User's Guide

Replacement battery

This hearing aid requires a size 312 zinc-air battery.

Model

Phonak Bolero

M-M / M-M Trial

Zinc-air

battery

size

312

Color

marking on

package

brown

IEC

code

PR41

ANSI

code

7002ZD

Please ensure you use the correct type of battery in

your hearing aids (zinc-air). Please also read chapter

20.2 for further information on product safety.

Low power: You will hear two beeps when the battery is

low. You will have approximately 30 minutes to change

the battery (this can vary, depending on the hearing aid

settings and battery). We recommend that you always

have a new battery on hand.