Williams Sound HEARING HELPER TGS PRO 720 - Manual (Page 14)

® 14
B
ATTERY
I
NFORMATION
I
NSTALLATION
To open the T31 transmitter battery compartment, use a coin in the slot on the bottom of the
transmitter. To open the R35 receiver battery compartment, lift the tab on the back of the receiver
with a finger. Press the batteries into place, observing proper battery polarity. Incorrect insertion of
the battery is difficult, and if forced, may cause both mechanical and electrical damage to
transmitters or receivers not covered by the five year warranty. Units will not work with the battery
incorrectly installed.
N ON - RECHARGEABLE B ATTERIES
In normal use, two AA 1.5 V alkaline batteries (BAT 001) will last about 12 hours in the
PFM T31 Transmitter and approximately 100 hours in the PPA R35 Receiver. If the sound becomes
weak or distorted, replace the batteries. Do not leave dead batteries in the receivers. Battery
corrosion is not covered by the Williams Sound five year warranty.
R ECHARGEABLE B ATTERIES
The PFM T31 Transmitter and PPA R35 Receivers can use rechargeable AA batteries
(BAT 026). On an overnight charge, these NiMH batteries are designed to operate a PFM T31
Transmitter for approximately 10 hours, and PPA R35 Receivers for 56 hours.
The battery installed in the receiver may be recharged in the receiver only if it is a NiMH battery,
and only if a Williams Sound CHG 3512 Multi-Charger is used. Damage from improper charging is
not covered by the Williams Sound five year warranty.
Important Rechargeable Battery Information
Rechargeable batteries are shipped in a discharged condition. They must be charged for a complete
charge cycle before the first use (approximately 4 hours). Rechargeable batteries will need to be
replaced after 1-2 years of use. Do not dispose of batteries in fire. Do not open batteries - toxic
chemicals inside.
+ –
+ –
Battery
Compartment
Tab
Rear of Transmitter
or Receiver
Note Proper
Polarity
F IGURE 9: B ATTERY I NSTALLATION
!! IMPORTANT WARNINGS !!
DO NOT ATTEMPT TO RECHARGE ZINC CARBON (“HEAVY DUTY”), ALKALINE, OR LITHIUM BATTERIES!
DO NOT ATTEMPT TO RECHARGE DISPOSABLE BATTERIES! These batteries may heat up and explode, causing
possible injury and damage to the equipment.
Avoid shorting the plus and minus battery terminals together with metal objects. Battery damage and burns can
result!