User Guide

PAMS Technical Documentation Accessories
NSB-8
Issue 1 01/02 ãNokia Corporation Page 17
Recommended Batteries
Note: The capacity of the zinc air battery will fall 20% in a month. After the activa-
tion, the zinc air battery begins to self-discharge. The battery will be empty
within 5 weeks.
Table 1: Recommended Batteries
Type Size / IEC-type Rated
capacity
Talk time
(3mA load)
Standby
(20uA load)
Zinc Air Hearing Aid Bat-
tery
675 / PR44 540 mAh 180 hours 840 hours or
35 days (1)
Silver Oxide Hearing Aid
Battery
675 / SR44 150 mAh 50 hours 7 500 hours or
310 days
Alkaline Battery 675 / LR44 110 mAh 36 hours 5 500 hours or
230 days