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

A battery is a device that stores chemical energy and converts it to electrical energy. The chemical reactions in a battery involve the flow of electrons from one material (electrode) to another, through an external circuit. The flow of electrons provides an electric current that can be used to do work. Browse the top-ranked list of lightest batteries below along with associated reviews and opinions.

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  1. BlackWolf - Wush Powered Ear Cleaner - Black - Front_Zoom
    Top comment

    "Runs out of water quickly. Charge for battery lasts a very long time. tip is simple to clean....There are three settings but using the lightest pressure setting works fine most of the time. "

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    Product Description

    Wush is the new, safe, and effective way to remove earwax. With the press of a button, Wush generates a massaging triple jet stream of water that gently removes wax build-up and flushes it away.
    See all Hearing Aid Accessories
    Top comment

    "Runs out of water quickly. Charge for battery lasts a very long time. tip is simple to clean....There are three settings but using the lightest pressure setting works fine most of the time. "

    See all customer reviews

    Product Description

    Wush is the new, safe, and effective way to remove earwax. With the press of a button, Wush generates a massaging triple jet stream of water that gently removes wax build-up and flushes it away.
    See all Hearing Aid Accessories
    See all Hearing Aid Accessories
  2. Energizer - Ultimate Lithium AA Batteries (8 Pack), Double A Batteries - Front_Zoom
    Top comment

    "Batteries...Good battery last longer than the normal batteries...The very best & lightest weight batteries...I simply love these batteries! They last a really long time. They are very light weight, too. "

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    Product Description

    Nothing outlasts Energizer Ultimate Lithium AA Batteries. These household batteries are not only the world's longest lasting AA batteries, but they also feature leak resistant construction and superior performance in extreme temperatures ranging from -40 degrees F to 140 degrees F. Use these AA lithium batteries to power a variety of high tech and household items, whether you need smoke detector batteries, camera batteries, or double A batteries to power your child's favorite toys and games. Ultimate Lithium Energizer AA batteries weigh one-third less than standard alkaline batteries, and they hold power for up to 25 years in storage, letting you keep a ready supply available when you need them. To ensure your favorite devices operate at their peak performance, depend on Energizer Ultimate Lithium batteries for work, play and home.
    See all Lithium Batteries
    Top comment

    "Batteries...Good battery last longer than the normal batteries...The very best & lightest weight batteries...I simply love these batteries! They last a really long time. They are very light weight, too. "

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    Product Description

    Nothing outlasts Energizer Ultimate Lithium AA Batteries. These household batteries are not only the world's longest lasting AA batteries, but they also feature leak resistant construction and superior performance in extreme temperatures ranging from -40 degrees F to 140 degrees F. Use these AA lithium batteries to power a variety of high tech and household items, whether you need smoke detector batteries, camera batteries, or double A batteries to power your child's favorite toys and games. Ultimate Lithium Energizer AA batteries weigh one-third less than standard alkaline batteries, and they hold power for up to 25 years in storage, letting you keep a ready supply available when you need them. To ensure your favorite devices operate at their peak performance, depend on Energizer Ultimate Lithium batteries for work, play and home.
    See all Lithium Batteries
    See all Lithium Batteries
  3. Rayovac High Energy AA Batteries (16 Pack), Double A Alkaline Batteries - Front_Zoom
    Top comment

    "Good Battery Deal...Good price on batteries and I didn't have to go to the store....Great batteries, as describe they last as long as the leading battery."

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    Product Description

    Keep your electronics up and running with these Rayovac 815-16B4TBLFU AA batteries, which include 4 Fusion Advanced batteries. Compatible with a wide range of devices, the 1.5V batteries feature a 2500 mAh capacity for reliable performance.
    See all Alkaline Batteries
    Top comment

    "Good Battery Deal...Good price on batteries and I didn't have to go to the store....Great batteries, as describe they last as long as the leading battery."

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    Product Description

    Keep your electronics up and running with these Rayovac 815-16B4TBLFU AA batteries, which include 4 Fusion Advanced batteries. Compatible with a wide range of devices, the 1.5V batteries feature a 2500 mAh capacity for reliable performance.
    See all Alkaline Batteries
    See all Alkaline Batteries
  4. Rayovac High Energy AA Batteries (8 Pack), Double A Alkaline Batteries - Front_Zoom
    Top comment

    "Long running batteries...Good batteries..Long running and good quality battery....battery...Yep that are batteries and they work like batteries ."

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    Product Description

    Compatible with a wide range of household electronics, these Rayovac 815-8CTF2 AA batteries provide reliable, long-lasting power. The 8-pack helps ensure there are extras in your supply.
    See all Alkaline Batteries
    Top comment

    "Long running batteries...Good batteries..Long running and good quality battery....battery...Yep that are batteries and they work like batteries ."

