Tait TP9300 User Manual - page 147
Charging and caring for batteries 147
■
Do not short-circuit the battery contacts, neither
intentionally nor accidentally, e.g. by placing the
battery with conductive materials such as keys or
jewelry inside a pocket or container. Short-circuit-
ing the battery contacts can heat up the conduc-
tive material.
Attaching of labels
Warning
Do not obstruct the vent hole(s) on the
battery or the vent hole on the radio chassis label.
If the vent on the battery is obstructed the battery may
explode, causing personal injury and/ or damage to
property. If the vent on the radio is obstructed, audio
quality and/or key function may deteriorate and radio
seals may be damaged.
For detailed information about attaching labels safely,
see
"Attaching labels to the radio or battery" on
.
Charging temperatures
Notice
Do not expose a battery to very high or very
low temperatures for extended periods of time. Doing
so will shorten the usable life (‘service life’) of the
battery.
To achieve the best results when charging your
battery:
■
Before you begin to charge your battery, make
sure that the battery temperature is close to the
room temperature in which the battery is to be
charged.
■
If possible, charge the battery in
temperatures between 50 °F and
77 °F (between 10 °C and 25 °C).
This temperature range is the opti-
mal charging range.
Charging only starts when the battery is
between 32 °F to 104 °F (0 °C to 40 °C).
77 °F
25 °C
50 °F
10 °C