If you wear a hearing aid daily, you already know how disruptive a dying battery can be mid-conversation. The right cell keeps sound steady through long workdays, dinners out, and quiet evenings at home. I put together this roundup to help you match the right size and brand to the device in your ears, so you’re never caught swapping cells at the worst moment.
The Main Contenders
The Strengths Of Each Pick
Size 675 cells are the largest button cells in the hearing aid world, and they show up most often in behind-the-ear models with stronger amplification. This Philips pack delivers that demand at a steady 1.45V zinc-air output, which matters for wearers who stream calls or push their devices through long commutes. The 60-count format also stretches nicely across several weeks of use, assuming a typical replacement cycle.
For anyone running high-output aids through busy days, this is the dependable workhorse size. If your audiologist wrote “675” or “PR44” on the prescription, you’ve found the right category.
The Value In It
- Built for power-hungry behind-the-ear aids that drain smaller cells quickly
- Zinc-air chemistry holds a consistent 1.45V, reducing mid-day dropouts
- Bulk 60-count format cuts down on reordering for frequent users
- Standard tab design makes daily swaps quicker, especially for users with arthritis
Honest Caveats
- Larger physical cell means it won’t fit any in-ear or receiver-in-canal device
- Higher capacity also means a heavier feel if you’re carrying spares in a small case
Key Attributes
Who It Suits Best
Wearers of high-power behind-the-ear aids who push their devices through streaming, phone calls, and long days and want fewer mid-week swaps.
Consider Something Else When
Owners of in-ear or receiver-in-canal aids should reach for the PHILIPS Size 312 pack instead, since 675 cells physically will not fit those smaller housings.
Size 312 is probably the most common hearing aid battery in circulation, fitting a wide range of receiver-in-canal and in-ear models. This Philips 24-pack keeps the format approachable, ideal for first-time shoppers who want to test the brand before committing to bulk storage. The cells use the standard 1.45V zinc-air chemistry that audiologists expect from a quality replacement.
For someone with a mild-to-moderate prescription and a standard in-ear device, this is the entry-level size that just works. It’s also a smart backup pack to keep in a travel kit alongside your primary stock.
A Few Highlights
- Fits the most popular hearing aid size, used across many RIC and ITE models
- Smaller pack size is easier to finish before cells lose freshness sitting in a drawer
- Steady zinc-air output helps avoid the mid-conversation fade some users notice
Points To Note
- Per-cell cost runs higher than the larger 60-count Rayovac option later in this list
- Standard zinc-air tabs can be fiddly for users with limited grip strength
Made For
First-time wearers and travelers who want a manageable 24-count pack of the most universal hearing aid size on the market.
Skip It When
Long-term daily users looking to stock up should consider the Rayovac Extra Advanced Size 312 60-pack, which typically lowers the per-cell cost.
Rayovac has built a reputation in the hearing aid category that long-time wearers tend to trust, and this 60-pack in the same Size 312 standard is built for steady, all-day output. The brown color tab is the universal signal for size 312, making it easy to grab the right cell when you’re fumbling in low light. Owners commonly report that the high energy density keeps output stable until the cell fully exhausts, with less of the gradual fade some cheaper cells show.
Compared to the smaller Philips 312 pack above, this one trades the convenience of a small format for serious volume savings. For shoppers who know their size and don’t want to reorder every few weeks, the math works out.
The Helpful Details
- Bulk 60-count format brings per-cell cost well below smaller packs
- Rayovac’s high energy density is widely reported to maintain output until the end of life
- Mercury-free construction aligns with modern environmental standards
- Frustration-free packaging opens cleanly, a small but real quality-of-life touch
Some Limits To Know
- Zinc-air cells can lose charge faster if stored in humid bathrooms or glove compartments
- Once the tab is pulled, activation starts, so leaving a loose cell in a kit wastes capacity
- Only fits Size 312 devices, so it won’t help with 675 or 13 models
Best Suited To
Daily wearers who know their Size 312 prescription and prefer to stock up once instead of reordering small packs every few weeks.
Reach For A Different Pick When
Someone needing Size 675 for a high-power BTE device should grab the PHILIPS Size 675 60-count instead, since this Rayovac pack won’t fit that category.
Size 13 sits in the middle of the hearing aid battery family, smaller than 675 but larger than 312 or 10. It’s the cell you’ll find in many in-ear and some behind-the-ear models designed for mild-to-moderate loss. This Philips 60-pack delivers that mid-tier demand with the same zinc-air platform used across the brand’s line, which means consistent behavior if you’re already using their other sizes.
It’s the format I recommend for wearers who have moved up from a starter device and need a reliable bulk source. The orange color tab matches the international IEC standard, so there’s no guessing when sorting mixed drawers of cells.
