These GP Batteries size 13 hearing aid batteries are designed to operate perfectly in a range of different branded hearing aids. They boast 0% mercury and no added lead.
GP Batteries use the industry-standard colour code which can usually be found on battery tabs and packaging. These particular cells are size 13 so they use the colour Orange.
These size 13 cells can also be known as ZA13, PR48, AC13 or DA13 batteries.