A few years ago, the hearing aid industry standardized battery sizes.
They use a color code to indicate the battery size.
Orange is size 13, brown is size 312, yellow is size 10, and blue is size 675.
Sometimes there are other letters after the size numbers, but those don't mean anything as far as the size goes.
The color code makes it much easier for people to remember and get the correct size battery for their hearing aid.
The most common hearing aid batteries are called Zinc Air batteries, and they have a tab on them that must be removed when you install them.
The battery works by mixing zinc with air.
When the tab is removed, the battery becomes active and will stay active even if the tab is replaced.
It cannot be "deactivated.
" For this reason, do not store batteries in hot places as the adhesive could become "unstuck" and the battery will activate.
Also, keep the tabs on until you put the battery into the hearing device.
Unused batteries have a shelf life of about three years.
After that, they may not perform as well.
Also, do not mix old, used batteries with new ones so that you don't accidentally install an old battery.
Normally, battery life depends mainly on the type of hearing device worn.
Some aids require more power than others.
For example, digital hearing devices require more battery power than analog aids because they have more complicated circuitry.
Typically, a battery will last five to seven days.
If your battery life is shorter than that, it is possible that the hearing device is not working properly.
In that case, it should be looked at.
A professional can check battery contacts and test to see how much drain is being put on the battery.
This test will indicate if repairs to the aid are necessary.
Most drug stores carry hearing aid batteries, and they can also be purchased online.