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    Product Description

    Compatible with a wide range of household electronics, these Rayovac 815-8CTF2 AA batteries provide reliable, long-lasting power. The 8-pack helps ensure there are extras in your supply.
    See all Alkaline Batteries
    See all Alkaline Batteries
  5. Rayovac High Energy D Batteries (4 Pack), Alkaline D Cell Batteries - Front_Zoom
    Top comment

    "Affordable Batteries...These batteries are sufficient for your regular every day battery needs....Batteries...Energizer best selling battery. I was totally out of D batteries."

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    Product Description

    Provide power to household electronics with this Rayovac 813-4TF2 D batteries 4-pack. Reclosable packaging lets you take what you need and stow the rest neatly away.
    See all Alkaline Batteries
    Top comment

    "Affordable Batteries...These batteries are sufficient for your regular every day battery needs....Batteries...Energizer best selling battery. I was totally out of D batteries."

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    Product Description

    Provide power to household electronics with this Rayovac 813-4TF2 D batteries 4-pack. Reclosable packaging lets you take what you need and stow the rest neatly away.
    See all Alkaline Batteries
    See all Alkaline Batteries
  6. Rayovac High Energy C Batteries (4 Pack), Alkaline C Cell Batteries - Front_Zoom
    Top comment

    "Rayovac High Energy 9V Batteries...[This review was collected as part of a promotion.] Great batteries. Works well and well made. Provide the battery power needed for whatever device you install this in. ...Excellent battery...Perfect batteries. I don’t have any problem till now"

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    Product Description

    Power your games, toys or flashlights with these Rayovac C batteries. This 4-pack of batteries can last for 10 years when they are properly stored to provide superior performance. With a long storage life, you can stock up so you won't be caught unprepared. These alkaline Rayovac C batteries last as long as the competition without the added cost.
    See all Alkaline Batteries
    Top comment

    "Rayovac High Energy 9V Batteries...[This review was collected as part of a promotion.] Great batteries. Works well and well made. Provide the battery power needed for whatever device you install this in. ...Excellent battery...Perfect batteries. I don’t have any problem till now"

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    Product Description

    Power your games, toys or flashlights with these Rayovac C batteries. This 4-pack of batteries can last for 10 years when they are properly stored to provide superior performance. With a long storage life, you can stock up so you won't be caught unprepared. These alkaline Rayovac C batteries last as long as the competition without the added cost.
    See all Alkaline Batteries
    See all Alkaline Batteries
  7. Digipower - Re-Fuel Self Charging Lithium-Ion Replacement Battery for Sony NP-FZ100 - Front_Zoom
    Top comment

    "Great quality battery. Easy to charge, the battery last....Soild non-brand battery...It does last as long as a Sony battery but with the price difference between the two types of batteries, it is worth the purchase"

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    Product Description

    Make sure your camera remains ready for use with this DigiPower RF-IC-FZ100 self-charging lithium-ion battery with built-in USB-C port for charging, which replaces the NP-FZ100 battery in your Sony Alpha 1, Alpha 7 IV, Alpha 7c, Alpha 7r III, Alpha 7r IV, Alpha 7s III, Alpha 9, Alpha 9 II, Alpha 9II, Alpha a6600, Alpha a7 III, FX3 digital camera and delivers 7.2V of power for a reliable charge.
    See all Camera Batteries & Power
    Top comment

    "Great quality battery. Easy to charge, the battery last....Soild non-brand battery...It does last as long as a Sony battery but with the price difference between the two types of batteries, it is worth the purchase"

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    Product Description

    Make sure your camera remains ready for use with this DigiPower RF-IC-FZ100 self-charging lithium-ion battery with built-in USB-C port for charging, which replaces the NP-FZ100 battery in your Sony Alpha 1, Alpha 7 IV, Alpha 7c, Alpha 7r III, Alpha 7r IV, Alpha 7s III, Alpha 9, Alpha 9 II, Alpha 9II, Alpha a6600, Alpha a7 III, FX3 digital camera and delivers 7.2V of power for a reliable charge.
    See all Camera Batteries & Power
    See all Camera Batteries & Power
  8. Redux - Professional Grade Home Hearing Aid Dryer - Black - Front_Zoom

    Model: 900-HM11-0-BK-EN-NA
    SKU: 6549439
    Top comment

    "NOTE: all our hearing aids are over-the-ear, and only one had non-rechargeable batteries. All of us are active indiviuals (eg., all of us sweat). ...Starting in my 40s, I have seen (I suppose “heard” is a better verb) major improvements: moving from analog to digital instruments, more compact and discrete devices, marriage to smartphones for crisp binaural reception of telephone calls, and rechargeable batteries (no longer a daily chore of fastening little batteries into the devices), and the perpetual monitoring of battery health so you wouldn’t loose you hearing halfway through a lecture or performance. "

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    Product Description

    Moisture presence is inevitable in your hearing devices.  This is proven to impact the sound quality and word understanding for those impacted with hearing loss.  Moisture is also the #1 reason hearing devices need repair.  Redux is a science based complete moisture removal system, backed by 70 patents and used by thousands of Hearing Care Professionals worldwide. Redux Home brings professional-grade drying to your home, so you can be most proactive in maintaining your devices' performance and longevity. Whether you just bought your first devices or have used them for years; hear how Redux makes your hearing devices sound brand new by purchasing today!
    See all Hearing Aid Accessories
    Top comment

