Duracell Coppertop AA Batteries, 28 Pack – Reliable Backup Power for Carbon Monoxide Detectors and Emergency Radios
Duracell Coppertop AA Batteries, 28 Pack – Reliable Backup Power for Carbon Monoxide Detectors and Emergency Radios
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Why you'll love it
- 12-year storage guarantee means batteries work even after years sitting in a drawer or emergency kit
- Trusted Duracell brand name backed by a defect guarantee gives peace of mind
- 28-count family pack with re-closable organizer reduces waste and keeps spares tidy
- Compatible with hundreds of common household devices so one purchase covers many needs
- POWER BOOST Ingredients promise longer-lasting performance in high-drain devices like controllers and toys
Perfect for
- Powering smoke detectors and home safety devices
- Stocking an emergency preparedness kit for storms or outages
- Replacing batteries in children's toys and baby monitors
- Keeping TV remotes, wireless keyboards, and gaming controllers running
- Bulk replacement for clocks, flashlights, and digital cameras
Product Information
COMPATIBLE WITH HUNDREDS OF EVERYDAY DEVICES: Works with TV remotes, children's toys, gaming controllers (Nintendo, Wii), smoke detectors, baby monitors, digital cameras, flashlights, clocks, wireless keyboards, computer mice, and any device requiring AA/LR6 batteries.
12-YEAR STORAGE GUARANTEE: Every Duracell Coppertop AA battery is guaranteed to remain ready for up to 12 years in storage. Stock up with confidence.
POWER BOOST INGREDIENTS: Duracell's exclusive POWER BOOST Ingredients deliver dependable, long-lasting performance in your devices.
QUALITY YOU CAN COUNT ON: Every Duracell battery is manufactured to strict standards and guaranteed against defects in material and workmanship.Trusted by families from everyday device to home safety use.
FAMILY-PACK VALUE: 28 AA batteries in a re-closable, organized pack—because your family's devices never wait for a convenient time to run out of battery power. Keep Duracell stocked and stay ready.
The AA battery powering the devices your family relies on every day—from TV remotes and smoke detectors to children's toys, baby monitors, gaming controllers, and flashlights. Duracell Coppertop AA alkaline batteries with POWER BOOST™ Ingredients deliver dependable, consistent power. Guaranteed for 12 years in storage—so the batteries in your emergency kit, your smoke detector drawer, and your holiday toy pile will work the moment you need them. From storm prep to everyday life, Duracell is your trusted battery brand.Number of Batteries: 28 AA batteries required. (included)
Brand: DURACELL
Model Name: Coppertop SIOC Batteries
Warranty Description: Limited Warranty
Battery Cell Type: Alkaline
Battery Capacity: 2850
Voltage: 1.5 volts
Reusability: Single Use
Compatible Phone Models: Any equipment that needs alkaline AA batteries
Battery Weight: 24 g
Item Dimensions: 8.88 x 5.5 x 0.88 inches
Item Weight: 1.65 pounds
Antenna Location: Camera,Remotes,Tv
Frequently Asked Questions
Will these Duracell AA batteries reliably power my smoke detector for the full recommended replacement cycle?
Yes. Duracell Coppertop AA batteries are alkaline cells rated at 2850 mAh, which is more than enough capacity to run a standard ionization or photoelectric smoke alarm for the full 6 to 12 months manufacturers recommend between battery swaps. Many homeowners replace them once a year during daylight saving time as a simple safety routine.
Are these batteries safe to store next to emergency supplies in case of a house fire or storm?
Yes. Duracell Coppertop batteries are sealed alkaline cells, so they will not leak, smoke, or produce flame under normal household storage conditions. The 12-year storage guarantee means batteries you put in a hallway emergency kit today will still hold usable charge when you need them during a power outage or storm.
How long will a 28-pack last if I rotate them through all my safety devices once a year?
A typical home has 4 to 8 battery-powered safety devices, including smoke alarms, CO detectors, and nightlights. Replacing each once a year with a fresh cell means a 28-pack covers roughly 3 to 7 years of annual rotations, which is why the 12-year shelf life is so valuable for safety stocking.
Can I rely on these batteries to power a flashlight during a blackout?
Absolutely. A standard LED flashlight draws very little current, and the 2850 mAh capacity of these AA cells will keep it running for many hours. Because the pack is re-closable, you can keep a few batteries sealed in a drawer or emergency kit right next to the flashlight so everything is ready when the lights go out.
Do these batteries leak and damage smoke detectors over time?
Duracell Coppertop batteries are engineered with a low self-discharge alkaline chemistry and a design intended to resist leakage during normal use. Still, safety experts recommend swapping smoke alarm batteries once a year rather than letting any alkaline cell sit inside a device for many years.
I am a homeowner stocking a 72-hour emergency kit. Is a 28-pack enough to power everything?
For most 72-hour kits, yes. You will typically need AA cells for a flashlight, a battery-powered radio, and a few small safety devices, which together use 6 to 12 batteries. The 28-pack gives you the core supply plus spares, and the resealable organizer keeps unused batteries protected and easy to find.
Are these safe to keep in a garage where temperatures swing between hot and cold?
