Hearing aid batteries run your day, and a weak cell ruins a meeting, a phone call, or a quiet dinner with family. Most behind-the-ear and in-canal models use standardized zinc-air cells, and the size you need depends on your device’s battery door. Size 312 sits in the middle of the lineup, slotted between the smaller 10 and the larger 13 and 675. The picks below cover size 312 alongside a few close siblings for comparison, so you can see how the major brands stack up.
The Picks In Brief
Energizer CR2032 Batteries (10 Pack)
DURACELL DL2032 Lithium Batteries (12-Pack)
Duracell Hearing Aid Batteries Size 675 (12-Pack)
Rayovac Size 13 Hearing Aid Batteries (56-Pack)
Duracell Hearing Aid Batteries Size 13 (12-Pack)
Duracell Activair Size 10 (80 Batteries)
Energizer Size 312 EZ Turn & Lock (24-Pack)
Varta PowerOne Size 312 (60 Cells)
A Breakdown Of The Leading Choices
The Energizer CR2032 coin cell belongs in the lithium coin family, which is the technology powering key fobs, bathroom scales, and AirTags rather than hearing aids. Hearing aids rely on zinc-air chemistry, since those cells deliver the steady, low-current discharge that microphones and amplifiers demand over many hours.
Stocking a 10-pack makes sense for a household that runs multiple small electronics. You get the trusted brand-name reassurance without paying for specialty packaging. For anyone pairing hearing aid batteries with the rest of the electronics drawer, this pack covers the gap nicely.
Practical Pluses
- Wide household coverage across key fobs, remotes, and small electronics
- Ten cells give a reasonable reserve for low-drain devices
- Lithium chemistry holds charge for years in storage
- Compact 3V form factor drops into most standard coin-cell holders
Points To Keep In Mind
- Wrong chemistry for hearing aids, which need zinc-air cells
- Pack size is small for users running several coin-cell devices
Who Will Love This
You keep a junk drawer full of small electronics and want one reliable coin-cell brand on hand.
Swap It Out When
The Varta PowerOne Size 312 suits you better when your goal is powering actual hearing aid hardware.
Duracell’s 12-pack of DL2032 lithium coin cells lands in the same category as the Energizer CR2032 above. These are lithium manganese dioxide cells, designed for low-drain electronics like watches, calculators, and small medical devices that prefer a steady voltage over time.
The two-blister-six configuration keeps fresh cells organized in pairs, which is handy when you keep batteries in a closet or a workshop drawer. For shoppers who want a familiar name and a moderate quantity, this sits right in the sweet spot.
Practical Advantages
- Twelve cells split across two cards for organized storage
- Duracell brand recognition for household buyers
- Reliable voltage in watches and glucometers
- Compact card design fits standard kitchen drawer organizers
Trade-Offs To Consider
- Not designed for hearing aid discharge patterns
- Pack count is moderate for households running many coin-cell devices
Built With In Mind
You keep a mixed fleet of household electronics and value brand familiarity over specialty chemistry.
A Better Fit Elsewhere
Choose the Energizer Size 312 EZ Turn & Lock when your primary need is actual hearing aid power.
Size 675 is the largest cell in the standard hearing aid lineup, color-coded blue, and built for powerful behind-the-ear devices. These are the workhorse cells for severe-to-profound hearing loss models that draw more current for stronger amplification.
The extra-long EasyTab is the standout feature here, giving arthritic fingers enough grip to peel and place the cell without fumbling. Twelve cells per pack suit someone who swaps a battery weekly and wants a couple of months of supply without overbuying.
The Case For It
- Extra-long tab makes daily swaps easier for arthritic hands
- Color-coded blue packaging matches the standard 675 identifier
- Reliable power output for high-drain behind-the-ear devices
- Twelve-cell pack fits a multi-month supply cycle for moderate users
Worth Bearing In Mind
- Wrong size for hearing aids using 312 or 13 cells
- Pack size is small for users replacing batteries every few days
Whose Shelf It Belongs On
You wear a powerful BTE hearing aid and need blue-tab 675 cells with comfortable handling.
Reach For A Different Pick When
Pick the Duracell Hearing Aid Batteries Size 13 instead when your device uses the smaller orange-tab standard.
Rayovac’s 56-pack of Size 13 cells targets users who swap batteries frequently and want to buy in bulk. Size 13 sits between 312 and 675 in capacity, color-coded orange, and powers many in-canal and full-shell hearing aids.