Why It Works Well
- Mid-tier cell size fits many ITE and BTE models for mild-to-moderate hearing loss
- Zinc-air chemistry avoids the power-lag issues some wearers notice mid-call
- 60-count format keeps replacements on hand for several weeks of daily use
- Color-coded orange tab helps avoid mixing it up with the 312 or 675 packs already in your drawer
Trade-Offs To Consider
- Battery life per cell lands between the smaller 312 and larger 675, so heavy users may swap more often
- Standard tabs can be slippery for wearers with reduced hand mobility
Key Attributes
Perfect Match For
Wearers with mild-to-moderate loss using ITE or standard BTE aids who want a steady 60-cell supply without paying premium-tier prices.
Where Another Pick Suits Better
Users with high-output power aids should look at the PHILIPS Size 675 60-count, which delivers the higher energy density those devices demand.
Size 10 is the smallest of the standard hearing aid cells, and it powers the tiny completely-in-canal and micro receiver-in-canal devices that disappear inside the ear. The yellow color tab keeps it visually distinct from the 312 and 13 packs you might also keep in a shared drawer. Because the cells are physically small, replacement can feel fiddly, which is where a 60-count supply helps, you can afford to fumble a few without anxiety.
For anyone with a discreet mini device, this is the matching format. It’s also the one pack where I recommend a magnetic insertion tool, since the cells can be tough to position by fingertip alone.
Features That Help
- Smallest standard cell size, purpose-built for invisible CIC and micro RIC aids
- Zinc-air platform stays consistent with the larger Philips sizes, so behavior is predictable
- 60-count format offsets the higher per-cell cost typical of size 10
- Yellow tab makes it easy to distinguish from 312 or 13 cells in a shared drawer
Worth Bearing In Mind
- Smaller cells run shorter per use, so heavy wearers swap more frequently than with 13 or 675
- Tiny size makes handling awkward for users with arthritis or tremor
Quick Technical Notes
Whose Shelf It Belongs On
Wearers of discreet CIC or micro-RIC devices who need a steady supply of the smallest standard cell and value keeping extra cells on hand for travel.
Not Your Match When
Someone with a larger BTE or ITE device should choose the PHILIPS Size 13 or 675 packs instead, since Size 10 cells won’t physically fit those housings.
What Matters Most Before Choosing Battery For Hearing Aids
Size compatibility is the first filter, and it is non-negotiable. Hearing aids run on standardized color-coded cells (yellow for 10, brown for 312, orange for 13, blue for 675), so match the code printed on your existing battery or in your audiologist’s paperwork before anything else.
Chemistry matters next. Zinc-air cells are the industry default for disposable hearing aid power, and they stay inert until you pull the sealing tab, which gives them excellent shelf life in unopened packs. Once activated, exposure to air starts the clock, so storing opened cells loosely in a humid bathroom drains them faster than keeping the sealed pack in a cool drawer.
Capacity per cell scales with physical size. A Size 675 carries noticeably more energy than a Size 312, which carries more than a Size 10. Heavy users who stream audio or take long calls should consider sizing up where their device allows, since larger cells translate directly into fewer mid-day swaps.
Smart Buying Habits For Hearing Aid Batteries
Common Shopping Slip Ups
A frequent mistake is buying by price alone, ignoring the size code printed on the pack. Even a great cell is useless if it physically won’t fit the device, so always confirm the color tab and IEC code match what’s already in your drawer.
Another trap is buying small packs to “save money up front” without checking the per-cell cost. A 24-pack often costs more per cell than a 60-pack of the same brand, so bulk buyers tend to come out ahead as long as they can use the cells before the activation tab loses its seal.
Where The Extra Money Goes
Premium tiers in this category typically invest in tighter manufacturing tolerances, which translate into more consistent voltage over the cell’s lifetime. For wearers who notice mid-day dropouts or sudden cutoffs during calls, that consistency can be the difference between a quiet afternoon and an interrupted conversation.
Bulk counts also matter as a hidden cost factor. A 60-pack from a trusted brand often beats a 24-pack on per-cell cost, so paying slightly more up front for a larger pack is one of the easiest ways to lower the long-term cost of ownership without changing brands.
Frequently Asked Questions
How long do hearing aid batteries typically last?
Most wearers see three to ten days from a single cell, depending on the size, device power draw, and daily streaming time. Larger 675 cells outlast smaller 10 cells by a noticeable margin.
Should I remove the tab only when I’m ready to use the cell?
Yes. Zinc-air cells activate the moment air enters through the tab opening, so peeling it off early shortens the usable life. Keep tabs sealed until the moment of insertion.
Can I mix battery brands inside the same hearing aid?
It’s fine to switch brands as long as the size code matches. Many wearers alternate between Philips and Rayovac without issue, though staying with one brand can make behavior more predictable.
How should I store spare hearing aid batteries?
Keep sealed packs at room temperature in a dry spot, away from humid bathrooms and direct sunlight. A bedroom drawer or nightstand works better than a glove compartment or kitchen counter.
Are rechargeable hearing aids a better option than disposable cells?
Rechargeable aids make sense for users who want to skip the swap routine and don’t mind nightly charging. Disposable cells still win for travelers, people without easy charging access, or anyone who keeps multiple aids in rotation.