Alkaline batteries like Duracell Coppertop handle typical garage temperature ranges well. For very hot attics or uninsulated sheds, storing the unopened pack indoors is the safest choice, because extreme heat can shorten shelf life faster than normal climate variation.
What should I do with old batteries from my smoke detectors when I replace them with this pack?
Used alkaline batteries should be taped at the terminals and taken to a household hazardous waste drop-off, a Call2Recycle location, or many retail stores that accept spent batteries. Never throw them in regular household trash where they can spark at waste facilities.
Is this battery safer than a generic store-brand AA for life-safety devices?
Duracell is one of the most widely used brands in professionally installed smoke and CO detectors, and the company backs each Coppertop cell with a defect guarantee. For life-safety devices where failure is not an option, that track record is why many homeowners and electricians choose Duracell over unbranded alternatives.
Will these batteries still hold a charge after sitting unused in a hall closet for 5 years?
Yes. Duracell guarantees these cells to hold usable charge for up to 12 years in storage, so a 5-year-old sealed battery from this pack will still test well above the voltage required by smoke detectors, flashlights, and emergency radios.
How do these compare to lithium AA batteries for emergency preparedness?
Lithium AA batteries last longer in extreme temperatures and have a higher energy density, but they cost two to three times more per cell. For most household emergency kits stored indoors at room temperature, alkaline Duracell Coppertop cells give you reliable backup power at a much more budget-friendly price per battery.
Why pay more for a name brand when cheaper batteries also say 10-year shelf life?
Shelf-life claims are only as trustworthy as the manufacturer behind them. Duracell publishes consistent test data, offers a defect guarantee, and is the brand most safety device makers test against. For a smoke detector that sits above your family, the small premium buys you years of proven reliability.
What if a battery from this pack is already dead when I open the package?
Duracell stands behind every Coppertop battery with a defect guarantee. If you receive a cell that does not power a device, contact Duracell customer support with the lot number printed on the pack and they will typically replace the battery at no charge.
Are alkaline batteries a fire risk if they touch each other or a metal surface?
Loose alkaline batteries can short if both terminals touch metal like keys or foil, which can generate heat. The re-closable organizer included with this 28-pack keeps each cell separated and capped, eliminating that risk during storage in a junk drawer or emergency kit.
I am worried about my pet chewing a battery. Is the chemistry inside dangerous if punctured?
Alkaline electrolyte is corrosive and can irritate tissue if a battery is punctured and the contents are swallowed or contact skin or eyes. Store the pack where pets cannot reach it, and if a pet ever chews or ingests a cell, contact your veterinarian or the ASPCA Animal Poison Control Center right away.
How do I store this 28-pack so the batteries last as long as possible?
Keep the unopened batteries in their original re-closable organizer and store them at room temperature in a dry location, away from direct sunlight and extreme heat. Do not mix new and used batteries in the same case, and never store loose cells where the terminals can touch metal objects.
Can I mix old and new batteries in the same device?
It is best not to. Mixing old and new batteries, or mixing alkaline with lithium or rechargeable cells, can cause the weaker batteries to leak and reduce the overall performance of the device. Always replace the full set at the same time with matching Duracell Coppertop cells.
How do I know when a battery in a device needs to be replaced?
Most devices will dim, run slowly, or show a low-battery indicator. If you do not get a warning, you can test an AA cell with a basic battery tester or a multimeter set to DC volts. Any reading above about 1.3V is still strong, while a reading under 1.0V means the cell should be replaced.
Are these batteries compatible with any device that uses AA cells?
Yes. Duracell Coppertop AA batteries are standard 1.5V alkaline cells that work in any device designed for AA batteries, from TV remotes to flashlights to baby monitors. Always check the device label, however, because a few specialty electronics call for rechargeable NiMH or lithium AA cells instead.
Do these work in devices that need 1.2V rechargeable NiMH batteries?
Most consumer devices are designed to work across the 1.2V to 1.5V range, so a fresh alkaline AA will function in a device that normally uses NiMH. However, some battery gauges and chargers are calibrated for the specific chemistry, so for those specific products, use the battery type listed in the manual.
What is included in the box when I order this product?
Inside the package you will get 28 Duracell Coppertop AA alkaline batteries packed in a re-closable cardboard organizer. No charger or accessories are included, because these are single-use batteries. You will need a separate battery tester if you want to check remaining charge over time.
Are Duracell Coppertop batteries safe to take on an airplane?
Yes. Spare alkaline batteries under 100 watt-hours are allowed in carry-on luggage, and the 28-pack easily fits within that limit. Pack them in their original case or a small plastic bag so the terminals cannot short against keys, coins, or other metal items.
Can alkaline batteries be thrown in the regular trash?
In most U.S. states, single-use alkaline batteries can be safely disposed of in the regular household trash because modern formulations no longer contain heavy mercury. Where local rules differ, such as California, you should drop them off at a household hazardous waste site or a Call2Recycle location.
What is the difference between alkaline and rechargeable NiMH batteries?
Alkaline batteries are single-use, inexpensive, and hold their charge for years on the shelf, which makes them ideal for remotes, clocks, and emergency devices. NiMH rechargeable batteries cost more up front but can be recharged hundreds of times, which makes them a better fit for high-drain devices like camera flashes and game controllers.
