Allmax 9V Maximum Power Alkaline Batteries (Pack of 4) – Ultra Durable, 7 Year Shelf Life, Leak-Proof Design – Perfect for Smoke Detectors and Wireless Microphones (9 Volt)

Price: $33.62
(as of Feb 06, 2026 07:34:36 UTC – Details)

Product Description

Customer Reviews

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Packaging Quantity
16, 36, 100, 600 12, 36, 100, 600 6, 12, 48 12, 16, 24, 48 16, 48 4, 12

Product Category
Maximum Power Alkaline Maximum Power Alkaline Maximum Power Alkaline Maximum Power Lithium Maximum Power Lithium Maximum Power Lithium

Shelf Life
10 years 10 years 7 years 20 years 10 years 10 years

0% Mercury, Cadmium, Lead

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Leakproof

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Battery Voltage
1.5 volts 1.5 volts 1.5 volts 1.5 volts 3 volts 9 volts

Best Uses
remote controls, flashlights, toys, Xbox controllers, digital cameras, wireless mouses and keyboards, radios, bubble machine, door locks, clocks, electric pencil sharpener, toothbrushes, laser level, etc. remote controls, flashlights, toys, wireless mouses and keyboards, clocks, flameless candles, LED lights, toothbrushes, digital cameras, radios, fire sticks, traffic wand, noise meter, headlamp, blood pressure monitors, etc. flashlights, toys, candles, radios, lanterns, Christmas decorations, baby swings, motion detectors, clocks, air pumps, trail cameras, megaphones, traffic wands, smoke detectors, baby rockers, boom boxes, remotes, stereos, etc. outdoor security cameras, digital cameras, smart door locks, smoke detectors, outdoor weather stations, VR controllers, Xbox controllers, wireless mice, recorders, radios, clocks, etc. flashlights, digital cameras, camcorders, wireless security systems, lasers, toys, microphones, calculators, light meters, smoke detectors, fire alarms, smart sensors, doorbells, home automation, medical equipment, GPS equipment, etc. smart home devices, outdoor surveillance systems, digital cameras, handheld games, smoke detectors, carbon monoxide detectors, toys, garage door openers, wireless microphones, stud finders, walkie-talkies, multimeters, alarm clocks,etc.

Common Questions:

Are Allmax alkaline batteries rechargeable?

No, Allmax alkaline batteries are not rechargeable. Do not attempt to recharge standard alkaline batteries, as this may cause leakage or explosion.

Where can I find the expiration date?

You can find the expiration date on the body of the battery or on the box. It is marked with a “Best Before” date. Our Allmax 9V Alkaline battery has a 7-year shelf life, meaning under proper storage conditions you can use it any time before this date.

Will the battery fit in my device?

Yes, in most cases. Our 9V alkaline battery measures approximately 1.88″ (height) × 1.02″ (length) × 0.67″ (width), conforming to IEC standards. If your device’s battery compartment follows these standards, our battery will fit.

How are Allmax batteries packaged?

There is an Allmax 9V Alkaline battery tightly wrapped in plastic shrink packs, with 4 shrink packs per package that are well-packed in boxes that are easy to open, easy to stock, reclosable, and impact-resistant, so your batteries are always protected.

Can I store batteries in the refrigerator?

It is not a good idea to store batteries in the refrigerator. It is best to store batteries in a cool, dry place. We DO NOT recommend storing batteries in the fridge. This does not lengthen battery life. For safety reasons, please keep batteries away from children and from extreme temperatures, hot or cold. Do not freeze batteries, and do not expose batteries to fire. Extreme temperatures may cause batteries to explode or may lead to harmful outcomes.

Are batteries affected by temperature?

Extreme high or low temperature is not good for batteries. DO NOT use or store batteries at high or low temperature. Low temperature may cause battery discharge capacity to drop, while high temperature may lead to battery leakage.

What should I pay attention to during use?

Before use, remove any protective film from the battery and ensure the positive and negative terminals in the battery compartment are clean and free of dirt or rust. Do not mix old and new batteries, or combine batteries of different types or brands.

How can I track the status of my order?

If you have any questions or concerns about the delivery or status of your order, please contact Amazon through their webhttps://themegacartz.com/ or by calling their toll-free number. Together we work to ensure your batteries are delivered on time and they are in perfect condition.

What if I receive a broken or defective product?

If your box or product is damaged in any way, please contact Amazon. Amazon is responsible for delivering our products, so they will take care of your order. If you need further assistance, please do not hesitate to reach us through Amazon. Our information is easily accessible.

★ HIGH PERFORMANCE – Allmax Maximum Power 9V batteries are high quality, high performance alkaline batteries designed based on EnergyCircle technology to provide your electronic devices with maximum energy.
★ ULTRA LONG LIVING – Allmax 9V batteries are considered “ultra-durable” and have proven to be more powerful than conventional alkaline batteries in independent tests, which means you can expect a longer life from these batteries.
★ Leak-proof design – Allmax 9V batteries lock in the materials and protect the electronic devices. They are therefore perfect for everyday use in the home or in the business and meet all the needs of the family.
★ Longest shelf life – Allmax 9V batteries are always like new and run for up to 7 years with the highest performance when stored properly. The perfect choice for long-term storage and emergency kits.
★ Maximum power – Allmax 9V batteries provide your electronic devices with maximum energy for maximum performance, e.g. devices such as smoke detectors, carbon monoxide detectors, toys, garage door openers, wireless microphones, stud finders, walkie talkies, multimeters, alarm clocks, radio transmitters and dog barking controllers.