The certified child-resistant packaging adds a real safety layer for households with curious grandchildren. Combined with the longer tab for quick handling, this pack suits anyone rotating through cells at a steady clip.
Useful Highlights
- Fifty-six cells keep a frequent swapper supplied for months
- Child-resistant packaging tested against CPSC standards
- Longer tabs aid handling for users with reduced dexterity
- Orange-tab identifier matches standard Size 13 hearing aids
Honest Caveats
- Larger upfront commitment than 12-pack options
- Wrong size for devices requiring Size 312 brown-tab cells
Key Advantages
Right Fit For
You rotate through Size 13 cells weekly and prefer a single large order over monthly restocks.
A Sibling Pick Shines When
You wear Size 312 devices and want the locking-dial convenience of the Energizer EZ Turn & Lock 24-pack.
This 12-pack of Size 13 orange-tab cells covers standard in-canal and half-shell hearing aids that fall between the slim Size 312 and the larger Size 675. The same EasyTab feature found on the Size 675 version applies here, so handling stays consistent across the Duracell hearing aid line.
For a household using Size 13 devices, a 12-pack gives roughly three months of daily-swapping supply without piling up extras. The orange color coding lines up with international hearing aid battery standards, so finding the right cell in a mixed drawer stays quick.
Advantages To Know
- Extra-long EasyTab for users with limited hand strength
- Standard orange-tab coding matches Size 13 devices worldwide
- Consistent handling across Duracell’s full hearing aid range
- Twelve cells match typical three-month replacement cycles
Where It Is Less Suited
- Not interchangeable with 312 brown-tab or 675 blue-tab devices
- Pack size is small for users swapping multiple times per week
The Right Fit
You rely on a Size 13 hearing aid and want manageable monthly supply in classic Duracell packaging.
Look Elsewhere When
Choose the Rayovac Size 13 56-pack when you prefer fewer restocks and child-resistant packaging.
Size 10 is the smallest standard hearing aid cell, color-coded yellow, and commonly found in mini behind-the-ear receivers and discreet in-canal models. This 80-cell bulk pack targets users who burn through Size 10 quickly because their devices sit deeper in the canal and demand more frequent swaps.
The compact, lightweight packaging matches the rest of the Activair lineup. For someone who has settled on Size 10 devices and wants to minimize reordering, the 80-count format delivers real convenience.
Positive Takeaways
- Eighty cells cover extended supply for high-swap users
- Color-coded yellow matches the Size 10 standard
- Compact Activair packaging stores easily in a medicine cabinet
- Same long-tab convenience as other Duracell hearing aid sizes
Small Caveats
- Size 10 cells run shorter per charge than 13 or 675
- Bulk count is excessive for low-usage households
Feature Card
Made For
You wear compact Size 10 hearing aids and swap cells often enough to justify a large bulk pack.
Another Choice May Suit
Pick the Energizer Size 312 EZ Turn & Lock if your devices use the medium brown-tab standard instead.
Size 312 is the brown-tab standard that powers many receiver-in-canal and slim behind-the-ear devices. Energizer’s EZ Turn & Lock dial is the real standout: a rotating wheel feeds one cell at a time while the locking cover keeps the rest sealed until needed.
This matters in homes with pets or grandchildren, where loose button cells on a counter can pose a swallowing risk. The 24-cell count covers roughly two months of use, and the dial design makes each swap quick and clean.
Well-Handled Touches
- Locking dial keeps unused cells safely contained
- Brown-tab color coding matches the Size 312 standard
- Compact wheel stores neatly in a nightstand drawer
- Twenty-four cells align with typical two-month usage windows
Things To Weigh
- Higher per-pack cost than loose-bulk 80-cell formats
- Dial mechanism adds a small learning curve on first use
Best Suited To
You wear Size 312 hearing aids with wireless streaming and want safe, dial-based dispensing at home.
Where Another Pick Suits Better
Choose the Duracell Activair Size 10 80-pack when your devices run on the smaller yellow-tab standard.
Varta’s PowerOne line comes out of German manufacturing and is widely distributed through audiology clinics in Europe. The 60-cell bulk format arrives as ten small cards of six cells each, ideal for audiologists’ offices or households keeping multiple spares in different rooms.
