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The size 675P cochlear implant battery is a rare zinc air battery cell specifically designed for the higher power requirements of cochlear implant devices.
It is a small battery cell that measures 11.6mm in diameter and 5.4mm in height. It often uses the color blue on its labels and packaging to help consumers identify its size based on the industry standard color code for hearing aid batteries, but be sure not to confuse it with the similarly named and color coded size 675 battery for behind-the-ear hearing aid devices.
How do size 675P zinc air cochlear implant batteries work?
The most common batteries for hearing aids use zinc air technology. Zinc air batteries are activated by oxygen, so hearing aid battery manufacturers have created a sticky insert tab that prevents the batteries from becoming unintentionally activated. As such, be sure to leave the sticky tab intact until you are ready to use the battery because once you have activated it, there is no way to deactivate and preserve it.
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When you are ready to use your size 675P zinc air battery, you simply pull the tab out of it to allow oxygen to enter and activate it via tiny holes in the battery. While the holes are large enough to allow oxygen to enter, they are also small enough to prevent battery fluid from leaking out. An additional filter is located behind the holes to further prevent any potential leakage.
Because oxygen must also pass through the filter, it is absorbed slowly, so it is important to give your battery some time to absorb enough oxygen to fully power it after pulling the tab.
30-60 seconds may be sufficient time for your battery to absorb enough oxygen, although be sure to read the instructions on your cochlear implant battery packaging carefully in case it needs to be longer than that. Some manufacturers recommend as much as 3-5 minutes.
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Is the size 675P cochlear implant battery known by another name or model number?
Yes, different brands give the same battery different model numbers. See the cross-reference list for the size 675P cochlear implant battery below.
Size 675P Cochlear Implant Battery Replacement Cross-Reference List
The size 675P cochlear implant battery replaces the following and more:
- C675
- Energizer C675
- I.E.C. P675HP
- iCellTech 675CI
- P675
- PowerOne Implant Plus P675
- Powertone VARTA P675IP
- Rayovac Cochlear PLUS
- Rayovac L-Series (Loud ‘n Clear) 675CA
- Rayovac L-Series (Loud ‘n Clear) 675CP
- ZA675P
- ZeniPower A675P
How can I extend the life of my size 675P disposable cochlear implant battery?
Since most disposable cochlear implant batteries don’t have too long of a battery life once activated, you might want to take good care of your batteries to help extend the battery life and hopefully, save you some money in the long run.
Here are some tips:
- Wash your hands before handling cochlear implant batteries.
- Store your cochlear implant batteries at room temperature, not in the refrigerator or freezer.
- Do not carry loose cochlear implant batteries in your purse or pocket as contact with coins or keys can short-circuit them.
- If you are using a zinc air cochlear implant battery, note that it is not activated until you remove the sticky tab and allow oxygen to enter the battery.
Be sure to allow the battery enough time to absorb the oxygen needed to fully power it.
Some manufacturers recommend at least 30-60 seconds (some others even recommend 3-5 minutes), although specific instructions for your particular battery model should be included on the battery packaging.
Chart for Size 675P Cochlear Implant Batteries
| Cochlear Implant Battery Model | Size 675P |
| Color Code | Blue/Various |
| Type / Chemistry | Zinc Air |
| Voltage | 1.45V |
| Diameter | 11.6 mm |
| Height | 5.4 mm |
| Nominal Capacity | 580mAh |