    "NOTE: all our hearing aids are over-the-ear, and only one had non-rechargeable batteries. All of us are active indiviuals (eg., all of us sweat). ...Starting in my 40s, I have seen (I suppose “heard” is a better verb) major improvements: moving from analog to digital instruments, more compact and discrete devices, marriage to smartphones for crisp binaural reception of telephone calls, and rechargeable batteries (no longer a daily chore of fastening little batteries into the devices), and the perpetual monitoring of battery health so you wouldn’t loose you hearing halfway through a lecture or performance. "

    See all customer reviews

    Product Description

    Moisture presence is inevitable in your hearing devices.  This is proven to impact the sound quality and word understanding for those impacted with hearing loss.  Moisture is also the #1 reason hearing devices need repair.  Redux is a science based complete moisture removal system, backed by 70 patents and used by thousands of Hearing Care Professionals worldwide. Redux Home brings professional-grade drying to your home, so you can be most proactive in maintaining your devices' performance and longevity. Whether you just bought your first devices or have used them for years; hear how Redux makes your hearing devices sound brand new by purchasing today!
    See all Hearing Aid Accessories
    See all Hearing Aid Accessories
  9. Energizer - MAX AA Batteries (24 Pack), Double A Alkaline Batteries - Front_Zoom
    Top comment

    "Batteries as good as any non rechargeable battery....Batteries...#1 battery Energizer batteries - bought various assorted sizes & stocked up"

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    Product Description

    Power the devices you love with Energizer MAX Alkaline AA Batteries. These Energizer batteries fuel the technology that helps you live, work and play, whether you need remote batteries, clock batteries, or backup batteries for your child's favorite toys and games. Energizer's #1 longest-lasting MAX, these double A batteries keep your favorite devices running longer. Powerseal Technology helps protect your devices against damaging leaks for up to two years after these AA Energizer MAX Batteries are fully used. With a shelf life of up to 12 years in storage, these long lasting batteries are ready to keep your devices operating when you need them most. Depend on the power of Energizer MAX AA Batteries to power your everyday electronics.
    See all Alkaline Batteries
    Top comment

    "Batteries as good as any non rechargeable battery....Batteries...#1 battery Energizer batteries - bought various assorted sizes & stocked up"

    See all customer reviews

    Product Description

    Power the devices you love with Energizer MAX Alkaline AA Batteries. These Energizer batteries fuel the technology that helps you live, work and play, whether you need remote batteries, clock batteries, or backup batteries for your child's favorite toys and games. Energizer's #1 longest-lasting MAX, these double A batteries keep your favorite devices running longer. Powerseal Technology helps protect your devices against damaging leaks for up to two years after these AA Energizer MAX Batteries are fully used. With a shelf life of up to 12 years in storage, these long lasting batteries are ready to keep your devices operating when you need them most. Depend on the power of Energizer MAX AA Batteries to power your everyday electronics.
    See all Alkaline Batteries
    See all Alkaline Batteries
  10. Energizer - MAX AA Batteries (16 Pack), Double A Alkaline Batteries - Front_Zoom
    Top comment

    "Batteries...Batteries for sure. 100% they are batteries. Very battery...The batteries are long lasting and powerful. Great battery to use."

    See all customer reviews

    Product Description

    Power the devices you love with Energizer MAX Alkaline AA Batteries. These Energizer batteries fuel the technology that helps you live, work and play, whether you need remote batteries, clock batteries, or backup batteries for your child's favorite toys and games. Energizer's #1 longest-lasting MAX, these double A batteries keep your favorite devices running longer. Powerseal Technology helps protect your devices against damaging leaks for up to two years after these AA Energizer MAX Batteries are fully used. With a shelf life of up to 12 years in storage, these long lasting batteries are ready to keep your devices operating when you need them most. Depend on the power of Energizer MAX AA Batteries to power your everyday electronics.
    See all Alkaline Batteries
    Top comment

    "Batteries...Batteries for sure. 100% they are batteries. Very battery...The batteries are long lasting and powerful. Great battery to use."

    See all customer reviews

    Product Description

    Power the devices you love with Energizer MAX Alkaline AA Batteries. These Energizer batteries fuel the technology that helps you live, work and play, whether you need remote batteries, clock batteries, or backup batteries for your child's favorite toys and games. Energizer's #1 longest-lasting MAX, these double A batteries keep your favorite devices running longer. Powerseal Technology helps protect your devices against damaging leaks for up to two years after these AA Energizer MAX Batteries are fully used. With a shelf life of up to 12 years in storage, these long lasting batteries are ready to keep your devices operating when you need them most. Depend on the power of Energizer MAX AA Batteries to power your everyday electronics.
    See all Alkaline Batteries
    See all Alkaline Batteries
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