For users with premium digital hearing aids that pull steady current for advanced noise processing, PowerOne’s reputation for stable voltage is a meaningful draw. The trade-off shows up in availability and per-cell pricing compared to mainstream drugstore brands.
A Few Highlights
- German-made cells with consistent factory quality control
- Stable voltage for advanced digital hearing aids
- Ten-pack card format distributes spares across rooms or bags
- Strong reputation among clinical audiologists
Potential Compromises
- Per-cell cost runs higher than Duracell or Energizer equivalents
- Ten-card packaging creates more storage clutter than a dial pack
Who Should Grab It
You run premium digital hearing aids and prioritize voltage stability over price-per-cell savings.
Consider Something Else When
The Energizer Size 312 EZ Turn & Lock is the smarter pick when safe dial dispensing matters more than German pedigree.
What Matters When Picking The Right Cell
The first thing to check is the size printed on your hearing aid’s battery door. Standard zinc-air hearing aid cells come in four sizes, each with a universal color code: 10 yellow, 312 brown, 13 orange, and 675 blue. Using the wrong size either won’t fit the door or won’t seat correctly against the contacts, which can damage the device or cause intermittent power.
Next, think about how often you actually swap cells. A user who replaces once a week benefits from a 12-pack, while someone running through Size 10 cells twice a week gets more value from an 80-count bulk pack. Tab length matters too, especially for anyone with arthritis or reduced fingertip strength. Longer tabs and dial-based dispensers reduce fumbling during daily swaps.
For households with pets, toddlers, or visiting grandchildren, child-resistant packaging and locking dispensers add real safety. Loose button cells are a documented ingestion hazard, so anything that keeps unused cells sealed until needed is worth the small premium.
Smart Buying Advice For This Category
Pitfalls Shoppers Hit
The most common mistake is grabbing the cheapest coin-cell pack at the register and assuming it works in a hearing aid. Lithium coin cells and zinc-air hearing aid cells look similar but discharge on completely different curves. A hearing aid powered by the wrong chemistry will seem to work for an hour, then drop off sharply mid-conversation.
Another trap is buying a multi-pack without confirming the size. Each hearing aid model locks you into one of the four standard sizes, so a 60-pack of Size 13 is useless if your device takes 312. Check the battery door or your audiologist’s paperwork before clicking order.
Where The Extra Money Goes
Premium-tier hearing aid batteries typically come from specialty manufacturers like PowerOne, with stricter factory testing and tighter quality control. For basic analog devices, that premium adds little. For advanced digital hearing aids with wireless streaming and noise processing, a more stable voltage curve translates to fewer mid-day dropouts and more consistent sound.
You also pay extra for packaging innovation. Locking dials, child-resistant cards, and extra-long tabs all add manufacturing cost, and they earn their keep when dexterity or safety is a real concern at home.
Frequently Asked Questions
What does the color code on hearing aid batteries mean?
The color tab identifies the size standard: yellow is 10, brown is 312, orange is 13, and blue is 675. The color stays consistent across every manufacturer, so an orange tab is always Size 13 regardless of brand.
How long does a Size 312 battery typically last?
A Size 312 cell usually lasts between three and seven days depending on streaming use, amplification level, and humidity. Heavy wireless streaming drains cells faster than basic amplification, so the same battery behaves differently across hearing aid models.
Can I store hearing aid batteries in the refrigerator?
No. Refrigeration introduces moisture that interferes with the zinc-air chemistry. Store cells at room temperature in their original packaging, and let a new cell sit for a minute after peeling the tab before inserting it for full activation.
Are all Size 312 batteries the same quality?
No. Mainstream drugstore brands and specialty manufacturers like PowerOne use different factory tolerances and quality control processes. Premium cells tend to hold voltage more steadily across their lifespan, which matters most for advanced digital hearing aids.
What should I do with used hearing aid batteries?
Most municipalities accept zinc-air cells at household hazardous waste drop-offs. Some hearing aid manufacturers and audiology clinics also run mail-back recycling programs. Never toss used cells in regular household trash where pets or children might find them.
The Takeaway
Size 312 sits in the middle of the hearing aid battery family for a reason: it powers the most common receiver-in-canal and slim behind-the-ear models on the market today. The Energizer EZ Turn & Lock dial offers the cleanest daily experience for most users, while the Varta PowerOne bulk pack rewards those running premium digital aids. Match the color tab to your device door, then choose a count that fits your real swap frequency.