Rayovac Extra Advanced 312 - 1 blister

Rayovac Extra Advanced is now called Rayovac Extra (so without the addition Advanced). They are the same batteries, only the new packaging differs in that the text Advanced is no longer printed on it.

Rayovac 312 (brown PR41) Extra Advanced hearing aid batteries are among the most-sold hearing aid batteries in the world. Rayovac 312 (brown PR41) Extra Advanced hearing aid batteries combines reliability with a long lifespan. What's more, Rayovac 312 (brown PR41) Extra Advanced hearing aid batteries always offer stable and consistent performance. The Rayovac 312 (brown PR41) Extra Advanced hearing aid battery can be used interchangeably with hearing aid battery types 312, PR41, LR41, B3124, B347PA, DA312H, DA312N, 312HP, 312HPX, AC312E, AC312EZ, AC312, 312UP, 312DS, ME7Z, PR312H, PR41, P312, L312ZA, 312AE, 312A, R312ZA, ZA312, PR312, V312, V312HP, W312ZA, A312, ZL312, LAP, S312, etc.