Buy almost 10 years ago, the only problem is that it is only 10.8 V, the battery in it before was 11.4. ...Perfect Replacement Battery...The previous replacement from another vendor was inconsistent in performance. This battery works perfectly and I am surprised a replacement was still available for such an old Laptop."

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    Product Description

    Continue to power your ASUS laptop with this DENAQ NM-A32-F82 battery, which feature lithium-ion chemistry and 10.8V of power for reliable recharging. The rechargeable design with overload protection ensures long-term use.
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    See all Laptop Batteries
  9. DENAQ - 8-Cell Lithium-Ion Battery for Lenovo G40-70 and G70-80 Laptops - Front_Zoom
    Top comment

    "I got about 6 hours of use on my Lenovo laptop with this battery. It is bigger than the OEM so it made my computer lean forward just a bit. ...Replacement battery for lenovo...Works very well, has much more battery life than original. It does make my laptop set up higher in the back because expanded battery height. "

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    Product Description

    Power your Lenovo laptop with this 4400 mAh DENAQ replacement battery. It has a LiIon cell for reliable performance, and it installs quickly for easy swapping.
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    Top comment

    "I got about 6 hours of use on my Lenovo laptop with this battery. It is bigger than the OEM so it made my computer lean forward just a bit. ...Replacement battery for lenovo...Works very well, has much more battery life than original. It does make my laptop set up higher in the back because expanded battery height. "

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    Product Description

    Power your Lenovo laptop with this 4400 mAh DENAQ replacement battery. It has a LiIon cell for reliable performance, and it installs quickly for easy swapping.
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    See all Laptop Batteries
  10. Dantona - Lithium-Polymer Battery for Apple® MacBook® Pro 17" Laptops - Front_Zoom
    Top comment

    "Replacement battery...Fit perfectly. Replaced original battery that swelled and popped it’s case. Working great. ...I'll give it a few months and battery charge cycles to see how it holds up."

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    Product Description

    Get an ultra-lightweight power option for your 17-inch Apple MacBook Pro with this Denaq lithium-polymer replacement battery. An ideal backup solution, this thin battery slips easily into your laptop bag. This Denaq lithium-polymer replacement battery delivers 6300 mAh of power, providing steady support when you can't find an outlet nearby.
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    Top comment

    "Replacement battery...Fit perfectly. Replaced original battery that swelled and popped it’s case. Working great. ...I'll give it a few months and battery charge cycles to see how it holds up."

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    Product Description

    Get an ultra-lightweight power option for your 17-inch Apple MacBook Pro with this Denaq lithium-polymer replacement battery. An ideal backup solution, this thin battery slips easily into your laptop bag. This Denaq lithium-polymer replacement battery delivers 6300 mAh of power, providing steady support when you can't find an outlet nearby.
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    See all Laptop Batteries
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