Energizer Max 9V Cell Batteries – Alkaline Battery: Household Single-Use, 9 Volts
$4.79
Pack Size1pk
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4.8 out of 5 stars with 1591 reviews
74% would recommend
51 recommendations
5 out of 5 stars
6 May, 2026
originally posted on influenster.com

Energizer is the best!
Great quality, very compatible with electronic devices. Easy to find in stores and online. Long lasting and it doesn’t heat up like other batteries.
5 out of 5 stars
28 April, 2026
originally posted on influenster.com

The quality
This is the size for my smoke alarm and 02 alarm really light in weight and excellent power to keep my alarms going for months before needing to change them!!
5 out of 5 stars
28 April, 2026
originally posted on influenster.com

Powerful batteries ⁷
Nine volt batteries are very easy to use and I used to see them in a lot of items that require batteries, but recently I haven't seen as many being used battery required products. I bought a pack of four 9 volt batteries about five years ago and I still have three batteries left. Im not even sure what i bought them for. Lol.
5 out of 5 stars
23 April, 2026
originally posted on influenster.com

Energizer 9V
We use these batteries for remote control cars for our kids and they work well and last a long time. We rarely have to change them. They had a lot of power as well.
1 out of 5 stars
Thumbs down graphic, would not recommend
23 April, 2026Verified purchase
(no review title)
Corroded. Got through drive up and one of the batteries was corroded and unusable. I used one of them so my fire alarm would stop beeping, so can’t return it.
5 out of 5 stars
20 April, 2026
originally posted on influenster.com

I really like this product, it has good power and
Availability is what I love this product excellent potential and very safe reliability very very acceptable product quality good presentation acceptable precision good recommendation for this product I love it I always use this product
5 out of 5 stars
18 April, 2026
originally posted on influenster.com

Reliable power every time
The Energizer Max Alkaline 9V Batteries offer very reliable consistency, maintaining stable voltage throughout their use, which is essential for important devices. In terms of value, they're a great investment since they last long and reduce the need for frequent replacements. The size is the standard 9V, perfect for smoke detectors, remotes, and other essential electronics. Their funcionality is excellent-they deliver long-lasting performance and include leak protection for added safety. The design is sturdy and practical, easy to install, with clear packaging and simple instructions.
5 out of 5 stars
17 April, 2026
originally posted on influenster.com

Long Lasting Battery Life.
Long lasting and reliable battery. Easy to store. Long shelf life as well as long working life in product make this a reliable battery. Easy to attach and fit in items. Packaging easy to get battery out .
5 out of 5 stars
Thumbs up graphic, would recommend
11 April, 2026Verified purchase
Dependable
Always use Energizer batteries, I can always depend on them.
5 out of 5 stars
26 March, 2026
originally posted on influenster.com

Perfect for small appliances!
The 9V Energizer battery is perfect for small but mighty appliances! I've used this particular battery for years in my smoke detectors, carbon detectors, and in my stuff finding tool. I've never had to deal with any leakage, no power surges messing with the quality or battery life and I've never had to second guess what size I need for my small appliances due to the battery remaining the same in size and quality.
5 out of 5 stars
25 March, 2026
originally posted on influenster.com

Long lasting
Very strong batteries i used them for a lantern in a tent they worked perfectly and never died I still use one in my drone controller and I had it in there for a year the unboxing is also premium when I got mine it has in perfect condition.
5 out of 5 stars
13 March, 2026
originally posted on influenster.com

Good deal!
Bought these for the battery powered smoke detectors. It’s been over 9 months since I last replaced it and it hasn’t chirped since. They’re easy to find
5 out of 5 stars
10 March, 2026
originally posted on influenster.com

Long lasting power.
Energizer max 9V battery is awesome. Used it in my Tens 7000 electro therapy device. Long lasting power. My device is very power demanding. I highly recommend this battery.
5 out of 5 stars
7 March, 2026
originally posted on influenster.com

Wow just wow
I can't tell you how ama this battery is. The last time I bought one was 8 years ago and it's still going, all my smoke alarms have them in and they're still going strong too and that's been about 5 years
5 out of 5 stars
3 March, 2026
originally posted on influenster.com

Never any issues
My husband only uses these batteries for his paintball gear as he only trusts this brand to not ruin his gear. He lives the consistency and longevity. Never any issues.
5 out of 5 stars
Thumbs up graphic, would recommend
20 February, 2026Verified purchase
Great!
Great batteries, used for smoke detectors!
5 out of 5 stars
4 February, 2026
originally posted on influenster.com

Best volt battery out there
packages well the condition is great and powers at ultimate power not heavy at all overall a great battery for any time you need the volt batteries energizer is the way to go
5 out of 5 stars
30 January, 2026
originally posted on influenster.com

Long lasting
The voltage is perfect for my son's toy cars, and it lasts a very long time. It's also easy to use. It works for remote control cars; I forgot to buy batteries for a while!
5 out of 5 stars
26 January, 2026
originally posted on influenster.com

Very reliable and long lasting
I’ve been using these in my smoke detector and they’ve lasted really well. They hold power for a long time and don’t suddenly die out. I like that they feel reliable, especially for safety devices. A little more expensive, but I trust these more than cheaper brands.
5 out of 5 stars
Thumbs down graphic, would not recommend
20 January, 2026Verified purchase
Batteries
hopefully they will last a long time.