Best 9V Batteries

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For smoke detectors, carbon monoxide monitors, and two-way radios to work they typically need a 9V battery or two. Large flashlights and remote-controlled cars also tend to use this size of battery, too. 9 volt batteries aren't very common, but because of what they power it is important to keep some handy. Here are some of out favorites.

Our favorite

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Amazon Basics 9 Volt Everyday Alkaline Batteries - Pack of 8

Balance between quality and value

Batteries can get expensive fast, especially if you're buying them regularly. Amazon Basics makes that a little easier on your wallet by delivering a stellar product for a fantastic price. You get eight batteries in this pack that will last for a very long time. 

Best for the rest

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Energizer Max 9V Batteries

Power that goes on and on

When picking up batteries, you want to snag an option from a brand you can trust. Energizer delivers an excellent product that will ensure your technology works as intended. You get four batteries for a great price, and they're good for five years, even when in storage. Whether you need to power a flashlight or a smoke detector, you'll be good to go. 

Only what you need

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9V Batteries 2 Count

Minimum power with a lot of punch

Sometimes you only need one or two batteries to get the job done. This 2-pack of Energizer Max batteries ensures that you'll get what you need without spending any extra money along the way. You can also opt to snag a 4-pack of batteries if you want to get a new battery for each smoke detector in your home. 


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LP 9V Rechargeable Battery Charger Pack, 4-Pack Batteries

Power forever and ever

Buying batteries will inevitably create waste. If you're looking for a way to be more ecologically friendly, and cut down on your waste, picking up some rechargeable batteries is the way to go. This 4-pack of batteries from LP also includes a charging bay, so it has everything you need to ensure you have a 9v battery when you require it. You can also purchase additional batteries that are compatible with the charging bay. 

Buy in bulk

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Energizer Max Alkaline 9 Volt, 24 Pack

Power at the ready

There are times when it's easier to buy items in bulk, and that includes batteries. You can snag a 24-pack of energizer max 9V batteries for a great price, and it means that you won't need to pick up any more for quite a while. These batteries have a shelf life of 5 years, making it an excellent choice for folks who like to prepare for a rainy day. 

Be prepared

Batteries are used in all sorts of items in our modern world, from flashlights to smoke detectors. When you want a quality battery that will power your devices safely, the best option for 9V batteries is Amazon Basics 9 Volt Everyday Alkaline Batteries. You get four batteries, and they'll last for up to five years if stored. 

If you prefer a rechargeable option, then check out LP 9V Rechargeable Battery Charger Pack, 4-Pack Batteries. You get four 9V batteries and a recharge bay, so you always have a charged battery when you need it.